首页|谷子主要性状主基因多基因混合遗传模型分析

谷子主要性状主基因多基因混合遗传模型分析

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本研究揭示了谷子抽穗期、生育期、株高、主茎节数、穗下节间长、穗颈粗、穗长、单穗重和单穗粒重9个主要农艺性状遗传规律,为相关性状的进一步遗传改良及基因定位提供参考.以高产、优质、广适品种豫谷18为母本,抗除草剂品种冀谷38为父本构建1个包含584个家系的重组自交系(RIL)群体,采用主基因+多基因混合遗传模型,对RIL群体9个性状进行遗传分析.结果表明,RIL群体各性状表现出不同程度的分离,变异系数最高的为单穗粒重,最低的为生育期.对各性状进行相关性分析,表明多个性状间存在显著相关性,与单穗粒重相关性最高的为单穗重,其次为株高.遗传模型分析显示,抽穗期、生育期和穗颈粗均存在较强的主基因效应,且主基因遗传率较高.
Analyzing of the Mixed Inheritance Model of Major Gene Plus Polygene of Main Traits in Foxtail Millet
This study revealed the genetic rules of nine main agronomic traits in foxtail millet,including heading date,growth period,plant height,numbers of stem nodes,internode length under panicle,panicle neck diameter,panicle length,panicle diameter,single panicle weight,grain weight per panicle.These results served as a guide for future genetic improvement and gene mapping of related traits.A recombinant inbred line(RIL)population with 584 families was constructed using Yugu 18 as the female parent and Jigu 38 as the male parent.Nine traits of the RIL population were analyzed using the mixed inheritance model of major gene plus polygene.The results showed that the traits of RIL population showed different degree of separation,the highest variation coefficient was grain weight per panicle,the lowest coefficient of variation was growth period.Correlation analysis was carried out for traits,the result showed that there were significant correlations among the traits.The highest correlation with grain weight per panicle was single panicle weight,following by plant height.The genetic model analysis showed that strong main gene effects were seen in panicle neck diameter,growth period,and heading date,major genes also showed a high heritability.

Foxtail milletRecombinant inbred line(RIL)Agronomic traitsMajor gene plus polygeneInheritance model

解慧芳、魏萌涵、宋中强、刘金荣、王素英、邢璐、王淑君、刘海萍、贾小平、宋慧

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安阳市农业科学院,455000,河南安阳

许昌职业技术学院,461000,河南许昌

河南科技大学农学院,471023,河南洛阳

谷子 重组自交系 农艺性状 主基因+多基因 遗传模型

国家重点研发计划国家重点研发计划现代农业产业技术体系建设专项河南省青年人才托举工程项目河南省现代农业产业体系建设专项

2019YFD10007002019YFD1000702-8CARS-06-13.5-B252021HYTP035HARS-22-04-Z1

2024

10.16035/j.issn.1001-7283.2024.04.010

作物杂志
中国作物学会 中国农科院作物科学研究所

作物杂志

CSTPCD北大核心
影响因子：0.821
ISSN：1001-7283
年,卷(期)：2024.(4)