水稻雄性不育系珍汕97A抽穗期的基因型分析 |
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引用本文: | 罗林广,翟虎渠,万建民. 水稻雄性不育系珍汕97A抽穗期的基因型分析[J]. 遗传学报, 2001, 28(11): 1019-1027 |
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作者姓名: | 罗林广 翟虎渠 万建民 |
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作者单位: | 南京农业大学作物 |
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基金项目: | "教育部优秀骨干教师基金”、"农业部超级稻研究计划”(Q200025)资助和"江苏省自然科学基金”(Q200036)资助 |
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摘 要: | 水稻雄性不育系珍汕97A是我国应用最大,使用最广泛的不育系,利用抽穗期基因型明确的秋光(e1e1e2e2e3e3se-1^eSe-1^e),越光(E1E1E2E2e3e3Se-1^eSe-1^e),日本晴(E1E1e2e2e3e3Se-1Se-1)和日光(E1E1E2E2e3e3Se-1Se-1)作测验品种,分析了水稻珍汕97B的抽穗期基因型,结果表明,珍汕97B的抽穗期感光基因型为:e1e1e2e2E3E3Se-1Se-1,同时还存在1对隐性感光抑制基因i-Se-1,进一步用QTL近等基因系NIL(Hd1),HIL(Hd2),NIL(Hd3),NIL(Hd5)和NIL(Hd6)进行的实验也验证了珍汕]97B 在1个显性的主效感光基因Se-1,以及其他感光修饰基因,如E3,Hd3(En-Se-1),Hd5和Hd6的基因的作用。因此,推测珍汕97A带有主效感光基因是其配制的灿型杂交稻抽穗期超亲表现的内因。
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关 键 词: | 珍汕97A 抽穗期 基因型 水稻 雄性不育系 |
文章编号: | 0379-4172(2001)11-1019-09 |
修稿时间: | 2001-05-29 |
Analysis of Heading Time Genotype for a Rice Male Ster ile Line Zhenshan 97A |
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Abstract: | Zhenshan 97A, a rice male sterile, were applied widely si nce the release of hybrid rice in 1973 in China, but the genotype of heading tim e in this sterile line was still unknown. This definitely limited the further us e of this sterile line in breeding practice and re-production of hybrid seeds. To solve this problem, we analyzed the segregation pattern of phenotype of headi ng time in progenies from crosses between Zhenshan 97A and four tester cultivars , Akihikari (e 1e 1e 2e 2e 3e 3 Se-1eSe-1e), Koshihikari (E 1E 1 E 2E 2e 3e 3 Se-1eSe-1e), Nipponbare (E 1E 1e 2e 2e 3e 3Se-1 Se-1) and Hinohikari (E 1E 1E 2E 2e 3e 3S e-1Se-1),whose genotypes of heading time were already known. The results showed that the genotype of heading time in Zhenshan 97A was e 1e 1e 2 e 2E 3E 3Se-1Se-1 and it also carri ed a recessive inhibitor i-Se-1 for phtoperiod-sensitivity. Mea nwhile, a ma jor photoperiod-sensitive dominant genes Se-1 and other modifie d photoperio d-sensitive genes: i-Se-1, E 3,Hd3 (En-Se-1), Hd5 and Hd6, were ident ified in Zhenshan 97A by crossing with QTL nearly isogenic lines: NIL (Hd1),NIL (Hd2),NIL(Hd3),NIL( Hd5) and NIL(Hd6). |
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Keywords: | Zhenshan 97A heading time genotype |
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