Differentiation of four indian aboriginal cattle populations revealed by SIR markers

Differentiation of four indian aboriginal cattle populations revealed by SIR markers Cattle are the most important livestock in India and play a pivotal role in agrarian economy. There are 34 recognized breeds of cattle and number of unexplored lesser known populations. The present study is a contribution towards determining genetic Variation and understanding the relationship among four lesser known populations. A total of 194 unrelated DNA samples from three cattle populations of Orissa (Binjharpuri, Ghumsuri, Motu) and Hill cattle of Kumaun (Kumauni) were collected from respective breeding tracts. Genotyping was done with 23 bovine microsatellite markers as suggested by International Society for Animal Genetics (ISAG) and FAO (DAD-IS) on automated sequencer. The average observed heterozygosity in the four populations lie within the narrow range of 0.623 ± 0.04 in Binjharpuri to 0.664 ± 0.03 in Kumauni. Mean estimates of observed and expected heterozygosity over all loci and breeds were 0.651 ± 0.02 and 0.720 ± 0.01, respectively. In the overall population, the homozygote excess (F IT) of 0.132 ± 0.03, was partly due to the genetic differentiation among breeds (F ST = 0.044 ± 0.01) and, to a larger extent, to a significant homozygote excess within breeds (F IS = 0.094 ± 0.03). The phylogenetic reconstruction from a UPGMA clustering based on Nei’s Standard genetic distance yielded a tree with Binjharpuri and Ghumsuri on a single node and Motu and Kumauni on separate nodes. The most probable clustering detected by STRUCTURE in population was three. Binjharpuri and Ghumsuri animals were assigned to one cluster with high proportion of membership. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Differentiation of four indian aboriginal cattle populations revealed by SIR markers

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SP MAIK Nauka/Interperiodica
Copyright © 2012 by Pleiades Publishing, Ltd.
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
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