Whole-genome sequencing reveals the artificial selection and local environmental adaptability of pigeons (Columba livia)
文献类型： 外文期刊
作者： Hou, Haobin 1 ; Wang, Xiaoliang 1 ; Ding, Weixing 1 ; Xiao, Changfeng 1 ; Cai, Xia 1 ; Lv, Wenwei 2 ; Tu, Yingying 2 ; Zh 1 ;
作者机构： 1.Shanghai Acad Agr Sci, Shanghai, Peoples R China
2.Natl Poultry Engn Res Ctr, Shanghai, Peoples R China
3.Shanghai Jinhuang Pigeon Co, Shanghai, Peoples R China
关键词： artificial selection; genome sweep; local environmental adaptability; pigeon; whole-genome sequences
期刊名称：EVOLUTIONARY APPLICATIONS （ 影响因子：5.183； 五年影响因子：5.725 ）
ISSN： 1752-4571
年卷期：
页码：
收录情况： SCI
摘要： To meet human needs, domestic pigeons (Columba livia) with various phenotypes have been bred to provide genetic material for our research on artificial selection and local environmental adaptation. Seven pigeon breeds were resequenced and can be divided into commercial varieties (Euro-pigeon, Shiqi, Shen King, Taishen, and Silver King), ornamental varieties (High Fliers), and local varieties (Tarim pigeon). Phylogenetic analysis based on population resequencing showed that one group contained local breeds and ornamental pigeons from China, whereas all commercial varieties were clustered together. It is revealed that the traditional Chinese ornamental pigeon is a branch of Tarim pigeon. Runs of homozygosity (ROH) and linkage disequilibrium (LD) analyses revealed significant differences in the genetic diversity of the three types of pigeons. Genome sweep analysis revealed that the selected genes of commercial breeds were related to body size, reproduction, and plumage color. The genomic imprinting genes left by the ornamental pigeon breeds were mostly related to special human facial features and muscular dystrophy. The Tarim pigeon has evolved genes related to chemical ion transport, photoreceptors, oxidative stress, organ development, and olfaction in order to adapt to local environmental stress. This research provides a molecular basis for pigeon genetic resource evaluation and genetic improvement and suggests that the understanding of adaptive evolution should integrate the effects of various natural environmental characteristics.
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