Origins,timing and introgression of domestic geese revealed by whole genome data  

作　　者：Junhui Wen Haiying Li Huie Wang Jincheng Yu Tao Zhu Jinxin Zhang Xinghua Li Zhihua Jiang Zhonghua Ning Lujiang Qu 

机构地区：[1]Department of Animal Genetics and Breeding,National Engineering Laboratory for Animal Breeding,College of Animal Science and Technology,China Agricultural University,Beijing,China [2]College of Animal Science,Xinjiang Agricultural University,Urumqi,China [3]Xinjiang Production&Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin,Alar,Xinjiang,China [4]College of Animal Science,Tarim University,Alar,Xinjiang,China [5]Liaoning Academy of Agricultural Sciences,Shenyang,China [6]Department of Animal Sciences,Washington State University,Pulman,USA

出　　处：《Journal of Animal Science and Biotechnology》2023年第3期936-949,共14页畜牧与生物技术杂志（英文版）

基　　金：funded by the Open Project of Xinjiang Production&Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin;the National Nature Science Foundation of China (grant numbers:BRZD2104 and 31960648);the Joint Plan of Liaoning Province in the field of Livelihood Science and Technology (Rural Revitalization Science and Technology Support)。

摘　　要：Background Geese are among the most important poultry species in the world.The current generally accepted hypothesis is that the European domestic geese originated from greylag geese(Anser anser),and Chinese domestic geese have two origins,most of which originated from swan geese(Anser cygnoides),and the Yili goose originated from greylag geese.To explain the origin and demographic history of geese,we selected 14 goose breeds from Europe and China and wild populations of swan and greylag geese,and whole genome sequencing data were obtained for 74 samples.Results Population structure analysis and phylogenetic trees showed that the wild ancestor of Chinese domestic geese,except for Yili,is the swan geese,and the wild ancestor of Chinese Yili and European domestic geese is greylag geese.Analysis of the demographic history suggests that the domestication of Chinese geese occurred~3499 years ago and that of the European geese occurred~7552 years ago.Furthermore,gene flow was observed between domestic geese and their wild ancestors.Analysis of introgression showed that Yili geese had been introgressed by Chinese domestic geese,and the body size of Yili geese may be influenced by introgression events of some growthrelated genes,including IGF-1.Conclusions Our study provides evidence for the origin of geese at the genome-wide level and advances the understanding of the history of goose domestication and the traits affected by introgression events.

关 键 词：DOMESTICATION GOOSE INTROGRESSION PHYLOGENY 

分 类 号：S835.2[农业科学—畜牧学]