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Genetic diversity and signatures of selection in BoHuai goat revealed by whole-genome sequencing

文献类型: 外文期刊

作者: Yao, Zhi 1 ; Zhang, Shunjin 1 ; Wang, Xianwei 2 ; Guo, Yingwei 1 ; Xin, Xiaoling 3 ; Zhang, Zijing 3 ; Xu, Zejun 2 ; Wang, Eryao 3 ; Jiang, Yu 1 ; Huang, Yongzhen 1 ;

作者机构: 1.Northwest A&F Univ, Coll Anim Sci & Technol, Key Lab Anim Genet Breeding & Reprod Shaanxi Prov, 22 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China

2.Henan Prov Anim Husb Gen Stn, Zhengzhou 450008, Henan, Peoples R China

3.Henan Acad Agr Sci, Inst Anim Husb & Vet Sci, Zhengzhou 450002, Henan, Peoples R China

关键词: BoHuai goat; WGS; Genetic diversity; Population structure; Selection

期刊名称:BMC GENOMICS ( 影响因子:4.4; 五年影响因子:4.7 )

ISSN: 1471-2164

年卷期: 2023 年 24 卷 1 期

页码:

收录情况: SCI

摘要: BackgroundCross breeding is an important way to improve livestock performance. As an important livestock and poultry resource in Henan Province of China, Bohuai goat was formed by crossing Boer goat and Huai goat. After more than 20 years of breeding, BoHuai goats showed many advantages, such as fast growth, good reproductive performance, and high meat yield. In order to better develop and protect Bohuai goats, we sequenced the whole genomes of 30 BoHuai goats and 5 Huai goats to analyze the genetic diversity, population structure and genomic regions under selection of BoHuai goat. Furthermore, we used 126 published genomes of world-wide goat to characterize the genomic variation of BoHuai goat.ResultsThe results showed that the nucleotide diversity of BoHuai goats was lower and the degree of linkage imbalance was higher than that of other breeds. The analysis of population structure showed that BoHuai goats have obvious differences from other goat breeds. In addition, the BoHuai goat is more closely related to the Boer goat than the Huai goat and is highly similar to the Boer goat. Group by selection signal in the BoHuai goat study, we found that one region on chromosome 7 shows a very strong selection signal, which suggests that it could well be the segment region under the intense artificial selection results. Through selective sweeps, we detected some genes related to important traits such as lipid metabolism (LDLR, STAR, ANGPTL8), fertility (STAR), and disease resistance (CD274, DHPS, PDCD1LG2).ConclusionIn this paper, we elucidated the genomic variation, ancestry composition, and selective signals related to important economic traits in BoHuai goats. Our studies on the genome of BoHuai goats will not only help to understand the characteristics of the crossbred but also provide a basis for the improvement of cross-breeding programs.

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