Identification of a new potential native Indian cattle breed by population differentiation based on microsatellite marke
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Identification of a new potential native Indian cattle breed by population differentiation based on microsatellite markers Rekha Sharma1 · Sonika Ahlawat1 · Himani Sharma1 · R. L. Bhagat2 · P. K. Singh1 · M. S. Tantia1 Received: 5 May 2020 / Accepted: 1 July 2020 © Springer Nature B.V. 2020
Abstract India has a rich heritage of rearing cattle where farmers selected native cattle suitable to their local agro-ecological conditions for centuries. It is reflected in 50 indigenous breeds of cattle, besides many lesser known populations not explored so far. It is the need of the hour to characterize such populations to have prudent improvement and conservation options. Thus, present study was carried out to assess the genetic diversity and relationship between an unexplored local cattle population (Kathani) and four established cattle breeds of adjoining area (Gaolao, Kosali, Ongole and Motu) by using 20 FAO recommended microsatellite markers. High variability was recorded in the Kathani population with a total of 198 alleles that varied between 5 (ILSTS11, TGLA22, INRA05) and 17 (ILSTS34) with a mean of 9.9 ± 0.73. The average observed heterozygosity (Ho) was 0.658 ± 0.054. Heterozygote deficiency was not significant (FIS = 0.029 ± 0.063) indicating random mating prevalent across this population. Mean estimates of observed number of alleles and heterozygosity over all the loci and five populations were 9.73 ± 0.421 and 0.617 ± 0.022, respectively. In the overall populations, the homozygote excess (FIT) of 0.293 ± 0.032, was partly due to the homozygote excess within breeds (FIS = 0.121 ± 0.025) and to a larger extent due to high (0.05
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