PMID- 33445473 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210126 IS - 2076-2615 (Print) IS - 2076-2615 (Electronic) IS - 2076-2615 (Linking) VI - 11 IP - 1 DP - 2021 Jan 12 TI - Whole Genome Sequencing Reveals the Effects of Recent Artificial Selection on Litter Size of Bamei Mutton Sheep. LID - 10.3390/ani11010157 [doi] LID - 157 AB - Bamei mutton sheep is a Chinese domestic sheep breed developed by crossing German Mutton Merino sheep and indigenous Mongolian sheep for meat production. Here, we focused on detecting candidate genes associated with the increasing of the litter size in this breeds under recent artificial selection to improve the efficiency of mutton production. We selected five high- and five low-fecundity Bamei mutton sheep for whole-genome resequencing to identify candidate genes for sheep prolificacy. We used the FST and XP-EHH statistical approach to detect the selective sweeps between these two groups. Combining the two selective sweep methods, the reproduction-related genes JUN, ITPR3, PLCB2, HERC5, and KDM4B were detected. JUN, ITPR3, and PLCB2 play vital roles in GnRH (gonadotropin-releasing hormone), oxytocin, and estrogen signaling pathway. Moreover, KDM4B, which had the highest FST value, exhibits demethylase activity. It can affect reproduction by binding the promoters of estrogen-regulated genes, such as FOXA1 (forkhead box A1) and ESR1 (estrogen receptor 1). Notably, one nonsynonymous mutation (p.S936A) specific to the high-prolificacy group was identified at the TUDOR domain of KDM4B. These observations provide a new opportunity to research the genetic variation influencing fecundity traits within a population evolving under artificial selection. The identified genomic regions that are responsible for litter size can in turn be used for further selection. FAU - Yao, Yaxin AU - Yao Y AD - Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China. FAU - Pan, Zhangyuan AU - Pan Z AD - Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China. FAU - Di, Ran AU - Di R AD - Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China. FAU - Liu, Qiuyue AU - Liu Q AD - Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China. FAU - Hu, Wenping AU - Hu W AUID- ORCID: 0000-0002-8962-7541 AD - Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China. FAU - Guo, Xiaofei AU - Guo X AD - Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China. AD - Tianjin Institute of Animal Sciences, Tianjin 300381, China. FAU - He, Xiaoyun AU - He X AD - Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China. FAU - Gan, Shangquan AU - Gan S AD - State Key Laboratory of Sheep Genetic Improvement and Healthy Production, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi 832000, China. FAU - Wang, Xiangyu AU - Wang X AD - Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China. FAU - Chu, Mingxing AU - Chu M AD - Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China. LA - eng GR - 2016ZX08009-003-006/qiuyue liu/ PT - Journal Article DEP - 20210112 PL - Switzerland TA - Animals (Basel) JT - Animals : an open access journal from MDPI JID - 101635614 PMC - PMC7827510 OTO - NOTNLM OT - Bamei mutton sheep OT - breeding OT - litter size OT - selection signal analysis OT - whole-genome sequencing COIS- The authors declare no conflict of interest. EDAT- 2021/01/16 06:00 MHDA- 2021/01/16 06:01 PMCR- 2021/01/12 CRDT- 2021/01/15 01:01 PHST- 2020/12/07 00:00 [received] PHST- 2021/01/05 00:00 [revised] PHST- 2021/01/06 00:00 [accepted] PHST- 2021/01/15 01:01 [entrez] PHST- 2021/01/16 06:00 [pubmed] PHST- 2021/01/16 06:01 [medline] PHST- 2021/01/12 00:00 [pmc-release] AID - ani11010157 [pii] AID - animals-11-00157 [pii] AID - 10.3390/ani11010157 [doi] PST - epublish SO - Animals (Basel). 2021 Jan 12;11(1):157. doi: 10.3390/ani11010157.