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Genomic Dissection through Whole-Genome Resequencing of Five Local Pig Breeds from Shanghai, China

文献类型： 外文期刊

作者： Gao, Jun 1 ; Sun, Lingwei 1 ; Pan, Hongmei 4 ; Zhang, Shushan 1 ; Xu, Jiehuan 1 ; He, Mengqian 1 ; Zhang, Keqing 2 ; Zhou, Jinyong 2 ; Zhang, Defu 1 ; Wu, Caifeng 1 ; Dai, Jianjun 1 ;

作者机构： 1.Shanghai Acad Agr Sci, Inst Anim Husb & Vet Sci, Shanghai 201106, Peoples R China

2.Shanghai Municipal Key Lab Agrigenet & Breeding, Shanghai 201106, Peoples R China

3.Minist Agr & Rural Affairs, Key Lab Livestock & Poultry Resources Evaluat & Ut, Shanghai 201106, Peoples R China

4.Chongqing Acad Anim Sci, Chongqing 402460, Peoples R China

关键词： indigenous Shanghai pig breed; commercial pig breed; whole-genome resequencing; selective sweep analysis; genomic characteristics

期刊名称：ANIMALS （ 影响因子：3.0； 五年影响因子：3.2 ）

ISSN： 2076-2615

年卷期： 2023 年 13 卷 23 期

页码：

收录情况： SCI

摘要： Simple Summary Whole-genome resequencing was performed on five Shanghai local pig breeds, aiming to analyze their population's genetic structure and genomic characteristics. Through selective sweep analysis between the indigenous Shanghai pig breed and commercial pig breed populations, some of the selection genes and their polymorphisms in these two populations were identified and explored.Abstract China has rich genetic resources of local pig breeds. In this study, whole-genome resequencing was performed on five Shanghai local pig breeds, aiming to analyze their population genetic structure and unique genomic characteristics. Tens of millions of single nucleotide variants were obtained through the resequencing of a total of 150 individual pigs from five local pig breeds (Meishan, Fengjing, Shawutou, Pudong White, and Shanghai White) after mapping them with the pig reference genome of Sus scrofa 11.1. The results of admixture structure analysis also clearly demonstrated the genetic differences between the Shanghai local pig breeds and the three commercial pig breeds (Duroc, Landrace, and Yorkshire). The genetic infiltration of Landrace and Yorkshire pig breeds in the SHW breed was detected, which is consistent with the early history of crossbreeding in this breed. Selective sweep analysis between four indigenous Shanghai pig breed populations and three commercial pig breed populations identified 270 and 224 genes with selective signatures in the commercial and indigenous Shanghai pig populations, respectively. Six genes (TGS1, PLAG1, CHCHD7, LCORL, TMEM68, and TMEM8B) were found to be associated with animal growth in the commercial pig population through gene enrichment and protein-protein interaction analysis. In contrast, the MSRB3 gene in the indigenous Shanghai pig population was significantly under selection, which correlated with the long pendulous ear phenotype of the indigenous Shanghai pig population. In conclusion, this study is the first genomic profiling of five representative local pig breeds in Shanghai, which provides molecular genetic data and foundations for better conservation and utilization of local pig breed resources in Shanghai, China.

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