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分析复制数变异和选择特征,使用来自16种中国子品种的全基因组测序数据进行分析

L Zhang¹, Z Huang¹, M Luo¹

¹College of Animal Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, P. R. China.

British poultry science

|October 22, 2025

概括

这项研究分析了16种中国品种的副本数变异 (CNV) 和它们的区域 (CNVR),确定了与肉类和产卵的生长和繁殖特征相关的关键基因和途径.

科学领域:

基因组学就是基因组学.
动物遗传学动物遗传学
进化生物学进化生物学

背景情况:

副本数变异 (CNV) 是遗传多样性的重要来源.
了解家的CNV对于改善特征至关重要.

研究的目的:

为了在16种中国本地品种中比较全基因组CNV和CNVR.
识别与生长和繁殖特征相关的关键基因和途径.
分析肉类 (MD) 和产卵 (ED) 与野生 (WD) 的选择特征.

主要方法:

使用Breakdancer,Pindel和CNVnator进行CNV检测;使用HandyCNV进行CNVR识别.
使用固定和差异化指数 (DIsv) 进行选择特征分析.
基因和基因组的京都百科全书 (KEGG) 丰富分析用于途径和基因识别.
人口聚类的主要组成部分分析 (PCA).

主要成果:

127只子通过PCA.被分为4个群体 (WD,MD,ED,MED) 通过PCA.
发现了237,630个CNV和6,176个CNVR;确定了1384个常见CNVR和2,105个独特CNVR.
在4个途径和8个与生长相关的基因中发现了MD选择特征.
在3个途径和8个与繁殖相关的基因中确定了ED选择特征.

结论:

野生和养种群之间的CNVR模式不同.
在子中确定了特定的基因和选择中的生长和繁殖途径.
为子繁殖和特征改进提供了宝贵的遗传资源.

关键词:

在CNV中,CNV是NV.在CNVR中,我们可以看到CNVR.一个的.候选基因是指一个候选基因.选择签名选择签名

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