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Whole-genome resequencing of wild and domestic sheep identifies genes associated with morphological and agronomic traits

Li, Xin, Yang, Ji, Shen, Min, Xie, Xing-Long, Liu, Guang-Jian, Xu, Ya-Xi, Lv, Feng-Hua, Yang, Hua, Yang, Yong-Lin, Liu, Chang-Bin, Zhou, Ping, Wan, Peng-Cheng, Zhang, Yun-Sheng, Gao, Lei, Yang, Jing-Quan, Pi, Wen-Hui, Ren, Yan-Ling, Shen, Zhi-Qiang, Wang, Feng, Deng, Juan, Xu, Song-Song, Salehian-Dehkordi, Hosein, Hehua, Eer, Esmailizadeh, Ali, Dehghani-Qanatqestani, Mostafa, Štěpánek, Ondřej, Weimann, Christina, Erhardt, Georg, Amane, Agraw, Mwacharo, Joram M., Han, Jian-Lin, Hanotte, Olivier, Lenstra, Johannes A., Kantanen, Juha, Coltman, David W., Kijas, James W., Bruford, Michael W., Periasamy, Kathiravan, Wang, Xin-Hua and Li, Meng-Hua 2020. Whole-genome resequencing of wild and domestic sheep identifies genes associated with morphological and agronomic traits. Nature Communications 11 (1) , 2815. 10.1038/s41467-020-16485-1

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Understanding the genetic changes underlying phenotypic variation in sheep (Ovis aries) may facilitate our efforts towards further improvement. Here, we report the deep resequencing of 248 sheep including the wild ancestor (O. orientalis), landraces, and improved breeds. We explored the sheep variome and selection signatures. We detected genomic regions harboring genes associated with distinct morphological and agronomic traits, which may be past and potential future targets of domestication, breeding, and selection. Furthermore, we found non-synonymous mutations in a set of plausible candidate genes and significant differences in their allele frequency distributions across breeds. We identified PDGFD as a likely causal gene for fat deposition in the tails of sheep through transcriptome, RT-PCR, qPCR, and Western blot analyses. Our results provide insights into the demographic history of sheep and a valuable genomic resource for future genetic studies and improved genome-assisted breeding of sheep and other domestic animals.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Publisher: Nature Research
ISSN: 2041-1723
Date of First Compliant Deposit: 8 June 2020
Date of Acceptance: 4 May 2020
Last Modified: 09 Jun 2020 09:30

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