摘要
以2个年度3个试点田间试验数据为基础,对全国10个省区收集到的具有代表性的41份绿豆种质资源的主要农艺性状进行了评价,并分析了这些资源的表型遗传多样性和病毒病、白粉病抗性水平。结果表明:41份绿豆种质资源遗传多样性丰富,遗传多样性指数为0.321~2.039,数量性状的遗传多样性明显高于质量性状。数量性状中,百粒重的多样性指数最高,荚长的多样性指数最低;质量性状中,花色的多样性指数最高,成熟荚色的多样性指数最低。聚类分析将41份种质资源聚为5大类群,第I类群主要为矮秆、直立以及早熟资源,可作为育种优异亲本材料;第II类群主要是大籽粒材料,可作为改良绿豆籽粒大小的材料加以利用;第III类群主要是黑籽粒材料,可作为特色育种材料加以利用;第IV类群和第V类群主要为抗病材料,可作为挖掘病毒病和白粉病抗病基因的亲本材料。经病毒病抗性鉴定,从41份种质资源中筛选出中抗资源9份,抗病资源4份;经白粉病抗性鉴定,从41份种质资源中筛选出中抗资源11份,抗病资源4份,高抗资源1份。通过对质量性状和数量性状进行主成分分析,5个主成分因子对表型变异的累计贡献率达到了71.95%。
Based on the data of three pilot field trials in two years,the main agronomic characters of 41 representative mung bean germplasm resources collected from 10 provinces and regions in China were evaluated,and the phenotypic genetic diversity and resistance level of these resources to mung bean yellow mosaic virus(MYMV)disease and powdery mildew were analyzed.The results showed that the genetic diversity of 41 mung bean germplasm resources was rich,with the genetic diversity index ranging from 0.321 to 2.039.The genetic diversity of quantitative traits was significantly higher than that of quality traits.The diversity index of 100-seeds weight was the highest,and the diversity index of pod length was the lowest.The diversity index of flower color was the highest and that of mature pod color was the lowest among the quality traits.The 41 germplasm resources were grouped into five groups by cluster analysis.The first group were mainly dwarf,erect and early-maturing resources,which could be used as excellent parent materials for breeding.The second group were mainly large-seeded materials,which could be used to improve the grain size of mung bean.The third group were mainly black seed materials,which could be used as characteristic breeding materials.The fourth and fifth groups were mainly disease-resistant materials,which could be used as parent materials for mining mung bean yellow mosaic virus and powdery mildew disease-resistant genes.Among the 41 germplasm resources,9 mediumly resistant genotypes,4 resistant genotypes were identified to mung bean yellow mosaic virus(MYMV)disease,11 mediumly resistant genotypes,4 resistant genotypes and 1 highly resistant genotype were identified to powdery mildew.The principal component analysis(PCA)of qualitative and quantitative traits suggested that five principal component factors might contribute 71.95%of phenotypic variation.
作者
刘勇
叶鹏盛
韦树谷
曾华兰
代顺冬
赖佳
黄玲
孙小芳
盛玉珍
LIU Yong;YE Pengsheng;WEI Shugu;ZENG Hualan;DAI Shundong;LAI Jia;HUANG Ling;SUN Xiaofang;SHENG Yuzhen(Industrial Crop Research Institute of Sichuan Academy of Agricultural Sciences,Chengdu 610300,China)
出处
《科技导报》
CAS
CSCD
北大核心
2023年第16期89-99,共11页
Science & Technology Review
基金
国家现代农业产业技术体系四川豆类杂粮创新团队项目(SCCXTD-2020-20)
四川省财政自主创新专项(2022ZZCX081)。
关键词
绿豆
种质资源
遗传多样性
病毒病抗性
白粉病抗性
mung bean
germplasm resources
genetic diversity
virus disease resistance
powdery mildew resistance
