摘要
以5963份陆地棉种质资源为材料,根据品种主要突变性状和品种类型分组成11组群,在分组的基础上利用21个表型性状,用非加权类平均聚类分析法,构建了281份陆地棉核心种质,占全部种质资源总量的4.71%。利用不同性状的均值t测验、方差F测验、变异系数、多样性指数t检验、均值、极差、表型方差、变异系数、均值差异百分率、方差差异百分率、极差符合率、变异系数变化率、主成分分析等参数进行核心种质代表性检验和评价。结果表明,所构建的陆地棉核心种质可以代表全部种质的遗传多样性。
A total of 5963 germplasm collection of upland cotton accessions were sampled for constructing a core collection. The whole collection was firstly divided into 11 groups based on the main traits and genotypes. The resultant core collection including 281 accessions was constructed with 21 traits in each subset by unweighted pairgroup method with arithmetic means（UPGMA）,which accounted for 4. 71% of total collection. Furthermore the representativeness between core collection and total collections was assessed by the t test,F test of variance,coefficient of variation,the diversity index t test,average,range,phenotypic variance and variation coefficient,mean difference percentage,variance difference percentage,coincidence rate of range,changeable rate of coefficient of variation and principal component analysis. The results demonstrated that the selected core collection could represent the genetic diversity of initial collection.
作者
代攀虹
孙君灵
贾银华
杜雄明
王谧
DAI Pan-hong SUN Jun-ling JIA Yin-hua DU Xiong-ming WANG Mil(l Agricultural College, Yangtze University, Jingzhou Hubei 43402 State Key Laboratory of Cotton Biology-Cotton Research Institute, Chinese Academy of Agricultural Sciences ,Anyang Henan 455000)
出处
《植物遗传资源学报》
CAS
CSCD
北大核心
2016年第6期961-968,共8页
Journal of Plant Genetic Resources
基金
农业部保种项目(2015N WB039)
科技部
财政部国家科技基础条件平台项目(NICGR2015-012)
"十二五"国家支撑计划(2013B AD01B 03)
关键词
陆地棉
核心种质
聚类分析
遗传多样性
upland cotton
core collection
clustering analysis
genetic diversity
