首页|期刊导航|高技术通讯（英文版）|Breeding double low super hybrids with dominant genic male sterility three lines in Brassica napus
高技术通讯（英文版）2005，Vol.11Issue(4)：427-431,5.
Breeding double low super hybrids with dominant genic male sterility three lines in Brassica napus
Breeding double low super hybrids with dominant genic male sterility three lines in Brassica napus
摘要
Abstract
A double low homozygous two-type sterile line ZY-2AB, its near-isogenic temporary maintainer line ZY-4, and the full sterile line ZY-3 derived from the cross of ZY-2A with ZY-4, were developed to breed three-line dominant GMS hybrid in Brassica napus. Three years data showed that the ratios of sterile and fertile plants fit the expected 1:1 ratio in ZY-2AB, and the 1:0 ratio in ZY-3, respectively. Some double low super hybrid combinations were screened out when the full sterile line ZY-3 was used as female parent, among which the combination 01Z24 increased 36.88 percent more yield than control and the combination 98Z131 has been passed through the Sichuan Provincial Regional Test and registered in Sichuan Province. Two years data showed that the agronomic performance of the two-line hybrids derived from crosses of ZY-2A with restorer lines versus that of the three-line hybrids produced by ZY-3 was not different for any of the nine most important agronomic characteristics, revealing that near-isogenic line of homozygous two-type line was used as temporary maintainer could effectively avoid the disadvantage of three-way cross hybrid in breeding three-line dominant GMS hybrid.关键词
Brassica napus/hybrid/dominant genic male sterility/three-lineKey words
Brassica napus/hybrid/dominant genic male sterility/three-line分类
生物科学引用本文复制引用
Wang Maolin ,Zhao Yun..Breeding double low super hybrids with dominant genic male sterility three lines in Brassica napus[J].高技术通讯（英文版）,2005,11(4):427-431,5.基金项目
Supported by the High Technology Research and Development Programme of China (No. 2001AA241104). （No. 2001AA241104）
