CYTOPLASMIC MALE STERILE SOYBEAN AND METHOD FOR PRODUCING SOYBEAN HYBRIDS

摘要

This invention provides a cytoplasmic male sterile (CMS) line and method for producing soybean hybrids, which is characterized in that its sterility was affected by controlling a nuclear restore gene. A cytoplasmic male sterile soybean is provided; the CMS soybean can restore its male fertility by introducing a locus in the nuclear restore gene site. The maintenance of the soybean CMS line is performed by cross with a male fertile allelic line containing fertile cytoplasmic gene and its nuclear restore gene site is a recessive locus. Soybean hybrids can be produced by using CMS line as female parent and hybridising with a male sterile restoring line, the nuclear restore gene site is a dominant locus. Sowing the seeds collected from the female parent, the male fertile F1 plant can be produced.