花生学报2025，Vol.54Issue(2)：134-143,10.DOI:10.14001/j.issn.1002-4093.2025.02.003
彩色花生种质资源遗传多样性综合评价
Comprehensive Evaluation on Genetic Diversity of Color Peanut Germplasms
摘要
Abstract
Peanut is an important oil-bearing and cash crop in China,with approximately 50％of produc-tion utilized for edible oil extraction and 40％for various food products.Color peanuts refer to varieties with black,red,white or variegating color testa.Color peanut was known as a kind of high-class edible peanut,exhibiting strong market demand and significant economic returns.In this study,158 color peanut germplasm resources and 50 normal pink peanut germplasm resources were collected from both domestic and inter-national sources.Phenotypic identification was conducted through 10 traits,including seed testa color and seed length.Statistical analysis revealed that the coefficient of variation among all traits ranged from 12.15％to 35.14％,with 100-kernel mass,color index,seed area,and area ratio,showing coef-ficients of variation greater than 20％.The genetic diversity index ranged from 7.61 to 7.69,indicating abundant genetic diversity within the germplasms.Correlation analysis showed that 100-kernel mass was positively correlated with seed length,width,area,diameter,circumference,and other related traits,with correlation coefficients ranging from 0.50 to 0.96.Cluster analysis grouped the germ-plasms into four categories:Groups Ⅰ and Ⅱ consisted mainly of small-grain accessions with average 100-kernel masses of 50.51 g and 34.29 g,respectively,while Groups Ⅲ and Ⅳ were primarily large-grain accessions with average 100-kernel masses of 68.24 g and 84.66 g,respectively.Principal compo-nent analysis(PCA)indicated that the cumulative contribution rate of the first four principal compo-nents was 99.09％.The first principal component primarily reflected seed size and mass,the second reflected seed shape,and the third reflected seed testa color.These findings provide a comprehensive understanding of seed testa color,seed size,shape,and other related traits in color peanut germ-plasms.The results also serve as a valuable resource for future breeding programs aiming at the devel-opment of new color peanut varieties.关键词
彩色花生/种皮颜色/种子/遗传多样性Key words
color peanut/testa color/seed/genetic diversity分类
农业科技引用本文复制引用
王光浩,赵传志,王子豪,苏磊,韩林婕,贺梁琼,王培云,邓丽,王兴军,潘教文..彩色花生种质资源遗传多样性综合评价[J].花生学报,2025,54(2):134-143,10.基金项目
国家重点研发计划(2022YFD1200400) （2022YFD1200400）
山东省重点研发计划(2021LZGC025) （2021LZGC025）
济南市"新高校20条"自主培养创新团队(202333047) （202333047）
山东省泰山学者工程 （）
山东省农业科学院创新工程 （）
