Genome-wide scan for selective footprints and genes related to cold tolerance in Chantecler chickens  

作　　者：Nai-Yi Xu Wei Si Ming Li Mian Gong Jean-Marc Lariviere Hojjat Asadollahpour Nanaei Pei-Pei Bian Yu Jiang Xin Zhao 

机构地区：[1]Key Laboratory of Animal Genetics,Breeding and Reproduction of Shaanxi Province,College of Animal Science and Technology,Northwest A&F University,Yangling,Shaanxi 712100,China [2]Department of Animal Science,McGill University,Montreal,Québec H9X3V9,Canada [3]Institut de technologie agroalimentaire du Québec,La Pocatière,Québec G0R1Z0,Canada

出　　处：《Zoological Research》2021年第6期710-720,共11页动物学研究（英文）

基　　金：The study was supported by the James McGill Professorship(to X.Z.)and National Natural Science Foundation of China(31822052 to Y.J.)。

摘　　要：The Chantecler chicken,a unique Canadian indigenous breed,is well adapted to extremely cold environments.However,its genetic characteristics have not been well studied.Here,we analyzed the whole genomes of 10 Chantecler chickens and 121 worldwide chickens,which indicated that Chantecler chickens were derived from commercial chickens and exhibit a high level of inbreeding.Based on a genome-wide scan,we identified two vital candidate regions containing ME3 and ZNF536,which are related to fat metabolism and nervous system in cold adaptation,respectively.We also found that the genetic mechanism of cold adaptation in Chantecler chickens differed from that of chickens from other cold regions,such as northern China.Our study indicated that specialized commercial chickens in the early 20th century contained sufficient genetic diversity to adapt to extreme cold environments over a very short time.These findings enrich our understanding of the adaptive potential of commercial species.

关 键 词：Chantecler chickens Whole-genome resequencing Cold adaptation ME3 ZNF536 

分 类 号：S831.2[农业科学—畜牧学]