SUCROSE TRANSPORTER GENES FOR INCREASING PLANT SEED LIPIDS

• Main Authors: YOO BYUNGUN, EVERARD JOHN D, ALLEN STEPHEN M, MEYER KNUT, DAMUDE HOWARD GLENN
• Format: Patent
• Language: English
• Published: 26.05.2011
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS OR TEST PAPERS THEREFOR; COMPOSITIONS THEREOF; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL ORENZYMOLOGICAL PROCESSES; CULTURE MEDIA; DERIVATIVES THEREOF; ENZYMOLOGY; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEICACIDS OR MICROORGANISMS; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; NEW PLANTS OR PROCESSES FOR OBTAINING THEM; NUCLEIC ACIDS; NUCLEOSIDES; NUCLEOTIDES; ORGANIC CHEMISTRY; PEPTIDES; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES; PROCESSES OF PREPARING SUCH COMPOSITIONS; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; SUGARS; TRAPPING; VINEGAR; WINE

This invention relates to polynucleotide sequences encoding SUT2 or SUT4 sucrose transporter genes. Methods for increasing seed oil content and evaluating increased oil content in a plant seed are described. The compositions and methods disclosed herein employ a variety of sequences that encode sucrose transporters and a variety of sequences that influence fatty acid accumulation, including for example, DGAT, Lec1 and ODP1 transcription factor. In specific embodiments, overexpression of SUT2 and/or SUT4 sucrose transporters in combination with DGAT genes further increase plant seed oil production compared to a high oil plant comprising recombinant DNA constructs that do not overexpress SUT2 or SUT4 transporters.