Chinese Journal OF Rice Science

Chinese Journal of Rice Science

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Genetic Analysis of Five Low Amylose Content Mutants Induced from a Japonica Rice Hexi 4

Sun Youquan; Kazuo Tse; Katsutoshi Okuno; Zhou Yuping; Yang Xiaohong

  

  • Received:1900-01-01 Revised:1900-01-01 Online:1999-01-10 Published:1999-01-10

合系4号5个低直链淀粉突变体的遗传分析

孙有泉 1;伊势一男 2;奥野员敏 3;周玉萍1;杨晓洪 1   

  1. 1云南省农业科学院粮食作物研究所， 中国昆明650205； 2 日本国际农业研究中心 , 日本筑波305；3 日本农业生物资源研究所,日本筑波305

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Abstract: The genetic analysis of the low amylose content mutants YM1, YM2, P152, P153, and P154 induced fromjaponica rice Hexi 4 was cartted out. The recessive genes conditioning lower amylose content in the low amylose content mutants are alleies each other and nonallelic to the wx locus. The segregation of F2 of the crosses between low amylose contentmutants and YM1 with higher amylose content (10. 50%) fits the inheritance mode of single gene. The gene conditioninghigher amylose content is dominant to lower amylose content.

Key words: amylose content, genetic analysis, mutant

摘要： 对粳稻品种合系4号诱变产生的5个低直链淀粉突变体YM1、YM2、P152、P153、P154进行了遗传分析。这5个低直链淀粉突变体的低直链淀粉含量均受一对隐性基因控制,并具等位性,且与wx位点不等位。直链淀粉含量较高的YM1（10.50%)与其他4个低直链淀粉含量突变体杂交F2存在着由一对等位基因控制的分离现象，直链淀粉含量较高对较低表现为显性。

关键词: 直链淀粉含量, 突变体, 遗传分析