US 9,944,945 B2Grant

Soybean event MON89788 and methods for detection thereof

Issue Date:2018-04-17

•12 Claims

•3 Drawing Sheets

Abstract

The present invention provides for soybean plant and seed comprising transformation event MON89788 and DNA molecules unique to these events. The invention also provides methods for detecting the presence of these DNA molecules in a sample.

Metadata

Assignee

Monsanto Technology LLC

Inventors

Marianne Malven
Jennifer Rinehart
Nancy Taylor
Ellen Dickinson

Application Information

Application Number:US 14/539,923

Filing Date:2014-11-12

Priority Date:2005-05-27

Art Unit:1663

Classifications

IPC:

C12N15/82A01H1/02A01H1/04A01H5/10A01N57/20

Patent Drawings (3 sheets)

Description

[0001] This application is a continuation of U.S. application Ser. No. 13/214,081, filed Aug. 19, 2011 (pending), which application is a divisional of U.S. application Ser. No. 12/575,352, filed Oct. 7, 2009, now U.S. Pat. No. 8,053,184, which application is a divisional of U.S. application Ser. No. 11/441,914, filed May 26, 2006, now U.S. Pat. No. 7,632,985, which application claims the benefit of U.S. Provisional Application No. 60/685,584, filed May 27, 2005, each of the entire disclosures of which are herein incorporated by reference.

BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] The present invention relates to a new and distinctive transgenic soybean transformation event, designated MON89788, a soybean cultivar derived therefrom, and plant parts, seed, and products thereof. The invention also relates to assays for detecting the presence of a DNA molecule specific to MON89788 in a plant part extract or seed extract.

[0004] 2. Description of Related Art

[0005] Soybean (Glycine max) is an important crop in many areas of the world. The methods of biotechnology have been applied to soybean for improvement of the agronomic traits and the quality of the product. One such agronomic trait important in soybean production is herbicide tolerance, in particular, tolerance to glyphosate herbicide. A herbicide tolerant soybean event would be a useful trait for managing weeds.

[0006] N-phosphonomethylglycine, also known as glyphosate, is a well-known herbicide that has activity on a broad spectrum of plant species. Glyphosate is the active ingredient of Roundup® (Monsanto Co., St. Louis, Mo.), a safe herbicide having a desirably short half-life in the environment. When applied to a plant surface, glyphosate moves systemically through the plant. Glyphosate is phytotoxic due to its inhibition of the shikimic acid pathway, which provides a precursor for the synthesis of aromatic amino acids. Glyphosate inhibits the enzyme 5-enolpyruvyl-3-phosphoshikimate synthase (EPSPS) found in plants.

[0007] Glyphosate tolerance can be achieved by the expression of EPSPS variants that have lower affinity for glyphosate and therefore retain their catalytic activity in the presence of glyphosate (U.S. Pat. Nos. 5,633,435; 5,094,945; 4,535,060, and 6,040,497). Enzymes that degrade glyphosate in plant tissues (U.S. Pat. No. 5,463,175) are also capable of conferring cellular tolerance to glyphosate. Such genes are used for the production of transgenic crops that are tolerant to glyphosate, thereby allowing glyphosate to be used for effective weed control with minimal concern of crop damage. For example, glyphosate tolerance has been genetically engineered into corn (U.S. Pat. No. 5,554,798), wheat (U.S. Pat. No. 6,689,880), cotton (U.S. Pat. No. 6,740,488), soybean (WO 9200377) and canola (US Patent Appl. 20040018518). The transgenes for glyphosate tolerance and the transgenes for tolerance to other herbicides, e.g. the bar gene, (Toki el al., 1992; Thompson et al., 1987; phosphinothricin acetyltransferase (DeBlock et al., 1987), for tolerance to glufosinate herbicide) are also useful as selectable markers or scorable markers and can provide a useful phenotype for selection of plants linked with other agronomically useful traits.

[0008] The expression of foreign genes in plants is known to be influenced by their chromosomal position, perhaps due to chromatin structure (e.g., heterochromatin) or the proximity of transcriptional regulation elements (e.g., enhancers) close to the integration site (Weising et al., 1988). For this reason, it is often necessary to screen a large number of events in order to identify an event characterized by optimal expression of an introduced gene of interest. For example, it has been observed in plants and in other organisms that there may be a wide variation in levels of expression of an introduced gene among events. There may also be differences in spatial or temporal patterns of expression, for example, differences in the relative expression of a transgene in various plant tissues, that may not correspond to the patterns expected from transcriptional regulatory elements present in the introduced gene construct. For this reason, it is common to produce hundreds to thousands of different events and screen those events for a single event that has desired transgene expression levels and patterns for commercial purposes. An event that has desired levels or patterns of transgene expression is useful for introgressing the transgene into other genetic backgrounds by sexual outcrossing using conventional breeding methods. Progeny of such crosses maintain the transgene expression characteristics of the original transformant. This strategy is used to ensure reliable gene expression in a number of varieties that are well adapted to local growing conditions.

[0009] It would be advantageous to be able to detect the presence of a particular event in order to determine whether progeny of a sexual cross contain a transgene of interest. In addition, a method for detecting a particular event would be helpful for complying with regulations requiring the pre-market approval and labeling of foods derived from recombinant crop plants, for example. It is possible to detect the presence of a transgene by any well known polynucleic acid detection method such as the polymerase chain reaction (PCR) or DNA hybridization using polynucleic acid probes. These detection methods generally focus on frequently used genetic elements, such as promoters, terminators, marker genes, etc. As a result, such methods may not be useful for discriminating between different events, particularly those produced using the same DNA construct unless the sequence of chromosomal DNA (“flanking DNA”) adjacent to the inserted transgene DNA is known. An event-specific PCR assay is discussed, for example, by Windels et al. (1999), who identified glyphosate tolerant soybean event 40-3-2 by PCR using a primer set spanning the junction between the insert transgene and flanking DNA, specifically one primer that included sequence from the insert and a second primer that included sequence from flanking DNA. Transgenic plant event specific DNA detection methods have also been described in U.S. Pat. Nos. 6,893,826; 6,825,400; 6,740,488; 6,733,974 and 6,689,880; 6,900,014 and 6,818,807, herein incorporated by reference in their entirety.

[0010] This invention relates to the glyphosate tolerant soybean event MON89788 (also referred to as MON19788 or GM_A19788) and to the DNA molecules contained in these soybean plants that are useful in detection methods for the plant and progeny thereof and plant tissues derived from MON89788.

SUMMARY OF THE INVENTION

[0011] The present invention provides a soybean transgenic event designated MON89788 (also referred to as MON19788) and progeny thereof having representative seed deposited with American Type Culture Collection (ATCC) with accession No. PTA-6708. Another aspect of the invention is the plant cells or regenerable parts of the plant and seeds of the soybean event MON89788. The invention also includes plant parts of soybean event MON89788 that include, but are not limited to a cell, pollen, ovule, flowers, shoots, roots, leaves, and products derived from MON89788, for example soybean meal, flour and oil.

[0012] One aspect of the invention provides compositions and methods for detecting the presence of a DNA transgene/genomic junction region from a soybean event MON89788 plant or seed or products derived from plant parts or seed. DNA molecules are provided that comprise at least one transgene/genomic junction DNA molecule selected from the group consisting of SEQ ID NO:1 and SEQ ID NO:2, and complements thereof, wherein the junction molecule spans the insertion site that comprises a heterologous DNA inserted into the genome of the soybean cell and the genomic DNA from the soybean cell flanking the insertion site soybean event MON89788. Such junction sequences may, in one aspect of the invention, be defined as comprising nucleotides 1093-1113 or 5396-5416 of SEQ ID NO:9, respectively. In other aspects of the invention, the junctions may be defined as including additional portions of the flanking genome and transgene, for example, and may be defined as comprising one or more sequence as given by nucleotides 1073-1113, 1043-1113, 1093-1133, 1093-1163, 1043-1163, 5376-5416, 5346-5416, 5396-5436, 5396-5416, 5396-5466, or 5346-5466 of SEQ ID NO:9. Such sequences and plants and seeds comprising these sequences therefore form one aspect of the invention.

[0013] A novel DNA molecule is provided that is a DNA transgene/genomic region SEQ ID NO:3 or the complement thereof, from soybean event MON89788. A soybean plant and seed comprising SEQ ID NO:3 in its genome is an aspect of this invention. SEQ ID NO:3 further comprises SEQ ID NO:1 in its entirety.

[0014] According to another aspect of the invention, a DNA molecule is provided that is a DNA transgene/genomic region SEQ ID NO:4, or the complement thereof, wherein this DNA molecule is novel in soybean event MON89788. A soybean plant and seed comprising SEQ ID NO:4 in its genome is an aspect of this invention. SEQ ID NO:4 further comprises SEQ ID NO:2 in its entirety.

[0015] According to another aspect of the invention, two nucleic acid molecules are provided for use in a DNA detection method, wherein the first nucleic acid molecule comprises at least 11 or more contiguous polynucleotides of any portion of the transgene region of the DNA molecule of SEQ ID NO:3 and the second nucleic acid is a molecule of similar length of any portion of a 5′ flanking soybean genomic DNA region of SEQ ID NO:3, wherein these nucleic acid molecules when used together are useful as primers in a DNA amplification method that produces an amplicon. The amplicon produced using these primers in the DNA amplification method is diagnostic for soybean event MON89788 DNA. The amplicon produced by the described primers that is homologous or complementary to a portion of SEQ ID NO:3 comprising SEQ ID NO:1 is an aspect of the invention.

[0016] According to another aspect of the invention, two nucleic acid molecules are provided for use in a DNA detection method, wherein the first nucleic acid molecule comprises at least 11 or more contiguous polynucleotides of any portion of the transgene region of the DNA molecule of SEQ ID NO:4 and a second nucleic acid molecule of similar length of any portion of a 3′ flanking soybean genomic DNA of SEQ ID NO:4, wherein these nucleic acid molecules when used together are useful as primers in a DNA amplification method that produces an amplicon. The amplicon produced using these primers in the DNA amplification method is diagnostic for soybean event MON89788 DNA. The amplicon produced by the described primers that is homologous or complementary to a portion of SEQ ID NO:4 comprising SEQ ID NO:2 is an aspect of the invention.

[0017] Any nucleic acid primer pair derived from SEQ ID NO:3 or SEQ ID NO:4, or SEQ ID NO:9 or the complements thereof, that when used in a DNA amplification reaction produces an amplicon diagnostic for soybean event MON89788-derived tissue, such as an amplicon that comprises SEQ ID NO:1 or SEQ ID NO:2 or any portion of SEQ ID NO:9 respectively, is another embodiment of the invention. In a particular embodiment, the primer pair may consist of primer A (SEQ ID NO:5) and primer D (SEQ ID NO:8).

[0018] Another aspect of the invention is a soybean plant, or seed, or product derived from a plant or seed comprising event MON89788, in which the genomic DNA when isolated from the soybean plant, or seed, or product produces an amplicon in a DNA amplification method that comprises SEQ ID NO:1 or SEQ ID NO:2.

[0019] Still another aspect of the invention is a soybean plant, or seed, or product derived from a plant or seed comprising MON89788, in which the genomic DNA when isolated from the soybean plant, or seed, or product produces an amplicon in a DNA amplification method, wherein DNA primer molecules SEQ ID NO:5 and SEQ ID NO:6 are used in the DNA amplification method.

[0020] Yet another aspect of the invention is a soybean plant, seed, product, or commodity derived from the plant or seed, comprising MON89788, in which the genomic DNA when isolated from the soybean plant, or seed, or product produces an amplicon in a DNA amplification method, wherein DNA primer molecules SEQ ID NO:7 and SEQ ID NO:8 are used in the DNA amplification method. The product or commodity may comprise, without limitation, a food or feed product comprising or derived from one or more of the following products of a soybean plant comprising event MON89788: lecithin, fatty acids, glycerol, sterol, edible oil, defatted soy flakes, soy meals including defatted and toasted soy meals, soy milk curd, tofu, soy flour, soy protein concentrate, isolated soy protein, hydrolyzed vegetable protein, textured soy protein, and soy protein fiber.

[0021] According to another aspect of the invention, a method of detecting the presence of DNA corresponding specifically to the soybean event MON89788 DNA in a sample is provided. Such method comprising: (a) contacting a sample comprising DNA with a DNA primer pair; (b) performing a nucleic acid amplification reaction, thereby producing the amplicon; and (c) detecting the amplicon, wherein said amplicon comprises SEQ ID NO:1 or SEQ ID NO:2. A kit comprising DNA primer molecules that when used in a DNA amplification method produces an amplicon comprising SEQ ID NO:1 or SEQ ID NO:2 is a further aspect of the invention.

[0022] According to another aspect of the invention, a method of detecting the presence of DNA corresponding specifically to the soybean event MON89788 DNA in a sample is provided. Such method comprising: (a) contacting a sample comprising DNA with a probe that hybridizes under stringent hybridization conditions with genomic DNA from soybean event MON89788 and does not hybridize under the stringent hybridization conditions with a control soybean plant DNA; (b) subjecting the sample and probe to stringent hybridization conditions; and (c) detecting hybridization of the probe to the soybean event MON89788 DNA, wherein said probe comprises SEQ ID NO:1 or SEQ ID NO:2. The sample may comprise a progeny seed, plant, or plant part comprising soybean event MON89788, or any of the following products derived from a plant comprising MON89788: lecithin, fatty acids, glycerol, sterol, edible oil, defatted soy flakes, soy meals including defatted and toasted soy meals, soy milk curd, tofu, soy flour, soy protein concentrate, isolated soy protein, hydrolyzed vegetable protein, textured soy protein, and soy protein fiber. A kit comprising a DNA probe comprising a DNA molecule that is homologous or complementary to SEQ ID NO:1 or SEQ ID NO:2 is an aspect of the invention. A kit comprising a DNA molecule comprising SEQ ID NO:18, SEQ ID NO:19, or SEQ ID NO:20, or their complements, is also an aspect of the invention.

[0023] According to another aspect of the invention, a method of producing a soybean plant that tolerates an application of glyphosate is provided that comprise the steps of: (a) sexually crossing a first parental glyphosate tolerant soybean plant comprising event MON89788, and a second parental soybean plant that lacks the glyphosate tolerance, thereby producing a plurality of progeny plants; and (b) selecting a progeny plant that tolerates application of glyphosate. Breeding methods may additionally comprise the steps of crossing the parental plant comprising soybean event MON89788 to a second parental soybean plant that is also tolerant to glyphosate and selecting for glyphosate tolerant progeny by molecular marker DNA genetically linked to the glyphosate tolerant phenotype found in each parent.

[0024] Another aspect of the invention is a method to control weeds in a field of soybean plants comprising MON89788, wherein said method comprises planting a field with soybean seed comprising event MON89788 said representative seed deposited as ATCC accession No. PTA-6708, allowing said seed to germinate and treating said plants with an effective dose of glyphosate to control weed growth in said field.

[0025] The foregoing and other aspects of the invention will become more apparent from the following detailed description and accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG. 1. Organization of the transgene insertion in the genome of a soybean plant comprising event MON89788.

[0027] FIG. 2A-2B. Processing of commodity products from soybean.

DETAILED DESCRIPTION

[0028] The present invention relates to a novel soybean transformation event designated MON89788 that provides glyphosate tolerance, and the plant parts and seed and products produced from plants, plant parts, seed, and products comprising the event. The invention provides DNA molecules that are novel in the genome of soybean cells comprising MON89788 and DNA molecules that can be used in various DNA detection methods to identify MON89788 DNA in a sample. The invention provides a method to control weeds in a field of plants containing MON89788 by treating the weeds in the field comprising plants comprising event MON89788 with a glyphosate herbicide.

[0029] The following definitions and methods are provided to better define the present invention and to guide those of ordinary skill in the art in the practice of the present invention. Unless otherwise noted, terms are to be understood according to conventional usage by those of ordinary skill in the relevant art. Definitions of common terms in molecular biology may also be found in Rieger et al. (1991) and Lewin (1994). The nomenclature for DNA bases as set forth at 37 CFR §1.822 is used.

[0030] As used herein, the term “soybean” means Glycine max and includes all plant varieties that can be bred with soybean.

[0031] As used herein, the term “comprising” means “including but not limited to”.

[0032] “Glyphosate” refers to N-phosphonomethylglycine and its salts, Glyphosate is the active ingredient of Roundup® herbicide (Monsanto Co.). Treatments with “glyphosate herbicide” refer to treatments with the Roundup®, Roundup Ultra®, Roundup Pro® herbicide or any other herbicide formulation containing glyphosate. Examples of commercial formulations of glyphosate include, without restriction, those sold by Monsanto Company as ROUNDUP®, ROUNDUP® ULTRA, ROUNDUP® ULTRAMAX, ROUNDUP® CT, ROUNDUP® EXTRA, ROUNDUP® BIACTIVE, ROUNDUP® BIOFORCE, RODEO®, POLARIS®, SPARK® and ACCORD® herbicides, all of which contain glyphosate as its isopropylammonium salt; ROUNDUP® WEATHERMAX (glyphosate potassium salt), those sold by Monsanto Company as ROUNDUP® DRY and RIVAL® herbicides, which contain glyphosate as its ammonium salt; that sold by Monsanto Company as ROUNDUP® GEOFORCE, which contains glyphosate as its sodium salt; and that sold by Syngenta Crop Protection as TOUCHDOWN® herbicide, which contains glyphosate as its trimethylsulfonium salt. Treatment of a field comprising glyphosate tolerant soybean plants comprising event MON89788 with any of these glyphosate herbicide formulations will control weed growth in the field and not affect the growth or yield of the soybean plants comprising MON89788.

[0033] A transgenic “event” is produced by transformation of plant cells with heterologous DNA, for example, a nucleic acid construct that includes a transgene of interest, regeneration of a population of plants resulting from the insertion of the transgene into the genome of the plant, and selection of a particular plant characterized by insertion into a particular genome location. The term “event” refers to the original transformant and progeny of the transformant that include the heterologous DNA. The term “event” also refers to progeny produced by a sexual outcross between the transformant and another variety that include the heterologous transgene DNA and the flanking genomic DNA. The term “event” also refers to DNA from the original transformant comprising the inserted DNA and flanking genomic sequence immediately adjacent to the inserted DNA that would be expected to be transferred to a progeny that receives inserted DNA including the transgene of interest as the result of a sexual cross of one parental line that includes the inserted DNA (for example, the original transformant and progeny resulting from the selling) and a parental line that does not contain the inserted DNA.

[0034] A glyphosate tolerant soybean plant can be bred by first sexually crossing a first parental soybean plant consisting of a soybean plant grown from a transgenic glyphosate tolerant soybean plant comprising MON89788 or an soybean plant that is a progeny of the cross of such a plant that expresses the glyphosate tolerant phenotype, and a second parental soybean plant that lacks the tolerance to glyphosate, thereby producing a plurality of first progeny plants; and then selecting a progeny plant that is tolerant to application of glyphosate herbicide. These steps can further include the back-crossing of the glyphosate tolerant progeny plant to the second parental soybean plant or a third parental soybean plant, then selecting progeny by application with glyphosate or by identification with molecular markers associated with the trait thereby producing an soybean plant that tolerates the application of glyphosate herbicide. Molecular markers may be used that comprise the junction DNA molecules identified at the 5′ and 3′ sites of insertion of the transgene in event MON89788.

[0035] It is also to be understood that two different transgenic plants can also be mated to produce offspring that contain two independently segregating, exogenous transgenes. Back-crossing to a parental plant and out-crossing with a non-transgenic plant as previously described is also contemplated, as is vegetative propagation. Descriptions of other breeding methods that are commonly used for different traits and crops can be found in one of several references, e.g., Fehr, (1987).

[0036] A “probe” is an isolated nucleic acid to which is attached a conventional detectable label or reporter molecule, for example, a radioactive isotope, a ligand, a chemiluminescent agent, or an enzyme. Such a probe is complementary to a strand of a target nucleic acid, in the case of the present invention, to a strand of genomic DNA from a soybean plant comprising event MON89788 whether from a soybean plant or seed or from a sample or extract of the plant or seed that includes DNA from the event. Probes according to the present invention include not only deoxyribonucleic or ribonucleic acids, but also polyamides and other probe materials that bind specifically to a target DNA sequence and can be used to detect the presence of that target DNA sequence.

[0037] “Primers” are isolated polynucleic acids that are annealed to a complementary target polynucleic acid strand by nucleic acid hybridization to form a hybrid between the primer and the target polynucleic acid strand, then extended along the target polynucleic acid strand by a polymerase, for example, a DNA polymerase. Primer pairs of the present invention refer to their use for amplification of a target polynucleic acid molecule, for example, by the polymerase chain reaction (PCR) or other conventional nucleic acid amplification methods.

[0038] Probes and primers are generally 11 polynucleotides or more in length, preferably 18 polynucleotides or more, more preferably 24 polynucleotides or 30 polynucleotides or more. Such probes and primers hybridize specifically to a target molecule under high stringency hybridization conditions. Preferably, probes and primers according to the present invention have complete sequence identity with the target molecule, although probes differing from the target sequence and that retain the ability to hybridize to target sequences under high stringency conditions may be designed by conventional methods.

[0039] Methods for preparing and using probes and primers are described, for example, in Sambrook et al. (1989); Ausubel et al. (1992); and Innis et al. (1990). PCR-primer pairs (a primer set) can be derived from a known sequence, for example, by using computer programs intended for that purpose such as Primer (Version 0.5, ©1991, Whitehead Institute for Biomedical Research, Cambridge, Mass.).

[0040] Primers and probes based on the flanking genomic DNA and insert sequences disclosed herein (SEQ ID NOs:1-4 and 9) can be used to confirm and, if necessary, to correct the disclosed sequences by conventional methods, for example, by isolating the corresponding DNA molecule from a deposit of seed comprising MON89788, and determining the nucleic acid sequence such molecules. Additional associated DNA molecules may be isolated from the genome of a cell comprising MON89788 that comprise the transgene insert and genomic flanking regions, and fragments of these molecules may be used as primers or probes.

[0041] The nucleic acid probes and primers of the present invention hybridize under stringent conditions to a target DNA sequence. Any conventional nucleic acid hybridization or amplification method can be used to identify the presence of DNA from the MON89788 event in a sample. Nucleic acid molecules or fragments thereof are capable of specifically hybridizing to other nucleic acid molecules under certain circumstances. As used herein, two nucleic acid molecules are said to be capable of specifically hybridizing to one another if the two molecules are capable of forming an anti-parallel, double-stranded nucleic acid structure and are of sufficient length to maintain this structure under high stringency conditions. A nucleic acid molecule is said to be the “complement” of another nucleic acid molecule if they exhibit complete complementarity. As used herein, molecules are said to exhibit “complete complementarity” when every nucleotide of one of the molecules is complementary to a nucleotide of the other. Two molecules are said to be “minimally complementary” if they can hybridize to one another with sufficient stability to permit them to remain annealed to one another under at least conventional “low-stringency” conditions. Similarly, the molecules are said to be “complementary” if they can hybridize to one another with sufficient stability to permit them to remain annealed to one another under conventional “high-stringency” conditions. Conventional stringency conditions are described by Sambrook et al., 1989, and by Haymes et al. (1985). Departures from complete complementarity are therefore permissible, as long as such departures do not completely preclude the capacity of the molecules to form a double-stranded structure. In order for a nucleic acid molecule to serve as a primer or probe it need only be sufficiently complementary in sequence to be able to form a stable double-stranded structure under the particular solvent and salt concentrations employed.

[0042] As used herein, a substantially homologous sequence is a nucleic acid sequence that will specifically hybridize to the complement of the nucleic acid sequence to which it is being compared under high stringency conditions. Appropriate stringency conditions which promote DNA hybridization, for example, 6.0× sodium chloride/sodium citrate (SSC) at about 45° C., followed by a wash of 2.0×SSC at 50° C., are known to those skilled in the art or can be found in Current Protocols in Molecular Biology, John Wiley & Sons, N.Y. (1989), 6.3.1-6.3.6. For example, the salt concentration in the wash step can be selected from a low stringency of about 2.0×SSC at 50° C. to a high stringency of about 0.2×SSC at 50° C. In addition, the temperature in the wash step can be increased from low stringency conditions at room temperature, about 22° C., to high stringency conditions at about 65° C. Both temperature and salt may be varied, or either the temperature or the salt concentration may be held constant while the other variable is changed. In a preferred embodiment, a nucleic acid of the present invention will specifically hybridize to one or more of the nucleic acid molecules set forth in SEQ ID NOs:1-4, and 9 complements thereof or fragments of either under moderately stringent conditions, for example at about 2.0×SSC and about 65° C. In a particularly preferred embodiment, a nucleic acid of the present invention will specifically hybridize to one or more of the nucleic acid molecules set forth in SEQ ID NOs:1-4, and 9 complements thereof or fragments of either under high stringency conditions. In one aspect of the present invention, a preferred marker nucleic acid molecule of the present invention comprises the nucleic acid sequence as set forth in SEQ ID NO:1 or SEQ ID NO:2 or complements thereof or fragments of either. In another aspect of the present invention, a preferred marker nucleic acid molecule of the present invention shares between 80% and 100% or 90% and 100% sequence identity with the nucleic acid sequence set forth in SEQ ID NO:1 or SEQ ID NO:2 or complements thereof or fragments of either. Molecular marker DNA molecules that comprise SEQ ID NO:1, or SEQ ID NO:2, or complements thereof or fragments of either may be used as markers in plant breeding methods to identify the progeny of genetic crosses similar to the methods described for simple sequence repeat DNA marker analysis, in Cregan et al. (1997); all of which is herein incorporated by reference in its' entirely. The hybridization of the probe to the target DNA molecule can be detected by any number of methods known to those skilled in the art, these can include, but are not limited to, fluorescent tags, radioactive tags, antibody based tags, and chemiluminescent tags.

[0043] Regarding the amplification of a target nucleic acid sequence (for example, by PCR) using a particular amplification primer pair, “stringent conditions” are conditions that permit the primer pair to hybridize only to the target nucleic-acid sequence to which a primer having the corresponding wild-type sequence (or its complement) would bind and preferably to produce a unique amplification product, the amplicon, in a DNA thermal amplification reaction.

[0044] The term “specific for (a target sequence)” indicates that a probe or primer hybridizes under stringent hybridization conditions only to the target sequence in a sample comprising the target sequence.

[0045] As used herein, “amplified DNA” or “amplicon” refers to the product of nucleic acid amplification of a target nucleic acid sequence that is part of a nucleic acid template. For example, to determine whether the soybean plant resulting from a sexual cross contains transgenic event MON89788 or whether a soybean sample collected from a field comprises MON89788, or a soybean extract, such as a meal, flour or oil comprises MON89788. DNA extracted from a soybean plant tissue sample or extract may be subjected to a nucleic acid amplification method using a primer pair that includes a primer derived from the genomic region adjacent to the insertion site of inserted heterologous transgene DNA, and a second primer derived from the inserted heterologous transgene DNA to produce an amplicon that is diagnostic for the presence of the event DNA. The amplicon is of a length and has a sequence that is also diagnostic for the event. The amplicon may range in length from the combined length of the primer pairs plus one nucleotide base pair, or plus about fifty nucleotide base pairs, or plus about two hundred-fifty nucleotide base pairs, or plus about three hundred-fifty nucleotide base pairs or more.

[0046] Alternatively, a primer pair can be derived from flanking genomic sequence on both sides of the inserted DNA so as to produce an amplicon that includes the entire insert nucleotide sequence. A member of a primer pair derived from the plant genomic sequence may be located a distance from the inserted transgene DNA molecule, this distance can range from one nucleotide base pair up to about twenty thousand nucleotide base pairs. The use of the term “amplicon” specifically excludes primer dimers that may be formed in the DNA thermal amplification reaction.

[0047] Nucleic acid amplification can be accomplished by any of the various nucleic acid amplification reaction methods known in the art, including the polymerase chain reaction (PCR). A variety of amplification methods are known in the art and are described, inter alia, in U.S. Pat. Nos. 4,683,195 and 4,683,202 and in Innis et al. (1990). PCR amplification methods have been developed to amplify up to 22 kb of genomic DNA and up to 42 kb of bacteriophage DNA (Cheng et al., 1994). These methods as well as other methods known in the art of DNA amplification may be used in the practice of the present invention. The sequence of the heterologous DNA insert or flanking sequence from soybean event MON89788 and can be verified, and corrected if necessary by amplifying such molecules from the event genome using primers derived from the sequences provided herein followed by standard DNA sequencing methods applied to the PCR amplicon or to isolated cloned transgene/genomic DNA.

[0048] The amplicon produced by these methods may be detected by a plurality of techniques. One such method is Genetic Bit Analysis (Nikiforov, et al., 1994) where an DNA oligonucleotide is designed which overlaps both the adjacent flanking genomic DNA sequence and the inserted DNA transgene sequence. The oligonucleotide is immobilized in wells of a microwell plate. Following PCR of the region of interest (using one primer in the inserted sequence and one in the adjacent flanking genomic sequence), a single-stranded PCR product can be hybridized to the immobilized oligonucleotide and serve as a template for a single base extension reaction using a DNA polymerase and labelled ddNTPs specific for the expected next base. Readout may be fluorescent or ELISA-based. A signal indicates presence of the insert/flanking genomic sequence due to successful amplification, hybridization, and single base extension.

[0049] Another method is the Pyrosequencing technique as described by Winge (2000). In this method an oligonucleotide is designed that overlaps the adjacent genomic DNA and insert DNA junction. The oligonucleotide is hybridized to single-stranded PCR product from the region of interest (one primer in the inserted sequence and one in the flanking genomic sequence) and incubated in the presence of a DNA polymerase, ATP, sulfurylase, luciferase, apyrase, adenosine 5′ phosphosulfate and luciferin. DNTPs are added individually and the incorporation results in a light signal which is measured. A light signal indicates the presence of the transgene insert/flanking sequence due to successful amplification, hybridization, and single or multi-base extension.

[0050] Fluorescence Polarization as described by Chen et al. (1999) is a method that can be used to detect the amplicon of the present invention. Using this method an oligonucleotide is designed which overlaps the genomic flanking and inserted DNA junction. The oligonucleotide is hybridized to single-stranded PCR product from the region of interest (one primer in the inserted DNA and one in the flanking genomic DNA sequence) and incubated in the presence of a DNA polymerase and a fluorescent-labeled ddNTP. Single base extension results in incorporation of the ddNTP. Incorporation can be measured as a change in polarization using a fluorometer. A change in polarization indicates the presence of the transgene insert/flanking genomic sequence due to successful amplification, hybridization, and single base extension.

[0051] Taqman® (PE Applied Biosystems, Foster City, Calif.) is described as a method of detecting and quantifying the presence of a DNA sequence and is fully understood in the instructions provided by the manufacturer. Briefly, a FRET oligonucleotide probe is designed which overlaps the genomic flanking and insert DNA junction. The FRET probe and PCR primers (one primer in the insert DNA sequence and one in the flanking genomic sequence) are cycled in the presence of a thermostable polymerase and dNTPs. Hybridization of the FRET probe results in cleavage and release of the fluorescent moiety away from the quenching moiety on the FRET probe. A fluorescent signal indicates the presence of the flanking genomic/transgene insert sequence due to successful amplification and hybridization.

[0052] Molecular Beacons have been described for use in sequence detection as described in Tyangi et al. (1996) Briefly, a FRET oligonucleotide probe is designed that overlaps the flanking genomic and insert DNA junction. The unique structure of the FRET probe results in it containing secondary structure that keeps the fluorescent and quenching moieties in close proximity. The FRET probe and PCR primers (one primer in the insert DNA sequence and one in the flanking genomic sequence) are cycled in the presence of a thermostable polymerase and dNTPs. Following successful PCR amplification, hybridization of the FRET probe to the target sequence results in the removal of the probe secondary structure and spatial separation of the fluorescent and quenching moieties. A fluorescent signal results. A fluorescent signal indicates the presence of the flanking genomic/transgene insert sequence due to successful amplification and hybridization.

[0053] Other described methods, such as, microfluidics (US Patent Pub. 2006068398, U.S. Pat. No. 6,544,734) provide methods and devices to separate and amplify DNA samples. Optical dyes used to detect and quantitate specific DNA molecules (WO/05017181). Nanotube devices (WO/06024023) that comprise an electronic sensor for the detection of DNA molecules or nanobeads that bind specific DNA molecules and can then be detected are useful for detecting DNA molecules of the present invention.

[0054] DNA detection kits can be developed using the compositions disclosed herein and the methods described or known in the art of DNA detection. The kits are useful for the identification of soybean event DNA in a sample and can be applied to methods for breeding soybean plants containing DNA. The kits may contain DNA primers or probes that are homologous or complementary to SEQ ID NOs:1-4 and 9 or DNA primers or probes homologous or complementary to DNA contained in the transgene genetic elements of DNA, these DNA sequences can be used in DNA amplification reactions or as probes in a DNA hybridization method. The structure of the DNA of the transgene genetic elements contained in the soybean genome and illustrated in FIG. 1 comprises a 5′ genomic region of the soybean A3244 genome flanking the transgene insert, the insert comprising a portion of the right border region (RB) from Agrobacterium tumefaciens, the chimeric promoter FMV/Tsf1 and related linked elements (U.S. Pat. No. 6,660,911; also referred to as FMV/E1F1α) is operably connected to an Arabidopsis EPSPS chloroplast transit peptide coding sequence (herein referred to as CTP2 or TS-AtEPSPS CTP2, U.S. Pat. No. 5,633,435, operably connected to a glyphosate resistant EPSPS (herein referred to as CP4 EPSPS or aroA:CP4, isolated from Agrobacterium tumefaciens strain CP4 and coding sequence modified for enhanced expression in plant cells, U.S. Pat. No. 5,633,435), operably connected to the 3′ termination, region from pea ribulose 1,5-bisphosphate carboxylase (herein referred to as E9 3′ or T-Ps.RbcS:E9, Coruzzi et al., (1984), a portion of the left border (LB) region from Agrobacterium tumefaciens, and the 3′ genomic region of the soybean A3244 genome flanking the transgene insert. DNA molecules useful as primers in DNA amplification methods can be derived from the sequences of the genetic elements of the transgene insert contained in soybean event MON89788. These primer molecules can be used as part of a primer set that also includes a DNA primer molecule derived from the genome of soybean flanking the transgene insert. Soybean event MON89788 was produced by transformation of soybean line A3244 (U.S. Pat. No. 5,659,114) by an Agrobacterium mediated method, for example, methods described in U.S. Pat. Nos. 6,384,301 and 7,002,058 (herein incorporated by reference in their entirety).

[0055] The inventors of the present invention have discovered that a soybean line comprising the MON89788 T-type genomic region (T-type is combination of a transgene and the associated haplotype region of a plant genome) in its genome has an improved yield relative to a line comprising the previous 40-3-2 T-type genomic region. This was demonstrated in replicated field trials including yield data collected from multiple locations in the United States (U.S. patent application Ser. No. 60/685,584).

[0056] The following examples are included to demonstrate examples of certain preferred embodiments of the invention. It should be appreciated by those of skill in the art that the techniques disclosed in the examples that follow represent approaches the inventors have found function well in the practice of the invention, and thus can be considered to constitute examples of preferred modes for its practice. However, those of skill in the art should, in light of the present disclosure, appreciate that many changes can be made in the specific embodiments that are disclosed and still obtain a like or similar result without departing from the spirit and scope of the invention.

EXAMPLES

Example 1

Production of Amplicon Diagnostic for MON89788 Genomic DNA

[0057] DNA from transgenic soybean event MON89788 is extracted from tissue comprising soybean seeds, vegetative tissue, or meal. The DNA is isolated from the tissue using Qiagen's DNeasy Plant Miniprep Kit according to the manufacturer's instructions (Qiagen Corp. Valencia, Calif.).

[0058] A PCR product is produced that comprises a portion of the genomic DNA flanking the 5′ end of the T-DNA (transfer DNA comprising the transgene) insertion in the genome of a plant comprising MON89788. This DNA product comprises SEQ ID NO:3. The PCR may be performed using one primer designed to hybridize to the genomic DNA sequences flanking the 5′ end of the transgene insert (DNA primer A, SEQ ID NO:5; see FIG. 1) paired with a second primer (DNA primer B, SEQ ID NO:6) located in the transgene promoter region (U.S. Pat. No. 6,660,911, SEQ ID NO:28, herein incorporated by reference and found within SEQ ID NO:9).

[0059] A PCR product is produced from the 3′ end of the transgene insert that comprises a portion of the genomic DNA flanking the 3′ end of the T-DNA insertion in the genome of a plant comprising MON89788 This DNA product comprises SEQ ID NO:4. PCR may be performed using one primer designed to hybridize to the genomic DNA sequences flanking the 3′ end of the insert of each event (DNA primer D, SEQ ID NO:8) and paired with a second primer (DNA primer C, SEQ ID NO:7) located in the T-Ps.RbcS:E9 3′ transcription termination sequence at the 3′ end of the insert.

[0060] The PCR template includes ˜50 ng of genomic DNA. As a negative control ˜50 ng of genomic DNA from the non-transgenic soybean cultivar is utilized. Each PCR reaction contains 5 μl 10× Buffer for REDAccuTaq™ LA DNA Polymerase Mix (Sigma-Aldrich, St Louis, Mo.), 200 μM each dNTP (Sigma-Aldrich), 0.4 μM each primer, and 2.5 Units JumpStart™ REDTaq™ DNA Polymerase (Sigma-Aldrich) in a 50 μl total volume reaction. The PCR reactions are performed under the following cycling conditions: 1 cycle at 94° C. for 3 minutes (min); 32 or 35 cycles at 94° C. for 30 seconds (s), 58° C. for 30 s, 72° C. for 30 s or 1 min; 1 cycle at 72° C. for 10 min.

[0061] DNA event primer pairs are used to produce an amplicon diagnostic for MON89788 genomic DNA. These event primer pairs include, but are not limited to primers A and B (SEQ ID NO:5 and 6) and event primer pairs C and D (SEQ ID NO: 7 and 8), that are used in the described DNA amplification method. In addition to these primer pairs, any primer pair derived from SEQ ID NO:3 or SEQ ID NO:4, or the complements thereof, that when used in a DNA amplification reaction produces an amplicon that comprises SEQ ID NO:1 or SEQ ID NO:2 diagnostic for soybean MON89788 event-derived tissue, respectively, may be utilized. DNA amplification conditions illustrated in Table 1 and Table 2 can be used to produce a diagnostic amplicon for MON89788 using the appropriate event primer pairs. Any modification of these methods used to produce an amplicon diagnostic for MON89788 is within the ordinary skill of the art. An extract putatively containing DNA of a soybean plant or seed comprising MON89788, or a product derived from a plant comprising MON89788 that when tested in a DNA amplification method produces an amplicon diagnostic for soybean event MON89788 may be utilized as a template for amplification to determine whether MON89788 is present.

[0062] The amplicon is produced by the use of at least one primer sequence derived from SEQ ID NO:3 or SEQ ID NO:4 that when used in a PCR method produces a diagnostic amplicon for event MON89788. For example, the production of the MON89788 amplicons can be performed using a Stratagene Robocycler, MJ Engine, Perkin-Elmer 9700, or Eppendorf Mastercycler Gradient thermocycler as shown in Table 2, or by methods and apparatus known to those skilled in the art.

[0063]

TABLE 1

PCR procedure and reaction mixture conditions for the identification
of soybean MON89788 5′ transgene insert/genomic junction region.
Step	Reagent	Amount	Comments

1	Nuclease-free water	add to final volume of 20 μl	—
2	10X reaction buffer	2.0 μl	1X final
	(with MgCl₂)		concentration of
			buffer, 1.5 mM final
			concentration of
			MgCl₂
3	10 mM solution of dATP,	0.4 μl	200 μM final
	dCTP, dGTP, and dTTP		concentration of each
			dNTP
4	Event primer A (SEQ ID NO: 5	0.2 μl	0.1 μM final
	resuspended in 1X TE buffer or		concentration
	nuclease-free water to a
	concentration of 10 μM)
5	Event primer B (SEQ ID NO: 6	0.2 μl	0.1 μM final
	resuspended in 1X TE buffer or		concentration
	nuclease-free water to a
	concentration of 10 μM)
6	RNase, DNase free (500 μg/ml)	0.1 μl	50 ng/reaction
7	REDTaq DNA polymerase	1.0 μl (recommended to switch	1 unit/reaction
	(1 unit/μl)	pipets prior to next step)
8	Extracted DNA (template):		—
	Samples to be analyzed:
	individual leaves	10-200 ng of genomic DNA
	pooled leaves	200 ng of genomic DNA
	(maximum
	of 10 leaves/pool)
	Negative control	50 ng of non-transgenic
	soybean genomic DNA
	Negative control	no template DNA (solution in
	which DNA was resuspended)
	Positive control	50 ng of soybean genomic
	DNA comprising MON89788

[0064] Gently mix and, if needed (no hot top on thermocycler), add 1-2 drops of mineral oil on top of each reaction. Proceed with the PCR in a Stratagene Robocycler (Stratagene, La Jolla, Calif.), MJ Engine (MJR-Biorad, Hercules, Calif.), Perkin-Elmer 9700 (Perkin Elmer, Boston, Mass.), or Eppendorf Mastercycler Gradient (Eppendorf, Hamburg, Germany) thermocycler using the following cycling parameters (Table 2). The MJ Engine or Eppendorf Mastercycler Gradient thermocycler should be run in the calculated mode. Run the Perkin-Elmer 9700 thermocycler with the ramp speed set at maximum.

[0065]

TABLE 2

Thermocycler conditions


Cycle No.	Settings: Stratagene Robocycler

1	94° C. 3 minutes
34	94° C. 1 minute
	64° C. 1 minute
	72° C. 1 minute and 30 seconds
1	72° C. 10 minutes

Cycle No.	Settings: MJ Engine or Perkin-Elmer 9700

1	94° C. 3 minutes
34	94° C. 30 seconds
	64° C. 30 seconds
	72° C. 1 minute
1	72° C. 10 minutes

Cycle No.	Settings: Eppendorf Mastercycler Gradient

1	94° C. 3 minutes
34	94° C. 15 seconds
	64° C. 15 seconds
	72° C. 1 minute
1	72° C. 10 minutes

Example 2

Sequence Determination of Transgene/Genomic Region and Southern Analysis

[0066] DNA sequencing of the PCR products provides for DNA that can be used to design additional DNA molecules as primers and probes for the identification of soybean plants or seed comprising MON89788. PCR products of the expected sizes representing the 5′ and 3′ transgene/genomic sequences were isolated by separation of the PCR products on a 2.0% agarose gel by electrophoresis. PCR products are isolated that include the 5′ and 3′ DNA regions that span the insert junction between the transgene insertion into the soybean genome. The 5′ and 3′ PCR products for MON89788 are purified by agarose gel electrophoresis followed by isolation from the agarose matrix using the QIAquick Gel Extraction Kit (catalog #28704, Qiagen Inc., Valencia, Calif.). The purified PCR products are then sequenced (e.g. ABI Prism™ 377, PE Biosystems, Foster City, Calif.) and analyzed (e.g. DNASTAR sequence analysis software, DNASTAR Inc., Madison, Wis.).

[0067] A DNA sequence was determined for the nucleotide base pair segment representing the transgene/genomic region of event MON89788 as illustrated in FIG. 1 and identified as SEQ ID NO:9. The genomic and transgene elements that are contained in SEQ ID NO:9 are described in Table 3. The 5′ and 3′ flanking regions are included in SEQ ID NO:9 and given in SEQ ID NOs:21 and 22.

[0068] The junction sequences are relatively short polynucleotide molecules that are novel DNA sequences and are diagnostic for MON89788 DNA when detected in a polynucleic acid detection assay. The junction sequences in SEQ ID NO:1 and SEQ ID NO:2 represent 10 polynucleotides on each side of an insertion site of the transgene fragment and soybean genomic DNA in MON89788. Longer or shorter polynucleotide junction sequences can be selected from SEQ ID NO:3 or SEQ ID NO:4. The junction molecules (5′ junction region SEQ ID NO:1, and 3′ junction region SEQ ID NO:2) are useful as DNA probes or as DNA primer molecules in methods for DNA detection.

[0069] Primers and probes used in a Taqman® method (Roche Molecular Systems, Inc., Pleasanton, Calif.) for detection of an event specific DNA molecule were developed for event MON89788. The primer molecules are referred to as SQ2824 (SEQ ID NO:10), SQ2826 (SEQ ID NO:11), SQ1141 (SEQ ID NO:12), SQ1142 (SEQ ID NO:13), SQ5543 (SEQ ID NO:14) and the probe molecules are referred to as PB871-6FAM (SEQ ID NO:15), PB2191-VIC (SEQ ID NO:16), and PB57-VIC (SEQ ID NO:17). The primers and probes were used in the Taqman® method according to manufacturers instructions to provide a diagnostic amplicon for DNA comprising MON89788. Soybean tissues including processed products, for example meal, are useful sources of DNA for this method. Additional primers used to produce an amplicon from soymeal include SEQ ID NOs:18-20.

[0070]

TABLE 3

Genome and genetic element annotation of the transgene/genomic DNA fragment
(SEQ ID NO: 9) contained in the genome of soybean comprising MON89788.
	Location in
Genetic Element¹	Sequence²	Function (Reference)

Sequence flanking 5′	1-1103	SOYBEAN GENOMIC DNA
end of the insert
5′Junction region	1093-1113	DNA region spanning the transgene insertion
B³-Right Border	1104-1145	DNA region from Agrobacterium tumefaciens
		containing the right border sequence used for transfer
		of the T-DNA (Depicker et al., 1982)
Intervening Sequence	1146-1215	Sequences used in DNA cloning
P⁴-FMV/Tsf1	1216-2255	Chimeric promoter consisting of enhancer sequences
		from the 35S promoter of the Figwort Mosaic virus
		(Richins et al., 1987) and the promoter from the Tsf1
		gene of Arabidopsis thaliana (encoding elongation
		factor EF-1alpha (Axelos, et al., 1989)
L⁵-Tsf1	2256-2301	5′ nontranslated leader (exon 1) from the
		Tsf1 gene of Arabidopsis thaliana encoding
		elongation factor EF-1 alpha (Axelos et al., 1989)
I⁶-Tsf1	2302-2923	Intron from the Tsf1 gene of Arabidopsis thaliana
		encoding elongation factor EF-1 alpha (Axelos et al.,
		1989)
Intervening Sequence	2924-2932	SEQUENCES USED IN DNA CLONING
TS⁷-CTP2	2933-3160	Sequences encoding the chloroplast transit peptide
		from the ShkG gene of Arabidopsis thaliana encoding
		EPSPS (Klee et al., 1987)
CS⁸-cp4 epsps	3161-4528	Codon optimized coding sequence of the aroA gene
		from the Agrobacterium sp. strain CP4 encoding the
		CP4 EPSPS protein (Padgette et al., 1996; Barry et
		al., 1997)
Intervening Sequence	4529-4570	Sequences used in DNA cloning
T⁹-E9	4571-5213	3′ nontranslated sequence from the RbcS2 gene of
		Pisum sativum encoding the Rubisco small subunit
		(Coruzzi et al., 1984)
Intervening Sequence	5214-5256	Sequences used in DNA cloning
B-Left Border	5257-5406	DNA region from Agrobacterium tumefaciens
		containing the left border sequence used for transfer
		of the T-DNA (Barker et al., 1983)
3′ junction region	5396-5416	DNA region spanning the transgene insertion
Sequence flanking 3′	5407-6466	Soybean genomic DNA
end of the insert

Southern Blot Analysis

[0071] Genomic DNA from a plant comprising MON89788 and control soybean genomic DNA (˜15 μg of each) is digested with various restriction enzymes (140 U) in a total volume of 150 μl including 15 μl of the corresponding manufacturer's buffer (NEB, Beverly, Mass.). Restriction endonucleases, e.g., Bgl11, BamH1, Nco1, Hind111, and Bcl1, are used in the Southern analysis of MON89788. Endonuclease digests are performed at the appropriate temperature for at least 6 hours. After incubating, the DNA is precipitated with 3M sodium acetate and 2.5 volumes of ethanol. Subsequently, the DNA is washed with 70% ethanol, dried, and resuspended in 40 μl of TBE. Loading buffer (0.2×) is added to the samples and then subjected to electrophoresis on agarose gels (0.8%) for 16-18 hours at 30 volts. The gels are stained with ethidium-bromide, then treated with a depurination solution (0.125N HCL) for 10 minutes, with a denaturing solution (0.5M sodium hydroxide, 1.5M sodium chloride) for 30 minutes, and finally with a neutralizing solution (0.5M Trizma base, 1.5M sodium chloride) for 30 minutes. The DNA is transferred to Hybond-N membrane (Amersham Pharmacia Biotech, Buckingamshire, England) using a Turboblotter (Schleicher and Schuell, Dassel, Germany) for 4-6 hours and then fixed to the membrane using a UV light.

[0072] Membranes are prehybridized with 20 mls of DIG Easy Hyb solution (Roche Molecular Biochemicals, Indianapolis, Ind.; cat. #1603558) for 2-4 hours at 45° C. Radioactive DNA probes (³²P dCTP) homologous or complementary to SEQ ID NO:1, or SEQ ID NO:2, or SEQ ID NO:3, or SEQ ID NO:4, or a portion thereof are made using a Radprime DNA Labeling kit (Invitrogen, Carlsbad, Calif.; cat. #18428-011). Unincorporated nucleotides are removed using SEPHADEX G-50 columns (Invitrogen). The prehybridization solution is replaced with 10 mls of pre-warmed DIG Easy Hyb solution containing the denatured probe to a final concentration of 1 million counts per ml. The blots are hybridized at 45° C. for 16-18 hours.

[0073] Blots are washed with a low stringency solution (5×SSC, 0.1×SDS) at 45° C. and then repeatedly washed with a higher stringency solution (0.1×SSC, 0.1% SDS) at 65° C. The blots are exposed to a phosphor screen (Amersham Biosciences, Piscataway, N.J.) for >2 hours and the exposure read using a Data Storm 860 machine (Amersham Biosciences). These methods and conditions exemplified may be modified by those skilled in the art of detecting DNA in a sample.

Example 3

Weed Control

[0074] Controlling the growth of weeds in a field of soybeans comprising MON89788. A field is planted with soybean seeds comprising MON89788, the seeds are allowed to germinate into plants and the field of plants is treated with a herbicide formulation containing glyphosate. An effective dose of a glyphosate formulation at treatment rates of from about 0.25 lb ae/A (pounds of glyphosate acid equivalent/acre) to 3 or more lb ae/A is applied to the field. Rates often applied range from about 0.75 lb ae/A to 1.5 lb ae/A at a frequency of one or more treatments during the growing season as necessary to control the growth of weeds in a field. Seeds from the plants comprising MON89788 are harvested from the treated plants.

[0075] A deposit of the Monsanto Technology LLC, soybean seed representative of event MON89788 disclosed above and recited in the claims has been made under the Budapest Treaty with the American Type Culture Collection (ATCC), 10801 University Boulevard, Manassas, Va. 20110. The ATCC accession number for the deposit comprising event MON89788 (also known as MON19788 or GM_A19788) is PTA-6708, deposited May 11, 2005. The deposit will be maintained in the depository for a period of 30 years, or 5 years after the last request, or for the effective life of the patent, whichever is longer, and will be replaced as necessary during that period.

[0076] Having illustrated and described the principles of the present invention, it should be apparent to persons skilled in the art that the invention can be modified in arrangement and detail without departing from such principles. We claim all modifications that are within the spirit and scope of the appended claims.

[0077] All publications and published patent documents cited in this specification are incorporated herein by reference to the same extent as if each individual publication or patent application was specifically and individually indicated to be incorporated by reference.

REFERENCES

[0078] The following references, to the extent that they provide exemplary procedural or other details supplementary to those set forth herein, are specifically incorporated herein by reference.

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Claims

What is claimed:

1. A transgenic soybean plant, seed, or plant part comprising a DNA molecule comprising SEQ ID NO: 3 flanking a glyphosate tolerant 5-enolpyruvyl-3-physphoshikimate synthase (EPSPS) coding sequence.

2. The transgenic soybean plant, seed, or plant part of claim 1, further defined as a soybean plant.

3. The transgenic soybean plant, seed, or plant part of claim 1, further defined as a soybean seed.

4. The transgenic soybean plant, seed, or plant part of claim 1, further defined as a soybean plant part.

5. A transgenic soybean plant, seed, or plant part comprising a DNA molecule comprising SEQ ID NO: 4 flanking a glyphosate tolerant 5-enolpyruvyl-3-physphoshikimate synthase (EPSPS) coding sequence.

6. The transgenic soybean plant, seed, or plant part of claim 5, further defined as a soybean plant.

7. The transgenic soybean plant, seed, or plant part of claim 5, further defined as a soybean seed.

8. The transgenic soybean plant, seed, or plant part of claim 5, further defined as a soybean plant part.

9. A transgenic soybean plant, seed, or plant part comprising a DNA molecule comprising SEQ ID NO: 9.

10. The transgenic soybean plant, seed, or plant part of claim 9, further defined as a soybean plant.

11. The transgenic soybean plant, seed, or plant part of claim 9, further defined as a soybean seed.

12. The transgenic soybean plant, seed, or plant part of claim 9, further defined as a soybean plant part.

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