| 甘蓝型油菜细胞质雄性不育材料NEA的发现与遗传研究 |
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| 引用本文： | 蒋梁材,蒲晓斌,张启行,陈放.甘蓝型油菜细胞质雄性不育材料NEA的发现与遗传研究[J].中国农业科学,2002,35(1):72-78. |
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| 作者姓名： | 蒋梁材 蒲晓斌 张启行 陈放 |
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| 作者单位： | 1. 四川省农业科学院作物研究所,成都,610066
2. 四川大学,成都,610064 |
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| 基金项目： | 国家“十五”863现代农业主题资助，四川省“九五”育种攻关（9611001-1-6-1），四川省科技厅应用基础研究项目 |
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| 摘 要： | 1993年在甘蓝型油菜92P×甘蓝型聚生角果油菜辐照后代中发现的不育材料NEA,其天然种或测交后代不育株的不育度均为100％。用性状优良的双低甘蓝型油菜自交系连续回交,育成了JL-14、JL-18两份双低不育系。研制出能恢复JL-4、JL-18不育性且F1优势强的材料6720和6722两份。经过JL-4、JL-18恢保关系测定和恢复基因的遗传研究表明,它们是不同于Polcms和陕2A的不育胞质类型,恢复基因为一对显性核基因。
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| 关 键 词： | 甘蓝型油菜 不育系 恢复系 遗传 |
| 修稿时间： | 2001年2月6日 |
Discovery and lts Genetic Study on the Cytoplasmic Male Sterile Line "NEA" in Brassica no pus L. |
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| JIANG Liang-cai,PU Xiao-bin,ZHANG Qi-xing CHEN Fang.Discovery and lts Genetic Study on the Cytoplasmic Male Sterile Line "NEA" in Brassica no pus L.[J].Scientia Agricultura Sinica,2002,35(1):72-78. |
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| Authors: | JIANG Liang-cai PU Xiao-bin ZHANG Qi-xing CHEN Fang |
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| Abstract: | The male sterile NEA plants were discovered in the radiated progenies of 92P X Aggregate-silique in Brassica napus L. in 1993. Their progeny plants of testcrossing or open-pollinating were all male sterile. The double-low male sterile lines JL-4 and JL-18 were bred through continually backcrossing to NEA using double-low variety No. 4 and No. 18 in Brassica napus L. The restorers 6720 and 6722 which could restore the male sterile fertility of JL-4 and JL-18 were developed. The heterosis of F1 was very strong. It showed that JL-4 and JL-18 were a new CMS type,which was different from PolCMS type and Shaan 2A type by genetic study and determination of restoring-maintaining relationship. Their male sterile character was controlled by sterile cytoplasm and a pair of recessive genie genes. Their restoring genes were a pair of dominant genie genes. |
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| Keywords: | Brassica napus L Male sterile line Restoring line Heredity |
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