新疆农业科学 ›› 2022, Vol. 59 ›› Issue (4): 847-854.DOI: 10.6048/j.issn.1001-4330.2022.04.008

• 作物遗传育种·分子遗传学·耕作栽培·种质资源 • 上一篇    下一篇

基于农艺性状鹰嘴豆抗旱核心种质库构建

聂石辉(), 王仙, 彭琳, 季良()   

  1. 新疆农业科学院粮食作物研究所,乌鲁木齐 830091
  • 收稿日期:2021-07-13 出版日期:2022-04-20 发布日期:2022-04-24
  • 通信作者: 季良
  • 作者简介:聂石辉(1987-),男,河南人,助理研究员,研究方向为作物遗传育种,(E-mail) 250303063@qq.com
  • 基金资助:
    现代农业产业技术体系建设专项(CARS-08-Z23);新疆农业科学院青年科技基金(xjnkq-2014018)

Preliminary Construction of Chickpea Drought Resistance Core Germplasm Based on Agronomic Traits

NIE Shihui(), WANG Xian, PENG Lin, JI Liang()   

  1. Institute of Food Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
  • Received:2021-07-13 Online:2022-04-20 Published:2022-04-24
  • Correspondence author: JI Liang
  • Supported by:
    Special Construction Project of Modern Agriculture Research System(CARS-08-Z23);Youth Science and Technology Fund of Xinjiang Academy of Agricultural Sciences(xjnkq-2014018)

摘要:

【目的】运用多年田间试验及种质遗传多样性分析筛选出100份抗旱性表现优异种质为参试材料,结合田间抗旱鉴定构建鹰嘴豆抗旱核心资源库,为鹰嘴豆抗旱种质利用提供基础材料。【方法】比较随机取样、位点优先取样、偏离度取样策略及取样比例,采用均值差异百分率、方差差异百分率、极差符合率以及变异系数变化率评价各核心子集农艺性状的变异保有量,筛选构建抗旱核心库。利用主成分分析确定鹰嘴豆抗旱种质核心库。【结果】采用的位点优先取样方法40%取样比例下构建的核心种质与原种质在多样性上无显著差异。并且检验种质各性状的均值与原种质符合率均大于96.33%,变异系数符合率大于97.25%,优于其它2种取样策略。主成分分析4个主成分包含各质量性状85%以上遗传多样性信息,确定构建的40份核心种质资源能够代表原种质资源遗传多样性。【结论】位点优先取样策略下,40%的取样比例所建立的鹰嘴豆抗旱核心种质资源库可以代表原种质资源的遗传多样性。

关键词: 鹰嘴豆; 抗旱性; 农艺性状; 种质资源; 核心库

Abstract:

【Objective】 Years of field trials and germplasm genetic diversity analysis screened out 100 germplasms with excellent drought resistance performance as test materials, combined with field drought resistance identification, the chickpea drought resistance core resource bank was initially constructed with a view to provide basic materials for drought resistant germplasm utilization of chickpea in the later stage.【Methods】 By comparing random sampling, site priority sampling, deviation sampling strategy and sampling ratio, the variation retention of agronomic traits in each core subset was evaluated by means of mean difference percentage, variance difference percentage, extreme difference coincidence rate and variation rate of coefficient of variation, and the final strategy of constructing drought-resistant core library was selected. In addition to that, the core database of drought resistant germplasm of chickpea was determined by principal component analysis.【Results】 There was no significant difference in diversity between the core collection constructed with the site-first sampling method at 40% sampling ratio and the original collection. And the coincidence rate of the mean value of each trait of the tested germplasm with the original germplasm was greater than 96.33%, and the coincidence rate of the coefficient of variation was greater than 97.25%, which was better than the other two sampling strategies.The four principal components of principal component analysis contained more than 85% genetic diversity information of each quality trait, and 40 core germplasm resources constructed could represent the genetic diversity of the original germplasm resources. 【Conclusion】 Under the site-priority sampling strategy, the chickpea drought-tolerant core germplasm bank established with a sampling ratio of 40% can represent the genetic diversity of the original germplasm resources.

Key words: chickpea; drought resistance; agronomic traits; germplasm resources; core germplasm bank

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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