云南软米直链淀粉含量遗传分析  

Genetic Analysis of Amylose Content of Soft Rice Variety from Yunnan

作　　者：郭咏梅[1] 陈建华[2] 贺长树 赵春华[3] 陈远伟[3] 李树春[3] 卢义宣[1] 

机构地区：[1]云南省农业科学院粮食作物研究所,云南昆明650205 [2]云南省农业科学院生物技术与种质资源研究所,云南昆明650205 [3]嵩明县种子管理站,云南嵩明651700

出　　处：《西南农业学报》2009年第6期1505-1507,共3页Southwest China Journal of Agricultural Sciences

基　　金：云南省"十一五"重点攻关项目(2006NG03)

摘　　要：应用胚乳性状遗传模型,采用单粒法对云南软米品种毫屁和非软米品种桂朝2号直链淀粉含量(AC)的遗传规律进行研究。结果表明,毫屁和桂朝2号杂交,F2代表现出高直链淀粉含量对低直链淀粉含量呈3∶1分离,与软米特性有关的低直链淀粉含量基因受1对隐性主效基因控制。除主效基因控制外,还有部份修饰基因作用。The genetic model for endosperm was used to investigate the inheritance of amylose content （AC） of soft rice Haopi and Guichao 2 form Yunnan,in China, with single grain analysis. The results were as follow： in cross of Yunnan soft rice Haopi and Guichao 2, the fre- quency distribution of F2 was normal distribution, indicating that gene controlling amylose content of Yunnan soft rice was allele. Low amy-lose content from Haopi were controlled by one recessive major gene. Meanwhile, there should exist modifying gene besides major gene.

关 键 词：水稻 软米资源 直链淀粉含量 遗传 

分 类 号：S511[农业科学—作物学]