Impact of environmental and social factors on genotypic and phenotypic diversity of some local Sudanese sheep breeds


This mini review aimed to discuss and compare the findings of a genotypic study done by Gor-nas et al., 2011 and some environmental and social factors discussed previously in Sudan. The main conclusion was the agreement of the genotypic analysis with the previous observations done on the phenotypic part. The important recommendation was to support the nomadic system so as to preserve the biodiversity of livestock in Sudan.


Sheep Breeds

Share and Cite:

Gornas, N. and Hussein, A. (2012) Impact of environmental and social factors on genotypic and phenotypic diversity of some local Sudanese sheep breeds. Open Journal of Animal Sciences, 2, 127-131. doi: 10.4236/ojas.2012.22018.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Uerpmann, H.P. (1979) Probleme der Neolithisierung des Mit-telmeerraums. Tubinger Atlas des Vorderen Orients, B.28. Ludwig Reichert, Wiesbaden.
[2] Ryder, M.L. (1984) Sheep. In: Mason, I.L., Ed., Evolution of Domesticated Animals. Longman, New York, 63- 84.
[3] Clutton-Brock, J. (1999) A natural history of domesticated mammals. Cambridge University Press, Cambridge.
[4] Vigne, J.-D., Carrere, I. and Gui-laine, J. (2003) Unstable status of early domestic ungulates in the Near East: The example of Shillourokambos. Bulletin Correspondance Héllenique, 43, 239-251.
[5] Walling, G.A., Wilson, A.D., Mcteir, B.L. and Bishop, S.C. (2004) Increased heterozygosity and allele variants are seen in Texel compared to Suffolk sheep. Heredity, 92, 102-109. doi:10.1038/sj.hdy.6800389
[6] Arranz, J.J., Bayon, Y. and San Primitivo, F. (1998) Genetic relationships among Spanish sheep using microsatellites. Animal Genetics, 29, 435-440. doi:10.1046/j.1365-2052.1998.296371.x
[7] Diez-Tascon, C., Littlejohn, R.P., Almeida, P.A. and Crowford, A.M. (2000) Genetic variation within the merino sheep: Analysis of closely related populations using microsatellites. Animal Genetics, 31, 243-251. doi:10.1046/j.1365-2052.2000.00636.x
[8] Tapio, M., Miseikeine, I., Vikki, J. and Kantanen, J. (2003) Comarison of microsatellite and blood protein diversity in sheep: Inconsistencies in fragmented breeds. Molecular Ecology, 12, 2045-2056. doi:10.1046/j.1365-294X.2003.01893.x
[9] Chu, M.X., Wang, J.Z., Wang, A.G., Li, N. and Fu, J.L. (2003) Association analysis between five microsatellite loci and litter size in small tail han sheep. Asian-Austral- asian Journal of Animal Sciences, 16, 1555-1559.
[10] Toro, M.A., Barragan, C. and Ovilo, C. (2005) Estimation of genetic variability of the founder population in a conservation scheme using microsatellites. Animal Genetics, 34, 226-228. doi:10.1046/j.1365-2052.2003.00988.x
[11] Holsinger, K.E. and Weir, B.S. (2009) Genetics in geographically structured populations: Defining, estimating and interpreting F(ST). Nature Reviews Genetics, 10, 639- 649.
[12] Churchill, W.S. (1899) The river war. Landborough Publications Ltd., London.
[13] Mufarrih, M.E. (1991) Sudan Desert sheep: Their origin, ecology and production potential. World Animal Review, 66.
[14] Gornas, N., Weimann, C., El Hussien, A. and Erhardt, G. (2011) Genetic characterization of local Sudanese sheep breeds using DNA markers. Small Ruminant Research, 95, 27-33.
[15] Tanmia Independent Consultants (1977) Feasibility study for El Waha animal production project. Interim Report, Sudanese-Kuwaiti Animal production Co. Ltd., Khar-toum.
[16] Suleiman, A.H. and Eisawi, M.A. (1984) Reproductive performance of some tribal breeds of Sudan Desert sheep under irrigated conditions. Sudan Journal of Veterinary Science & Animal Husbandry, 24, 8-9.
[17] Sudanese Standards and Metrology Organization (2007) Annual report of animal resources in Sudan, part 1, 8-9.
[18] Adebambo, O., Williams, J.L., Blott, S. and Urquhart, B. (2003) Genetic relationships between Native Sheep breeds in Nigeria based on microsatellite DNA polymorphisms. Animal Genetic Resources Information, 34, 27-39.

Copyright © 2024 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.