| 水稻近等不育系的涵义、选育及应用前景 |
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| 引用本文： | 李宏,周少川,周德贵,黄道强,赖穗春,王志东,王重荣.水稻近等不育系的涵义、选育及应用前景[J].广东农业科学,2013,40(11):1-3. |
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| 作者姓名： | 李宏 周少川 周德贵 黄道强 赖穗春 王志东 王重荣 |
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| 作者单位： | 广东省农科院水稻研究所 |
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| 基金项目： | 比尔和梅琳达·盖茨基金会项目;广东省水稻产业化推进专项(2007020400003) |
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| 摘 要： | 阐明了水稻近等不育系的涵义,近等不育系是指除对雄性不育细胞质具有育性恢复能力的1对主效恢复基因存在差异外,其他遗传背景与不育系完全相同的水稻品系,培育近等不育系的最终目的是培育不育系。介绍了水稻近等不育系的选育途径和育种实践,指出并分析了水稻近等不育系在选育细胞质雄性不育系、进行近等不育系的遗传改良和加快不育系育种进程等方面的应用前景。
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| 关 键 词： | 细胞质雄性不育系 近等基因系 近等不育系 三系杂交稻 育种 |
Definition, development and utilization prospect of near-isogenic line of CMS line |
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| LI Hong,ZHOU Shao-chuan,ZHOU De-gui,HUANG Dao-qiang,LAI Sui-chun,WANG Zhi-dong,WANG Chong-rong.Definition, development and utilization prospect of near-isogenic line of CMS line[J].Guangdong Agricultural Sciences,2013,40(11):1-3. |
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| Authors: | LI Hong ZHOU Shao-chuan ZHOU De-gui HUANG Dao-qiang LAI Sui-chun WANG Zhi-dong WANG Chong-rong |
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| Institution: | (Rice Research Institute,Guangdong Academy of Agricultural Sciences,Guangzhou 510640,China) |
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| Abstract: | The definition of near-isogenic line of CMS line (NCMS line for short) was given. NCMS line was defined as the line which was identical with CMS line apart from only 1 pair of major fertility restoration gene for cytoplasmic male sterility. The ultimate purpose of development of NCMS line was to develop CMS line. The approaches to develop NCMS line and its breeding practice were introduced. NCMS line could be used to develop A(abortion) line, to improve near-isogenic line of CMS line and to accelerate the process of development of A line. |
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| Keywords: | CMS line near-isogenic line near-isogenic line of CMS line (NCMS line) three-line hybrid rice breeding |
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