中国农学通报2025，Vol.41Issue(17)：38-44,7.
18份谷子种质资源表型性状的遗传多样性分析及综合评价
Phenotypic Genetic Diversity Analysis and Comprehensive Evaluation of 18 Millet Germplasm
摘要
Abstract
This study aimed to provide a theoretical basis for the selection of complementary parental lines in millet breeding and accelerate the breeding of new millet varieties.A total of 18 millet germplasm resources collected from various regions were investigated to explore the variation patterns of genetic diversity in phenotypic traits and conduct a comprehensive evaluation of these germplasm resources.The 18 millet germplasm resources showed abundant genetic diversity.For the phenotypic traits related to yield,including main panicle length,panicle diameter,single panicle weight,grain weight per panicle,and 1000-grain weight,the coefficients of variation were all greater than 35%.The Shannon-Wiener diversity index(H′)values ranged from 2.3570 to 2.7073 with an average of 2.5793.By calculating the comprehensive value of principal component F,the F-comprehensive values of each resource ranged from 0.1630 to 2.2201.Notably,the F-comprehensive values of the locally collected resources were generally higher than those from other provinces,which may be attributed to regional adaptability.Cluster analysis successfully classified the 18 millet germplasm resources into two groups.The distribution of these groups was basically consistent with their geographical origins,and the phenotypic traits within the groups exhibited complementary advantages.The phenotypic traits of the 18 local millet germplasm resources demonstrated rich genetic diversity.Through principal component analysis,three materials with excellent comprehensive performance,namely'Xixiu Local Millet No.1','Local Glutinous Millet',and'Xixiu Local Millet No.2',were screened out.The results showed that the genetic diversity of 18 germplasm resources was rich,and the classification of groups was consistent with the geographical origin,which could provide material support for optimizing the genetic diversity of local germplasm resources.关键词
谷子种质资源/表型性状/遗传多样性/主成分分析/综合评价/聚类分析Key words
millet germplasm resources/phenotypic traits/genetic diversity/principal component analysis/comprehensive assessment/cluster analysis分类
农业科技引用本文复制引用
叶开梅,陈维,任明刚,吴家丽,何大智,牛力立..18份谷子种质资源表型性状的遗传多样性分析及综合评价[J].中国农学通报,2025,41(17):38-44,7.基金项目
第三次全国农作物种质资源普查与收集行动(19191192). （19191192）
