期刊论文

Study on Genetic Diversity of Quantitative Traits in the Natural Hybrid Progeny of Triploid Miscanthus

中文

植物遗传资源学报

1672-1810

2017

18

5

984-990

10.13430/j.cnki.jpgr.2017.05.022

湖南农业大学作物种质创新与利用重点实验室开放课题（15KFXM02） 湖南省教育厅一般项目（15C0667）

本校为第一机构

以三倍体芒草奇岗的自然杂交后代为研究对象,对后代群体的16个数量性状分别进行变异分析、主成分分析和聚类分析。研究结果表明:(1)该杂交群体的变异系数在14.41% ~ 151.85%之间,平均变异系数为51.22%,说明杂交后代变异广泛。(2)主成分分析结果表明,前4个主成分反映原变量的80.206%的信息。第1主成分贡献率为48.74%,较大载荷性状有分蘖数、丛径、基部周长、单株鲜重和单株干重;第2主成分贡献率为16.313%,较大载荷性状有外径、内径、单茎干重、单茎鲜重和含水量;第3主成分贡献率为7.775%,仅有腋芽数一个较大载荷性状;第4主成分贡献率为7.378%,仅叶片数一个较大载荷。(3)聚类分析结果表明,将66份奇...

In the present work,16 quantitative traits of natural triploid hybrid Miscanthus × giganteus J. M. Greef Deuter were analyzed using the method of variation analysis,principal component analysis and cluster analysis. The results showed that：（ 1） Their variation coefficients ranged from 14. 41% to 151. 85% with the means of 51. 22%,which indicated that the variation of crossbreed was wide.（ 2） The principal component analysis results showed that the first four principal components could reflect 80. 206% of the original variable information....