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江苏省扁豆地方种质资源遗传多样性评价
孟珊1, 狄佳春1, 苏彩霞2, 朱银1, 徐婷婷1, 朱小品1, 杨欣1, 邹淑琼1, 汪巧玲1, 颜伟1
0
(1.江苏省农业科学院种质资源与生物技术研究所;2.泰兴市农业科学研究所)
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 个形态特征性状多样 性指数范围为 0.4773-1.3695,7 个农艺性状多样性指数范围为 1.8064-2.0260。利用 SSR 标记进行聚类分析将所有材料划分为 4 个群集,各群集内材料均存在一定的表型变异,群集 IV 内材料在产量性状方面的综合表现较好。从早熟、高产和大粒三个 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。
关键词:  扁豆  地方种质资源  遗传多样性  种质资源普查
DOI:10.13430/j.cnki.jpgr.20210302002
投稿时间:2021-03-02修订日期:2021-03-17
基金项目: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)
Genetic Diversity Analysis of Hyacinth Bean Landraces Collected from Jiangsu Province
MENG Shan1, DI Jia-chun1, SU Cai-xia2, ZHU Yin1, XU Ting-ting1, ZHU Xiao-pin1, YANG Xin1, ZOU Shu-qiong1, WANG Qiao-ling1, YAN Wei1
(1.Institute of Crop Germplasm and Biotechnology, Jiangsu Academy of Agricultural Science;2.Taixing Institute of Agricultural Science)
Abstract:
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.
Key words:  hyacinth bean  landrace  genetic diversity  crop germplasm census