Animal Husbandry and Veterinary Medicine

Identification of Candidate Genes for Cattle Reproductive Traits Using Selective Sweep Method

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  • (1.Institute of Animal Science and Veterinary Medicine,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China; 2.Henan Key Laboratory of Livestock and Poultry Breeding and Nutrition Regulation,Zhengzhou 450002,China;3.Pingdingshan Animal Disease Control and Prevention Center,Pingdingshan 467000,China;4.Pingdingshan Animal Product Quality and Safety Monitoring Center,Pingdingshan 467000,China)

Received date: 2019-12-02

  Online published: 2020-07-15

Abstract

The aim of this study is to identify candidate genomic regions and genes associated with cattle reproductive traits. Blood samples were collected from 97 Jiaxian Red cows and 32 Chinese Holstein cows.Genomic DNA was isolated from each blood sample.SLAF-seq was used to obtain genome-wide SNP markers and genotypes of each SNP for every individual. Fst value and π ratio value were calculated for each SNP,and used to identify diverged genomic regions across two breeds using selective sweep method.Then the identified regions were compared with the cattle reproductive QTLs in the animal QTL database.Overlapping regions were considered as candidate regions for reproductive traits.Expression status of genes within candidate regions in tissues related to cattle reproduction was checked in the animal omics database.The highly expressed genes(FPKM>10) were prioritized as candidate genes. Based on the Fst and π ratio values which were greater than 99th percentile of genome-wide values,42 highly diverged regions were identified.Eleven regions were overlapped with QTLs for reproductive traits.In these 11 regions,9 genes were expressed in the ovary,ampula and corpus luteum(FPKM>1).CFDP1,CFDP2 and FAM204A genes were highly expressed in the three tissues(FPKM>10).Thus,CFDP1,CFDP2 and FAM204A genes are prioritized as potential candidate genes for cattle reproductive traits.

Cite this article

LÜ Shijie, CHEN Fuying, ZHANG Zijing, WANG Lihui, ZHANG Songshan, WANG Eryao, XU Zhaoxue, SHI Qiaoting . Identification of Candidate Genes for Cattle Reproductive Traits Using Selective Sweep Method[J]. Journal of Henan Agricultural Sciences, 2020 , 49(7) : 133 -138 . DOI: 10.15933/j.cnki.1004-3268.2020.07.018

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