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comparative population genomics reveals genetic basis underlying body size of domestic chickens

Journal of Molecular Cell Biology 2016年第6期8卷 542-552页

作者： Ming-Shan Wang Yong-Xia Huo Yan Li Newton OOtecko Ling-Yan Su Hai-Bo Xu Shi-Fang Wu Min-Sheng Peng He-Qun Liu Lin Zeng David M.Irwin Yong-Gang Yao Dong-Dong Wu Ya-Ping Zhang State Key Laboratory of Genetic Resources and Evolution Yunnan Laboratory of Molecular Biology of Domestic AnimalsKunming Institute of ZoologyChinese Academy of SciencesKunming 650223China Kunming College of Life Science University of Chinese Academy of SciencesKunming 650204China College of Life Science Anhui UniversityHefei 230601China Laboratory for Conservation and Utilization of Bio-Resource Yunnan UniversityKunming 650091China Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences&Yunnan Province Kunming Institute of ZoologyKunming 650223China Department of Laboratory Medicine and Pathobiology University of TorontoTorontoOntario M5S 1A8Canada Banting and Best Diabetes Centre University of TorontoTorontoOntario M5G 2C4Canada

Body size is the most important economic trait for animal production and *** hundreds of loci have been reported to be associated with growth trait and body weight in *** loci are mapped to large genomic regions due to the low density and limited number of genetic markers in previous ***,we employed comparative population genomics to identify genetic basis underlying the small body size of Yuanbao chicken(a famous ornamental chicken)based on 89 whole *** most significant signal was mapped to the BMP10 gene,whose expression was upregulated in the Yuanbao *** of BMP10 induced a significant decrease in body length by inhibiting angiogenic vessel development in *** addition,three other loci on chromosomes 1,2,and 24 were also identified to be potentially involved in the development of body *** results provide a paradigm shift in identification of novel loci controlling body size variation,availing a fast and efficient *** loci,particularly BMP10,add insights into ongoing research of the evolution of body size under artificial selection and have important implications for future chicken breeding.

关键词： body size artificial selection comparative population genomics domestication

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