草业科学2017，Vol.34Issue(5)：1032-1041,10.DOI:10.11829/j.issn.1001-0629.2016-0588
柱花草种质资源表型性状的多样性分析
Phenotypic diversity analysis of Stylosanthes germplasms
摘要
Abstract
To understand the genetic diversity distribution and genetic background of different Stylosanthes species,60 accessions from 6 species were evaluated by cluster analysis and principal componentanalysis based on 17 phenotype traits.The results showed that banner stripe had the highest Shannon diversity index,followed by stem growth habits and stem indumentum.Plant height had the highest variation coefficient,followed by leaf width and petiole length.Clustering analysis demonstrated that 60 accessions were classified into 2 groups.Group Ⅰ included 7 accessions of Stylosanthes capitata,10 accessions of S.macrocephala,7 accessions of S.hamata and 11 accessions of S.humilis,and group Ⅱ included 8 accessions of S.gracilis and 17 accessions of S.guianensis.This study could provide useful information for selecting fine germplasm and improving breeding efficiency of Stylosanthes.关键词
DUS测试性状/遗传多样性/聚类分析/主成分分析Key words
DUS tested characteristics/genetic diversity/cluster analysis/principal component analysis分类
农业科技引用本文复制引用
蒋亚君,申晴,丁西朋,严琳玲,刘国道,白昌军..柱花草种质资源表型性状的多样性分析[J].草业科学,2017,34(5):1032-1041,10.基金项目
中央级公益性科研院所基本科研业务费专项资金(1630032017006) （1630032017006）
海南地区国家草品种区域试验和“三性”测试 （）
优良柱花草新品种种子生产关键技术研究及其规模化繁育示范(0314108) （0314108）
