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The genome landscape of indigenous African cattle

Domain:

agriculture

Record type:

paper
Creator:
JaeHanotte, OlivierOkeTadelle Dessie
Publisher:
fig
Host:avatar
Abstract 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 Nâ 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.

Visit

doi.orgfigshare.com

Languages

SangaSanga

Tags

MedicineMicrobiologyFOS: Biological sciencesGeneticsEvolutionary BiologyEcology69999 Biological Sciences not elsewhere classifiedMarine BiologyScience Policy110309 Infectious Diseases+1

Licenses

CC BY 4.0https://creativecommons.org/licenses/by/4.0

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