| 基于农艺性状鹰嘴豆抗旱核心种质库构建 |
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| 引用本文： | 聂石辉,王仙,彭琳,季良.基于农艺性状鹰嘴豆抗旱核心种质库构建[J].新疆农业科学,2022,59(4):847-854. |
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| 作者姓名： | 聂石辉 王仙 彭琳 季良 |
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| 作者单位： | 新疆农业科学院粮食作物研究所,乌鲁木齐 830091 |
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| 基金项目： | 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) |
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| 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...
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| 关 键 词： | 鹰嘴豆 抗旱性 农艺性状 种质资源 核心库 |
| 收稿时间： | 2021-07-13 |
Preliminary Construction of Chickpea Drought Resistance Core Germplasm Based on Agronomic Traits |
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| NIE Shihui,WANG Xian,PENG Lin,JI Liang.Preliminary Construction of Chickpea Drought Resistance Core Germplasm Based on Agronomic Traits[J].Xinjiang Agricultural Sciences,2022,59(4):847-854. |
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| Authors: | NIE Shihui WANG Xian PENG Lin JI Liang |
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| Institution: | Institute of Food Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China |
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| 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. |
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| Keywords: | chickpea drought resistance agronomic traits germplasm resources core germplasm bank |
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