Assessing genomic diversity and signatures of selection in Pinan cattle using whole-genome sequencing data
文献类型： 外文期刊
作者： Zhang, Shunjin 1 ; Yao, Zhi 1 ; Li, Xinmiao 1 ; Zhang, Zijing 2 ; Liu, Xian 3 ; Yang, Peng 1 ; Chen, Ningbo 1 ; Xia, Xiaoting 1 ; Lyu, Shijie 2 ; Shi, Qiaoting 2 ; Wang, Eryao 2 ; Ru, Baorui 3 ; Jiang, Yu 1 ; Lei, Chuzhao 1 ; Chen, Hong 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 Acad Agr Sci, Inst Anim Husb & Vet Sci, Zhengzhou 450002, Henan, Peoples R China
3.Henan Prov Anim Husb Gen Stn, Zhengzhou 450008, Henan, Peoples R China
关键词： Pinan cattle; WGS; Genetic diversity; Population Structure; DCMS
期刊名称：BMC GENOMICS （ 影响因子：4.547； 五年影响因子：4.931 ）
ISSN： 1471-2164
年卷期： 2022 年 23 卷 1 期
页码：
收录情况： SCI
摘要： Background Crossbreeding is an important way to improve production beef cattle performance. Pinan cattle is a new hybrid cattle obtained from crossing Piedmontese bulls with Nanyang cows. After more than 30 years of cross-breeding, Pinan cattle show a variety of excellent characteristics, including fast growth, early onset of puberty, and good meat quality. In this study, we analyzed the genetic diversity, population structure, and genomic region under the selection of Pinan cattle based on whole-genome sequencing data of 30 Pinan cattle and 169 published cattle genomic data worldwide. Results Estimating ancestry composition analysis showed that the composition proportions for our Pinan cattle were mainly Piedmontese and a small amount of Nanyang cattle. The analyses of nucleotide diversity and linkage disequilibrium decay indicated that the genomic diversity of Pinan cattle was higher than that of European cattle and lower than that of Chinese indigenous cattle. De-correlated composite of multiple selection signals, which combines four different statistics including theta pi, CLR, F-ST, and XP-EHH, was computed to detect the signatures of selection in the Pinan cattle genome. A total of 83 genes were identified, affecting many economically important traits. Functional annotation revealed that these selected genes were related to immune (BOLA-DQA2, BOLA-DQB, LSM14A, SEC13, and NAALADL2), growth traits (CYP4A11, RPL26, and MYH10), embryo development (REV3L, NT5E, CDX2, KDM6B, and ADAMTS9), hornless traits (C1H21orf62), and climate adaptation (ANTXR2). Conclusion In this paper, we elucidated the genomic characteristics, ancestry composition, and selective signals related to important economic traits in Pinan cattle. These results will provide the basis for further genetic improvement of Pinan cattle and reference for other hybrid cattle related studies.
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