Researching on the fine structure and admixture of the worldwide chicken population reveal connections between populations and important events in breeding history

Guo, Ying (author): Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi,China Agricultural University,Örjan Carlborg

Ou, Jen-Hsiang (author): Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi,Örjan Carlborg

Zan, Yanjun (author): Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi

Wang, Yuzhe (author)

Li, Huifang (author)

Zhu, Chunhong (author)

Chen, Kuanwei (author)

Zhou, Xin (author)

Hu, Xiaoxiang (author)

Carlborg, Örjan (author): Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi,Örjan Carlborg

(creator_code:org_t)

Related links:: https://doi.org/10.1...; show more...; https://uu.diva-port... (primary) (Raw object); https://onlinelibrar...; https://urn.kb.se/re...; https://doi.org/10.1...; show less...

Abstract Subject headings

Here, we have evaluated the general genomic structure and diversity and studied the divergence resulting from selection and historical admixture events for a collection of worldwide chicken breeds. In total, 636 genomes (43 populations) were sequenced from chickens of American, Chinese, Indonesian, and European origin. Evaluated populations included wild junglefowl, rural indigenous chickens, breeds that have been widely used to improve modern western poultry populations and current com-mercial stocks bred for efficient meat and egg production. In-depth characteriza-tions of the genome structure and genomic relationships among these populations were performed, and population admixture events were investigated. In addition, the genomic architectures of several domestication traits and central documented events in the recent breeding history were explored. Our results provide detailed insights into the contributions from population admixture events described in the historical literature to the genomic variation in the domestic chicken. In particular, we find that the genomes of modern chicken stocks used for meat production both in eastern (Asia) and western (Europe/US) agriculture are dominated by contributions from heavy Asian breeds. Further, by exploring the link between genomic selective divergence and pigmentation, connections to functional genes feather coloring were confirmed.

By the author/editor: Guo, Ying; Ou, Jen-Hsiang; Zan, Yanjun; Wang, Yuzhe; Li, Huifang; Zhu, Chunhong; show more...; Chen, Kuanwei; Zhou, Xin; Hu, Xiaoxiang; Carlborg, Örjan; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Biological Scien ...; and Evolutionary Bio ...

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