72份普通菜豆资源表型性状多样性综合评价分析

Diversity Analysis and Comprehensive Evaluation of Phenotypic Traits in 72 Phaseolus vulgaris Resources

为了充分利用优质普通菜豆资源,以来自3个国家的72份普通菜豆资源为研究材料,采用隶属函数、Shannon-Wiener’s多样性指数、主成分分析及聚类分析等方法对10个表型性状进行综合评价分析。结果表明:10个性状的变异系数在13.9%~52.1%之间,表型多样性指数在1.354~2.209之间;9个表型性状与小区产量的紧密程度表现为单株产量>株高>荚宽>单株荚数>单荚粒数>荚长>每果节荚数>单株分枝数>百粒重。UMAP聚类分析将72份普通菜豆资源按照3个国家进行分组,巴西距离墨西哥和危地马拉的距离相对较远。72份普通菜豆资源系统聚类划分为3个类群:第Ⅰ类群包括25份普通菜豆资源,其中,巴西10份、墨西哥10份、危地马拉5份;第Ⅱ类群包括25份普通菜豆资源,其中,巴西4份、墨西哥14份、危地马拉7份;第Ⅲ类群包括22份普通菜豆资源,其中,巴西3份、墨西哥14份、危地马拉5份;主成分评价及隶属函数评价筛选到10份综合表现优异的资源,包括YJ010459、YJ009992-A、YJ009764、YJ010450、YJ010490、YJ010092-A、YJ010270、YJ009749、YJ009789、YJ010012。

In order to fully utilize high-quality common kidney bean resources,72 kidney bean resources from 3 countries were used as research materials,and membership function,Shannon-Wiener’s diversity index,principal component analysis and cluster analysis were used to evaluate 10 phenotypic traits.The results showed that the coefficient of variation of the 10 traits ranged from 13.9%to 52.1%,and the phenotypic diversity index ranged from 1.354 to 2.209.The close degree between traits and plot yield was the yield per plant>plant height>pod width>pod number per plant>seed number per pod>pod length>pod number per node>branch number per plant>100-seed weight.The UMAP Cluster analysis grouped 72 kidney bean resources into three groups,with Brazil relatively far from Mexico and Guatemala,and 72 kidney bean resources were clustered into three groups,groupⅠincludes 25 kidney bean resources,including 10 from Brazil,10 from Mexico and 5 from Guatemala,and GroupⅡincludes 25 kidney bean resources,including 4 from Brazil,14 from Mexico and 7 from Guatemala.GroupⅢincludes 22 resources,including 3 resources in Brazil,14 resources in Mexico and 5 resources in Guatemala.Ten excellent resources(YJ010459,YJ00992-A,YJ009764,YJ010450,YJ010490,YJ010092-A,YJ010270,YJ009749,YJ009789 and YJ010012)were selected by principal component analysis and membership function evaluation.