Genomic sequencing analysis reveals copy number variations and their associations with economically important traits in beef cattle

文献类型： 外文期刊

第一作者： Yang, Liu

作者： Yang, Liu;Niu, Qunhao;Zhang, Tianliu;Zhao, Guoyao;Zhu, Bo;Chen, Yan;Zhang, Lupei;Gao, Xue;Gao, Huijiang;Li, Junya;Xu, Lingyang;Yang, Liu;Liu, George E.

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关键词： Copy number variation; Beef cattle; Whole genome sequencing; Economically important traits

期刊名称：GENOMICS （ 影响因子：5.736； 五年影响因子：4.939 ）

ISSN： 0888-7543

年卷期： 2021 年 113 卷 1 期

页码：

收录情况： SCI

摘要： Copy number variation (CNV) represents a major source of genetic variation, which may have potentially large effects, including alternating gene regulation and dosage, as well as contributing to gene expression and risk for normal phenotypic variability. We carried out a comprehensive analysis of CNV based on whole genome sequencing in Chinese Simmental beef cattle. Totally, we found 9313 deletion and 234 duplication events, covering 147.5 Mb autosomal regions. Within them, 257 deletion events of high frequency overlapped with 193 known RefGenes. Among these genes, we observed several genes were related to economically important traits, like residual feed intake, immune responding, pregnancy rate and muscle differentiation. Using a locus-based analysis, we identified 11 deletions and 1 duplication, which were significantly associated with three traits including carcass weight, tenderloin and longissimus muscle area. Our sequencing-based study provided important insights into investigating the association of CNVs with important traits in beef cattle.

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