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Copy Number Variation Analysis Revealed the Evolutionary Difference between Chinese Indigenous Pigs and Asian Wild Boars

文献类型： 外文期刊

作者： Fan, Shuhao 1 ; Kong, Chengcheng 1 ; Chen, Yige 1 ; Zheng, Xianrui 1 ; Zhou, Ren 1 ; Zhang, Xiaodong 1 ; Wu, Xudong 3 ; Zhang, Wei 3 ; Ding, Yueyun 1 ; Yin, Zongjun 1 ;

作者机构： 1.Anhui Agr Univ, Coll Anim Sci & Technol, Hefei 230036, Peoples R China

2.Anhui Univ Chinese Med, Sch Pharm, Hefei 230036, Peoples R China

3.Anhui Acad Agr Sci, Inst Anim Husb & Vet Med, Key Lab Pig Mol Quantitat Genet, Anhui Prov Key Lab Livestock & Poultry Prod Safety, Hefei 230031, Peoples R China

关键词： CNV; CNVR; Anqingliubai pig; wild boar; QTL

期刊名称：GENES （ 影响因子：3.5； 五年影响因子：3.9 ）

ISSN：

年卷期： 2023 年 14 卷 2 期

页码：

收录情况： SCI

摘要： Copy number variation (CNV) has been widely used to study the evolution of different species. We first discovered different CNVs in 24 Anqingliubai pigs and 6 Asian wild boars using next-generation sequencing at the whole-genome level with 10x depth to understand the relationship between genetic evolution and production traits in wild boars and domestic pigs. A total of 97,489 CNVs were identified and divided into 10,429 copy number variation regions (CNVRs), occupying 32.06% of the porcine genome. Chromosome 1 had the most CNVRs, and chromosome 18 had the least. Ninety-six CNVRs were selected using VST 1% based on the signatures of all CNVRs, and sixty-five genes were identified in the selected regions. These genes were strongly correlated with traits distinguishing groups by enrichment in Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathways, such as growth (CD36), reproduction (CIT, RLN), detoxification (CYP3A29), and fatty acid metabolism (ELOVL6). The QTL overlapping regions were associated with meat traits, growth, and immunity, which was consistent with CNV analysis. Our findings increase the understanding of evolved genome structural variations between wild boars and domestic pigs, and provide new molecular biomarkers to guide breeding and the efficient use of available genetic resources.

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