MODIFICATION OF SUCROSE SYNTHASE GENE EXPRESSION IN PLANT TISSUE AND USES THEREOF

摘要

The invention relates to the field of plant genetic engineering. More particularly, the current invention solves the problem of modifying the quality, particularly the length, of fibers in fiber-producing plants, such as cotton. To achieve this goal, chimeric genes are introduced into the cell of the plants, whereby the chimeric gene comprises the following operably linked fragments: i) a plant operable promoter ii) a coding region which when transcribed yields an RNA said RNA being capable of being translated into an active sucrose synthase protein; and iii) transcription termination and polyadenylation signals that function in plant cells. The coding region may comprise a nucleotide sequence having at least 70% identity to a sequence encoding the polypeptide of SEQ ID NO: 2 as follows: MAERALTRVHSLRERLDETLLAHRNEILALLSRIEGKGKGILQHHQIILEFEAIP EENRKKLANGAFFEVLKASQEAIVLPPWVALAVRPRPGVWEYIRVNVHALVVE ELTVAEYLHFKEELVDGSSNGNFVLELDFEPFNSSFPRPTLSKSIGNGVEFLNR HLSAKLFHDKESMHPLLEFLRVHCHKGKNMMLNDRIQNLNALOHVLRKAEE YLGTLPPETPCAEFEHRFQEIGLERGWGDTAERVLEMIQLLLDLLEATDPCTLE KFLGRIPMVFNWILTPHGYFAQDNVLGYPDTGGQWYILDQVRALENEMLLRI KQQGLNITPRILIITRLLPDAVGTTCGQRLEKVYGTEHSDILRVPFRTEKGIVRK WISRFEICVWPYLETYTEDVAHEISKELHGTPDLIIGNXSDGNIVASLLAHKLGV TQCTIAHALEKTKYPDSDIYWKKLEDKYHFSCQFTADLFAMNHTDFIITSTFQEI AGSKDTVGQYESHTAFTLPGLYRWHGIDVFDPKFNIVSPGADMEIYFPYTEEK RRLKHFHPEIEDLLYTKVENEEHLCVLNDRNKPILFTMPRLDRVKNLTGLVEW CGKNPKLRELANLVWGGDRRKESKDLEEKAEMKKMFELIDKYNLNGQFRWI SSQMNRIRNVELYRYICDTKGAFVQPALYEAFGLTWEAMTCGLPTFATCNGG PAEIIVHGKSGFNIDPYHGDQAADILVDFFEKCKKDPSHWDKISQGGLKRIEEK YTWKIYSERLLTLTGVYGFWKHVSNLERRESRRYLEMFYALKYRKLAESVPLAE E