The genome landscape of indigenous African cattle

Kim, Jaemin, Hanotte, Olivier, Okeyo, Ally Mwai, Dessie, Tadelle, Bashir, Salim, Diallo, Boubacar, Agaba, Morris, Kim, Kwondo, Kwak, Woori, Sung, Samsun, Seo, Minseok, Jeong, Hyeonsoo, Taehyung, Kwon, Taye, Mengistie, Song, Ki-Duk, Lim, Dajeong, Cho, Seoae, Lee, Hyun-Jeong, Yoon, Duhak, Oh, Sung Jong, Kemp, Stephen, Lee, Hak-Kyo and Kim, Heebal (2017) The genome landscape of indigenous African cattle. Genome Biology, 18 . 34/1-34/14. ISSN 1474-760X

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Background: The history of African indigenous cattle and their adaptation to environmental and human selection pressure is at the root of their remarkable diversity. Characterization of this diversity is an essential step towards understanding the genomic basis of productivity and adaptation to survival under African farming systems.

Results: We analyze patterns of African cattle genetic variation by sequencing 48 genomes from five indigenous populations and comparing them to the genomes of 53 commercial taurine breeds. We find the highest genetic diversity among African zebu and sanga cattle. Our search for genomic regions under selection reveals signatures of selection for environmental adaptive traits. In particular, we identify signatures of selection including genes and/ or pathways controlling anemia and feeding behavior in the trypanotolerant N’Dama, coat color and horn development in Ankole, and heat tolerance and tick resistance across African cattle especially in zebu breeds.

Conclusions: Our findings unravel at the genome-wide level, the unique adaptive diversity of African cattle while emphasizing the opportunities for sustainable improvement of livestock productivity on the continent.

Item Type: Article
Keywords: African cattle, Genome, Adaptation, Diversity
Schools/Departments: University of Nottingham, UK > Faculty of Medicine and Health Sciences > School of Life Sciences
Identification Number:
Depositing User: Hanotte, Olivier
Date Deposited: 06 Mar 2017 10:32
Last Modified: 04 May 2020 18:34

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