Genetic variation of Nigerian cattle inferred from maternal and paternal genetic markers

PeerJ

article

David H. Mauki¹  Adeniyi C. Adeola¹  Said I. Ng’ang’a¹  Abdulfatai Tijjani⁴  Ibikunle Mark Akanbi⁵  Oscar J. Sanke⁶  Abdussamad M. Abdussamad⁷  Sunday C. Olaogun⁸  Jebi Ibrahim⁹  Philip M. Dawuda^1,10  Godwin F. Mangbon^1,11  Paul S. Gwakisa^1,12  Ting-Ting Yin¹  Min-Sheng Peng¹  Ya-Ping Zhang¹ 

[1] State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences;Chinese Academy of Sciences, Sino-Africa Joint Research Center;University of Academy of Sciences, Kunming College of Life Science;School of Life Sciences, University of Nottingham;Ministry of Agriculture and Rural Development;Taraba State Ministry of Agriculture and Natural Resources;Department of Animal Science, Faculty of Agriculture, Bayero University;Department of Veterinary Medicine, University of Ibadan;College of veterinary medicine, department of theriogenology, University of agriculture;Department of Veterinary Surgery and Theriogenology, College of Veterinary Medicine, University of Agriculture Makurdi;Division of Veterinary Office;Department of Microbiology, Parasitology and Biotechnology/ Genome Science Center, Sokoine University of Agriculture;State Key Laboratory for Conservation and Utilization of Bio-Resource in Yunnan, School of Life Sciences, Yunnan University;Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences

关键词: Y-chromosome;    Genetic diversity;    Nigerian cattle;    West Africa;    mtDNA;   

DOI  :  10.7717/peerj.10607

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

The African cattle provide unique genetic resources shaped up by both diverse tropical environmental conditions and human activities, the assessment of their genetic diversity will shade light on the mechanism of their remarkable adaptive capacities. We therefore analyzed the genetic diversity of cattle samples from Nigeria using both maternal and paternal DNA markers. Nigerian cattle can be assigned to 80 haplotypes based on the mitochondrial DNA (mtDNA) D-loop sequences and haplotype diversity was 0.985 + 0.005. The network showed two major matrilineal clustering: the dominant cluster constituting the Nigerian cattle together with other African cattle while the other clustered Eurasian cattle. Paternal analysis indicates only zebu haplogroup in Nigerian cattle with high genetic diversity 1.000 ± 0.016 compared to other cattle. There was no signal of maternal genetic structure in Nigerian cattle population, which may suggest an extensive genetic intermixing within the country. The absence of Bos indicus maternal signal in Nigerian cattle is attributable to vulnerability bottleneck of mtDNA lineages and concordance with the view of male zebu genetic introgression in African cattle. Our study shades light on the current genetic diversity in Nigerian cattle and population history in West Africa.

【 授权许可】

CC BY