160份外引鹰嘴豆种质主要农艺性状的遗传多样性分析
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1吉林省白城市农业科学院,吉林白城 137000;2中国农业科学院作物科学研究所,北京 100081

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白城市农业科学院青年发展基金项目(Q2018002);国家食用豆产业技术体系(CARS-08-G4)


Genetic Diversity Analysis of Major Agronomic Traits in 160 Introduced Chickpea (Cicer arietinum L. ) Germplasm Resources
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1Baicheng Academy of Agricultural Sciences of Jilin Province, Jilin Baicheng 137000;2Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081

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    摘要:

    本研究对引自国际半干旱热带作物研究中心的 160 份鹰嘴豆种质资源的 13 个农艺性状进行了评价鉴定,并筛选了 特异种质。结果表明,该批鹰嘴豆种质资源具有较为丰富的遗传多样性,7 个数量性状的变异系数分别为主茎分枝数(70.1%) >单株荚数(46.1%)>百粒重(27.5%)>产量(23.7%)>株高(20.5%)>单荚粒数(18.3%)>生育期(5.8%),6 个质 量性状的 Shannon 多样性指数分别为粒色(1.385)>株型(1.119)>花色(0.905)>种子表面(0.772)>粒形(0.412)> 复叶叶型(0.000);结果还表明,产量与粒形、单株荚数极显著正相关,与百粒重显著正相关;前 4 个主成分的累计贡献率 为 63.417%,其中第 1 主成分与产量性状和产量有关,第 2 主成分与生育期有关,第 3 主成分与形态性状有关,第 4 主成分 与株高和粒形有关;聚类分析在遗传距离为 5 时将 160 份资源分为 3 类,其中第Ⅰ类群的株高较高;第Ⅱ类群的产量较高; 第Ⅲ类群的籽粒较大;筛选出 63 份早熟、矮秆、无分枝、多荚、荚粒数多、大粒、高产的特异种质资源。

    Abstract:

    In this study, 13 agronomic traits of 160 chickpea germplasm resources induced from ICRISAT were evaluated. The results showed that these chickpea germplasms represented abundant genetic diversity. The variable coefficients of 7 quantitative traits were branches per plant(70.1%)>pods per plant(46.1%) > 100-seed weight(27.5%) > yield(23.7%) > plant height(20.5%) > seeds per pod(18.3%) > growth period(5.8%), and the genetic diversity index of 6 quality traits were seed color(1.385) > plant type(1.119) > flower color(0.905) > seed surface(0.772) > seed shape(0.412) > leaf type(0.000). The cumulative contribution of the top 4 principal factors reached 63.417% in the principal factors analysis, as well as the first principal factor was mainly related to the yield traits and yield; the second principal factor was mainly related to the growth period; the third principal factor was mainly related to the plant height and seed shape. With cluster analysis, 160 chickpea germplasm resources were classified into 3 groups, the group Ⅰ showed the highest plant height, the group Ⅱ showed the highest yield, the group Ⅲ showed the biggest seed. 63 chickpea germplasm resources with elite agronomic traits were screened, which were early maturing, short stem, unbranching, more pods per plant, more seed per pod, large seed and high yield.

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郝曦煜,杨涛,梁杰,等.160份外引鹰嘴豆种质主要农艺性状的遗传多样性分析[J].植物遗传资源学报,2020,21(4):875-883.

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  • 收稿日期:2019-12-12
  • 最后修改日期:2020-05-14
  • 录用日期:2020-01-16
  • 在线发布日期: 2020-07-20
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