Cited by 264Genetic and phenotypic traits in livestockLivestock Farming and ManagementGenetic diversity and population structure

Geographic distribution and frequency of a taurine Bos taurus and an indicine Bos indicus Y specific allele amongst sub‐Saharan African cattle breeds

Hanotte, O., Tawah, C. L., Bradley, D. G., Okomo, M., Verjee, Y., Ochieng, J., Rege, J. E. O.·2000·Molecular Ecology

Abstract

We report for the first time, and for the whole of sub-Saharan Africa, the geographical distribution and the frequency of an indicine and a taurine Y specific allele amongst African cattle breeds. A total of 984 males from 69 indigenous African populations from 22 countries were analysed at the microsatellite locus INRA 124. The taurine allele is probably the oldest one on the continent. However, the taurine and the indicine alleles were present in 291 males (30%), and 693 males (70%), respectively. More particularly, 96% of zebu males (n = 470), 50% of taurine males (n = 263), 29% of sanga males (crossbreed Bos taurus x Bos indicus, n = 263) and 95% of zebu x sanga crossbred males (n = 56) had the indicine allele. The Borgou, a breed classified as zebu x taurine cross showed only the zebu allele (n = 12). The indicine allele dominates today in the Abyssinian region, a large part of the Lake Victoria region and the sahelian belt of West Africa. All the sanga males (n = 64) but only one from the Abyssinian region had the indicine allele. The taurine allele is the commonest only among the sanga breeds of the southern African region and the trypanotolerant taurine breeds of West Africa. In West Africa and in the southern Africa regions, zones of introgression were detected with breeds showing both Y chromosome alleles. Our data also reveal a pattern of male zebu introgression in Mozambique and Zimbabwe, probably originating from the Mozambique coast. The sanga cattle from the Lake Victoria region and the Kuri cattle of Lake Chad, cattle populations surrounded by zebu breeds were, surprisingly, completely devoid of the indicine allele. Human migration, phenotypic preferences by the pastoralists, adaptation to specific habitats and to specific diseases are the main factors explaining the present-day distribution of the alleles in sub-Saharan Africa.

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Crossref · 10.1046/j.1365-294x.2000.00858.x

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  • Zebu cattle spread westward from the Abyssinian region across the continent and penetrated south to Zambia, forming two major hybrid zones of taurine and zebu cattle in West and Southern Africa.

    “Zebu cattle spread westward from the Abyssinian region across the continent and penetrated south to Zambia, forming two major hybrid zones of taurine and zebu cattle in West and Southern Africa [48,49,50].”
  • Pure African taurine breeds are found exclusively in West Africa, largely due to their unique resistance to trypanosomosis, while Sanga breeds have been preserved through selective breeding preferences and geographic isolation.

    “Pure African taurine breeds are found exclusively in West Africa [51], largely due to their unique resistance to trypanosomosis, while Sanga breeds have been preserved through selective breeding preferences and geographic isolation [49].”
  • The taurine admixture in Sheko is likely a legacy of the first taurine occurrence on the African continent.

    “This taurine admixture is likely a legacy of the first taurine occurrence on the African continent (Hanotte et al., 2000; Salim et al., 2014).”

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Authors
Hanotte, O., Tawah, C. L., Bradley, D. G., Okomo, M., Verjee, Y., Ochieng, J., & Rege, J. E. O.
Affiliations
  • International Livestock Research Institute (KE)
  • African Development Bank Group (CI)
  • Trinity College Dublin (IE)
Corresponding author
Hanotte, O.
Venue
Molecular Ecology
Publisher
Wiley
Published
2000-04
Volume
9
Issue
4
Pages
387-396
ISSN
  • 0962-1083 (ISSN-L)
  • 1365-294X
OpenAlex
W2126616700
Cited by
257
References
28
Citations by year
2026: 11 · 2025: 8 · 2024: 9 · 2023: 11 · 2022: 8 · 2021: 5 · 2020: 9 · 2019: 7 · 2018: 9 · 2017: 9 · 2016: 7 · 2015: 9 · 2014: 13 · 2013: 4 · 2012: 9
FWCI
4.49
Type
journal article
Language
en
Open access
closed
Locations
  • Molecular Ecology (publishedVersion)
  • PubMed (publishedVersion)
  • CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research) (submittedVersion)
  • University of Nairobi Research Archive (University of Nairobi) (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and phenotypic traits in livestock
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Livestock Farming and Management
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic diversity and population structure
Keywords
Y chromosome, cattle, Bos indicus, Sanga cattle, crossbreeds, allele frequency, geographic distribution, human migration, pastoralism, trypanotolerant cattle, Lake Victoria region, Lake Chad
MeSH terms
Africa, Africa, Northern, Alleles, Animals, Breeding, Cattle, Gene Frequency, Genetics, Population, Male, Microsatellite Repeats

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