中国农学通报2025，Vol.41Issue(17)：13-18,6.
200份谷子种质资源表型遗传多样性分析及综合评价
Phenotypic Genetic Diversity Analysis and Comprehensive Evaluation of 200 millet Germplasm Resources
摘要
Abstract
This study aimed to elucidate the genetic diversity and comprehensive agronomic performance of foxtail millet germplasm resources in Yulin City of Shaanxi,to support breeding programs.200 geographically distinct millet accessions were evaluated using variation analysis,genetic diversity assessment,cluster analysis,principal component analysis(PCA),and correlation analysis.Phenotypic characterization revealed the predominant traits including green leaf sheaths,semi-erect plant architecture,conical panicles,medium panicle compactness,short bristles,and yellow grain coloration.Quantitative trait analysis demonstrated highly significant genetic variation(P<0.01),with the highest Shannon-Wiener diversity indices observed for panicle diameter(2.06)and single panicle weight(2.06),and the lowest for panicle length(1.96).Cluster analysis based on Euclidean distance and Ward's method classified 63.5%of accessions into Cluster Ⅲ.PCA extracted five principal components,accounting for 91.85%cumulative variance contribution.A weighted comprehensive evaluation(D-value)using membership functions identified ten superior cultivars,including'Jingu 45',ranked by D-value.Pearson correlation analysis revealed significant associations(P<0.01)between the D-value and five key traits,including plant height,panicle diameter,single panicle weight,panicle grain weight,and threshing percentage.These findings highlight the rich genetic diversity of Yulin's millet germplasm.The top-ranked cultivars exhibit potential for regional promotion and breeding applications,while the five core traits serve as critical indicators for germplasm evaluation.关键词
谷子/种质资源/变异分析/多样性分析/聚类分析/主成分分析/相关分析/综合评价Key words
millet/germplasm resources/variation analysis/diversity analysis/cluster analysis/principal component analysis/correlation analysis/comprehensive evaluation分类
农业科技引用本文复制引用
李振姣..200份谷子种质资源表型遗传多样性分析及综合评价[J].中国农学通报,2025,41(17):13-18,6.基金项目
财政部和农业农村部:国家现代农业产业技术体系"谷子高粱榆林综合试验站"(CARS-06-14.5-B27) （CARS-06-14.5-B27）
陕西省重点研发计划项目"榆林市谷子种质资源农艺性状鉴定及核心种质构建"(2023-YBNY-015). （2023-YBNY-015）
