A - Human Necessities – 01 – H
Patent
A - Human Necessities
01
H
A01H 5/00 (2006.01) A01H 1/02 (2006.01) A01H 5/10 (2006.01)
Patent
CA 2262513
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.
L'invention concerne une lignée androstérile cytoplasmique et un procédé de production de soja hybride. La lignée est caractérisée en ce que sa stérilité a été modifiée par l'action sur un gène nucléaire de restauration. On peut restaurer la fertilité mâle du soja androstérile cytoplasmique mâle en introduisant un locus dans le site dudit gène nucléaire de restauration. On a pu conserver la lignée de soja androstérile cytoplasmique en le croisant avec une lignée allélique mâle fertile renfermant un gène de stérilité cytoplasmique. Le site de son gène nucléaire de restauration est un locus récessif. On peut obtenir du soja hybride en utilisant une lignée androstérile cytoplasmique comme parent femelle et en l'hybridant avec une lignée de restauration androstérile, le gène nucléaire de restauration étant un locus dominant. On peut produire un plant F1 mâle fertile en semant des graines recueillies chez le parent femelle.
Huang Mei
Sun Huan
Zhao Limei
Jilin Academy Of Agricultural Sciences
Robic
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