中国农业科技导报2026，Vol.28Issue(3)：39-52,14.DOI:10.13304/j.nykjdb.2025.0286
大豆高产优质及耐密新品种(系)鉴选与分子标记检测
Identification and Molecular Marker Detection of New Soybean Varieties(Lines)with High Yield,Elite Quality and Density-tolerance
摘要
Abstract
To identify new soybean varieties with high yield and quality,and also to dissect their molecular genetic basis,34 soybean germplasms newly approved in Hebei province and currently participated in provincial regional trials were used as experimental materials.And the yield,quality and related traits were evaluated under 2 representative ecological regions in Hebei province with 2 density conditions.Meanwhile,combining with the detection of molecular markers associated with yield and seed quality traits,the genetic variations and genetic basis of yield and quality traits of the new soybeans were dissected.The results showed that there were abundant genetic variations on yield,quality and related traits among the 34 soybean varieties(lines).The coefficients of variation(CV)of yield were 11.2%and 8.3%under 2 densities,respectively,while the CV of 9 yield-related traits were from 8.8%to 36.6%and from 10.0%to 39.5%,and also,the CV of seed related-shape traits ranged from 2.7%to 9.1%and from 2.8%to 9.5%,respectively.Meanwhile,the CV of seed protein content were 5.19%and 5.20%under 2 densities,while the CV of seed oil content were 6.07%and 4.76%,respectively.The CV of 18 kinds of seed amino acids content ranged from 3.27%to 6.52%and 2.68%to 6.34%,respectively.Among 34 soybean varieties(lines),the yield of 9 soybeans,including Nongdadou 6,Jidou 17,Handou 19 and Cangdou 17,etc.,exceeded simultaneously more than 10%under 2 density conditions compared with that of control variety,which attributed to the high-yield,stable-yield and elite-quality varieties.And also,the yields of 10 soybean varieties(lines)under the high density increased by more than 10%compared with that under normal density,which attributed to the tolerance-to-high-density varieties.In addition,there were significant or extremely significant correlations among the yield-related traits or seed quality traits,and a few correlations were influenced by the high density treatment.Further analysis on the molecular markers associated with yield and quality traits showed that the varieties(lines)contained different elite genetic loci of yield and quality traits,indicating the different molecular mechanisms of related traits in these varieties.Above results provided basis for the selection of parents for further breeding of super-high-yield and special-quality new varieties in soybean.关键词
大豆/产量性状/品质性状/多点鉴定/分子标记Key words
soybean/yield related traits/quality traits/multi-location identification/molecular markers分类
农业科技引用本文复制引用
秦益民,邵振启,李文龙,杨占武,柯会锋,张彩英,李喜焕..大豆高产优质及耐密新品种(系)鉴选与分子标记检测[J].中国农业科技导报,2026,28(3):39-52,14.基金项目
国家重点研发计划项目(2023YFD2301500). （2023YFD2301500）
