Genetic distances and relationships among four Sudanese autochthonous cattle breeds using RAPD molecular markers
2007
Ahmed, M.A., University of Khartoum, Khartoum (Sudan). Faculty of Animal Production | Sid-Ahmed, S.A., Sudan University of Science and Technology, Khartoum North (Sudan). Faculty of Agricultural Studies | Makkawi, A.A., Sudan University of Science and Technology, Khartoum North (Sudan). Faculty of Agricultural Studies | Adawy, S.S., Agricultural Genetic Engineering Research Institute (AGERI), ARC, Giza (Egypt) | El-Itriby, H.A., Agricultural Genetic Engineering Research Institute (AGERI), ARC, Giza (Egypt) | Yousif, G.M., Animal Production Research Centre, Kuku, Khartoum North (Sudan)
Random amplified polymorphic DNA (RAPD), employing 22 arbitrary decamer primers, was used to investigate the genetic similarity and genetic relationships between and within four local populations of Sudanese cattle; namely, Baggara (Nialawy), Nilotic (Majock), Butana and Kenana. The genetic similarity, using Jaccards coefficient, ranged from 78.4% to 84.8% with an average of 81.0% between populations and 95.9%, 92.2%, 93.3% and 88.7% within each of them, respectively. Cluster analysis, based on similarity matrices, using unweighed pair group method of arithmetic averages, distinguished two groups: The first encompassed Kenana and Butana and the second Baggara and Nilotic with a genetic relationship of 80%. The genetic relationship within each of the two groups was 82.0% and 85.0%, respectively. Within the populations, the dendrogram distinguished two subgroups within each of Baggara, Nilotic and Butana and distinguished three sub-groups within Kenana cattle. The degree of genetic relationship ranged from 86.0% to 95.0% between the various strains within populations. It is concluded that there is sufficient diversity between these populations to permit their conservation as separate breeds and there is also very strong evidence of strains within these populations
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