摘要
依托2016-2019年"第三次全国农作物种质资源普查与收集行动",从江苏省29个县(市/区)收集到87份扁豆地方种质资源。本研究对87份资源的19个性状进行了调查评价,同时结合由39对SSR标记鉴定的群体基因型信息研究了江苏省扁豆地方资源的遗传多样性。结果表明上述资源在19个性状上均具有丰富的表型变异,其中,12个形态特征性状Shannon多样性指数范围为0.4773~1.3695,7个农艺性状Shannon多样性指数范围为1.8064~2.0260。利用SSR标记进行聚类分析将所有材料划分为4个类群,各类群内材料均存在一定的表型变异,类群Ⅳ材料在产量性状方面的综合表现较好。从早熟、高产和大粒3个方面,共筛选出12份江苏省优异扁豆地方种质资源。本研究从表型和基因型两方面系统评价了江苏省扁豆地方种质资源的遗传多样性,为后续扁豆种质创新和新品种选育提供了科学依据。
Under the frame of"the Third National Campaign of Crop Germplasm Census and Collection",87 hyacinth bean landraces were collected from 29 counties in Jiangsu province from 2016 to 2019,followed by the genetic diversity analysis based on the phenotypic variations of 19 traits and the genotyping outcome using 39 SSR markers.The abundant phenotypic diversity was observed showing the diversity index of 12 morphological traits ranged from 0.4773 to 1.3695,and that of 7 agronomic traits ranged from 1.8064 to 2.0260.These landraces were divided into four genetic groups by cluster analysis.Levels of phenotypic variation were revealed in each cluster,and the performance of the yield-related traits in landraces in cluster IV was superior.Twelve elite hyacinth bean landraces showing early maturity,high yield and larger seed were selected.Taken together,this study unlocked the genetic diversity of hyacinth bean landraces in Jiangsu province,which provided insights for the germplasm innovation and breeding for new varieties in hyacinth bean.
作者
孟珊
狄佳春
苏彩霞
朱银
徐婷婷
朱小品
杨欣
邹淑琼
汪巧玲
颜伟
MENG Shan;DI Jia-chun;SU Cai-xia;ZHU Yin;XU Ting-ting;ZHU Xiao-pin;YANG Xin;ZOU Shu-qiong;WANG Qiao-ling;YAN Wei(Institute of Crop Germplasm and Biotechnology,Jiangsu Academy of Agricultural Science,Nanjing 210014;Taixing Institute of Agricultural Science,Taizhou 225433)
出处
《植物遗传资源学报》
CAS
CSCD
北大核心
2021年第5期1258-1272,共15页
Journal of Plant Genetic Resources
基金
第三次全国农作物种质资源普查与收集行动(111821301354052028)
江苏省现代农业产业技术体系项目(JATS[2020]274)
泰兴人才资助计划([2019]14)~~。
