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Whole-genome resequencing reveals signatures of selection and timing of duck domestication
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- Zhang, Zebin (författare)
- China Agr Univ, Dept Anim Genet & Breeding, Coll Anim Sci & Technol, State Key Lab Anim Nutr,Natl Engn Lab Anim Breedi, Beijing, Peoples R China
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- Jia, Yaxiong (författare)
- Chinese Acad Agr Sci, Inst Anim Sci, Beijing, Peoples R China
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- Almeida, Pedro (författare)
- UCL, Dept Genet Evolut & Environm, London, England
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- (creator_code:org_t)
- 2018-04-09
- 2018
- Engelska.
- Ingår i: GigaScience. - : OXFORD UNIV PRESS. - 2047-217X. ; 7:4
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- Background: The genetic basis of animal domestication remains poorly understood, and systems with substantial phenotypic differences between wild and domestic populations are useful for elucidating the genetic basis of adaptation to new environments as well as the genetic basis of rapid phenotypic change. Here, we sequenced the whole genome of 78 individual ducks, from two wild and seven domesticated populations, with an average sequencing depth of 6.42X per individual. Results: Our population and demographic analyses indicate a complex history of domestication, with early selection for separate meat and egg lineages. Genomic comparison of wild to domesticated populations suggests that genes that affect brain and neuronal development have undergone strong positive selection during domestication. Our F-ST analysis also indicates that the duck white plumage is the result of selection at the melanogenesis-associated transcription factor locus. Conclusions: Our results advance the understanding of animal domestication and selection for complex phenotypic traits.
Ämnesord
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
Nyckelord
- duck
- domestication
- intensive selection
- neuronal development
- energy metabolism
- plumage colouration
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- Zhang, Zebin
- Jia, Yaxiong
- Almeida, Pedro
- Mank, Judith E.
- van Tuinen, Marc ...
- Wang, Qiong
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- Jiang, Zhihua
- Chen, Yu
- Zhan, Kai
- Hou, Shuisheng
- Zhou, Zhengkui
- Li, Huifang
- Yang, Fangxi
- He, Yong
- Ning, Zhonghua
- Yang, Ning
- Qu, Lujiang
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