软米直链淀粉含量的遗传分析  

Genetic analysis of amylose content in soft rice

作　　者：周勇[1,2,3] 夏九成[1,2] 黄世君 王玉平[1,2] 郑英 李仕贵[1,2] 

机构地区：[1]四川农业大学水稻研究所,四川温江611130 [2]四川农业大学,作物基因资源与遗传改良教育部重点实验室,四川雅安625014 [3]四川省乐山市农牧科学研究所,四川峨眉山614216

出　　处：《西南农业学报》2008年第4期906-910,共5页Southwest China Journal of Agricultural Sciences

基　　金：教育部新世纪优秀人才支持计划资助(NCET-04-0907);教育部创新团队发展计划资助(IRT0453)

摘　　要：利用引物484/485和CAPs标记PCR-AccⅠ对软米直链淀粉含量进行DNA分子标记检测表明,软米直链淀粉含量的遗传受一个与Wx基因非等位的基因控制。遗传分析表明,软米低直链淀粉含量对高直链淀粉含量为隐性,表现为单基因遗传。为软米直链淀粉含量基因的定位以及利用奠定了基础。The research results indicated that the genotype of amylose synthesis of soft rice was characterized by Wx3 or Wx2 genotype estimated with microsatellite maker named 484/485 and G or T nucleotide type at the 5＇ splice site of intron 1 with CAPs marker named PCR- Ace I ,the inheritance of amylose content of soft rice was controlled by a recessive gene which was a non-allelic gene with waxy gene. It should be a base for locating and breeding use of amylase content gene of soft rice.

关 键 词：软米 直链淀粉含量 分子标记 遗传分析 

分 类 号：S511[农业科学—作物学]