江西农业学报2025，Vol.37Issue(10)：14-21,8.DOI:10.19386/j.cnki.jxnyxb.2025.10.003
赣南地方大禾谷种质资源表型遗传多样性分析
Phenotypic Genetic Diversity Analysis of Local Dahegu Rice Germplasm Resources in Southern Jiangxi Province
摘要
Abstract
To systematically investigate the genetic diversity and phylogenetic relationships among local Dahegu rice germplasm resources in Southern Jiangxi Province,and to identify elite genetic materials,we conducted a comprehensive study using 42 local Dahegu rice accessions.Thirty critical agronomic traits were analyzed,including growth period,seed setting rate,number of effective panicles,and other key parameters,through Shannon-Wiener diversity index calculation,correlation analysis,cluster analysis,and principal component analysis(PCA).The results showed that the diversity index of 15 quality traits of 42 local Dahegu rice germplasm resources in southern Jiangxi ranged from 0.30 to 1.04,and the coefficient of variation was 10.98％to 70.08％.The diversity index of the 15 quantitative traits ranged from 1.60 to 2.04,and the coefficient of variation ranged from 6.00％to 52.51％.Correlation analysis shows that there is extensive correlation among the 15 quantitative traits.Hierarchical cluster analysis classified the 42 accessions into three distinct groups:Cluster Ⅰ(25 accessions),Cluster Ⅱ(12 accessions),and Cluster Ⅲ(5 accessions).PCA results showed that the first five principal components collectively accounted for 81.422％of the total variance.Through comprehensive evaluation scores,seven accessions with superior agronomic performance were identified including Tiancun Dahegu,Daxi Dahegu 2,Pingshan Dahegu,Meijiang Dahegu 3,Nantang Dahegu,Xiaoqin Dahegu and Qinsheng Dahegu.关键词
大禾谷/种质资源/表型/遗传多样性Key words
Dahegu/Germplasm resource/Phenotype/Genetic diversity分类
农业科技引用本文复制引用
张家健,谢连生,熊新华,刘跃清,刘海平,蒋龙,欧阳真程,帅思民,李才敬,刘钰琴,章萍,谢建萍..赣南地方大禾谷种质资源表型遗传多样性分析[J].江西农业学报,2025,37(10):14-21,8.基金项目
国家水稻产业技术体系赣州综合试验站(CARS-01-71) （CARS-01-71）
赣州市科学技术局科技计划项目"赣南特色稻种质资源收集与发掘利用"(2023PNS17077) （2023PNS17077）
赣州市科学技术局科技计划项目"优质富硒特色稻种质资源创制、品种选育与产品开发"(赣市科发[2023]44号) （赣市科发[2023]44号）
赣州市科学技术局科技计划项目"赣南地区大禾谷(禾子谷)种质资源的挖掘与利用"(赣市科发[2022]31号). （禾子谷）
