摘要
本文通过对150份以四川地区为主的水稻恢复系和以印度为主的南亚水稻恢复系的SSR进行聚类分析,将供试品种分成了2个不同的类群,即南亚品种类群和四川品种类群,并对此比较分析,结果表明:①在南亚品种类群中,有31.5%的品种来自四川区域;同样在四川品种类群中,有12.8%的品种来自南亚区域。②在15个农艺性状中,南亚品种类群有4个性状(有穗数、粒长、粒型长宽比和糙米率)的平均值大于四川品种类群;有11个性状(剑叶长、剑叶宽、穗长、株高、每穗总粒数、每穗实粒数、结实率、千粒重、播抽期、粒宽和单株产量)的平均值小于四川品种类群。③2个类群农艺性状的共同特点是第一主成分的主导因子相同,均为粒数因子;它们的不同之点是第二主成分的主导因子不同,前者为粒长因子,后者为粒重因子。
Based on SSR cluster analysis of 150 hybrid rice restorer lines mainly developed in Sichuan and South Asia,the varieties were divided into two different groups,one is South Asian varieties group and another is Sichuan species group.And we have a comparative analysis for them,the results showed that：（i） 31.5 % varieties were from Sichuan region in South Asian varieties group.Similarly,12.8 % varieties were from the South Asian region in Sichuan species group.（ii） In 15 agronomic traits,the mean value of 4 traits（effective panicle number,grain length,Length/Width,brown rice rate）in South Asian varieties group was more than that of Sichuan species group,and other 11 traits（flag leaf length,flag leaf width,panicle length,plant height,grain number per panicle,filled grain per panicle,seed setting rate,1000 grain weight,sowing to heading date,grain width and grain yield per plant） mean value was less than that of Sichuan species group.（iii） The common character in 2 groups was that the dominant factor in the first principal component was same,namely grain number component,their difference was the dominant factor in the second principal component was different,grain length component in South Asian group and grain weight component in Sichuan species group.
出处
《西南农业学报》
CSCD
北大核心
2010年第4期996-1002,共7页
Southwest China Journal of Agricultural Sciences
基金
四川省财政育种工程专项资金项目(2007YZGC04-009)
四川省科技计划国际合作项目(2007H12-018)
关键词
四川
南亚
农艺性状
SSR聚类分析
水稻恢复系
Sichuan
South asia
Agronomic characters
SSR clustering analysis
Hybrid rice restorer
