Genetic diversity and population structure of muscovy duck (Cairina moschata) from Nigeria
Adeniyi C. Adeola,
Foluke E. Sola-Ojo,
Yusuf A. Opeyemi,
Abel O. Oguntunji,
Lotanna Micah Nneji,
Muslim K. Ewuola,
Semiu F. Bello,
Wasiu A. Olaniyi,
Adeosun T. Adesoji,
Alex P. Karuno,
Oscar J. Sanke,
Ebiakpo Lucky Daniel
Affiliations
Adeniyi C. Adeola
Molecular Evolution and Genome Diversity, State Key Laboratory of Genetic Resources & Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
Foluke E. Sola-Ojo
Department of Animal Production, Faculty of Agriculture, University of Ilorin, Ilorin, Kwara, Nigeria
Yusuf A. Opeyemi
Department of Animal Production, Faculty of Agriculture, University of Ilorin, Ilorin, Kwara, Nigeria
Abel O. Oguntunji
Department of Animal Science and Fisheries Management, Bowen University, Iwo, Osun, Nigeria
Lotanna Micah Nneji
Department of Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey, United States
Muslim K. Ewuola
Animal Breeding and Genetics Unit/Department of Animal Science, University of Ibadan, Ibadan, Oyo, Nigeria
Semiu F. Bello
Department of Animal Genetics/Breeding and Reproduction/College of Animal Science, South China Agricultural University, Guangzhou, China
Wasiu A. Olaniyi
Department of Animal Science, Faculty of Agriculture, Adekunle Ajasin University, Akungba Akoko, Ondo State, Nigeria
Adeosun T. Adesoji
Department of Agricultural Education, Federal College of Education, Bichi, Kano, Nigeria
Alex P. Karuno
Molecular Evolution and Genome Diversity, State Key Laboratory of Genetic Resources & Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
Oscar J. Sanke
Taraba State Ministry of Agriculture and Natural Resources, Jalingo, Taraba, Nigeria
Ebiakpo Lucky Daniel
Department of Animal Science, University of Benin, Benin City, Nigeria
The domestic Muscovy duck (Cairina moschata) provide unique genetic resources patterned by both tropical environmental conditions and human activities, the evaluation of their genetic diversity and population structure will shade light on the mechanism of their remarkable adaptive capacities. We therefore analyzed the variation in mtDNA cytochrome b and nuclear DNA CYP2U1 sequences of 378 Nigerian Muscovy ducks (comprising of 287 de novo and 91 downloaded) plus 80 published sequences of Muscovy ducks from India. The results showed high haplotype diversity (0.800 ± 0.023) among Nigerian Muscovy duck populations with 91 distinct haplotypes for the nuclear DNA CYP2U1 gene but low (0.266 ± 0.033) for cytochrome b with 31 haplotypes. The median-joining networks of both markers grouped Nigerian Muscovy ducks into two; the first group consisting of only Nigerian Muscovy duck populations, and the second group Nigerian with Indian populations. Neutrality test results indicated that Nigerian populations experienced recent population expansion and/or genetic hitchhiking. A geographic signal was absent in line with previously studied poultry species in Nigeria. The most prominent haplotype dominated across all regions in Nigeria, which may be due to extensive genetic intermixing except for the Indian population (FST = 0.02550, P = 0.01075). This indicated low genetic differentiation between and within Nigerian Muscovy duck as revealed by the suitability of the nuclear DNA CYP2U1 gene.
