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IJBT Vol.09(2) [April 2010] >


Title: Genetic diversity among Indian Gir, Deoni and Kankrej cattle breeds based on microsatellite markers
Authors: Kale, D S
Rank, D N
Joshi, C G
Yadav, B R
Koringa, P G
Thakkar, K M
Tolenkhomba, T C
Solanki, J V
Keywords: Gene flow
genetic distance
heterozygosity
microsatellite
PIC
Zebu cattle
Issue Date: Apr-2010
Publisher: CSIR
Abstract: The present study was conducted to examine genetic diversity, genetic differentiation and genetic relationship among Gir, Deoni and Kankrej cattle breeds using microsatellite markers. The number of alleles observed at different loci ranged from 5 (HEL5) to 8 (CSRM60) with a total of 46 alleles across three breeds. The overall heterozygosity and polymorphic information content (PIC) values were 0.730 and 0.749, respectively. Nei’s standard genetic distance was least between Gir and Kankrej and highest between Deoni and Kankrej. In the analyzed loci, an overall significant deficit of heterozygotes across these breeds was found and it could be due to inbreeding within breeds. The overall genetic differentiation (FST) among breeds was moderate, but significantly different. All loci, except INRA035, contributed significantly to the overall differentiation. The highest FST values were found in HEL5 and lowest in INRA035. The overall Nem value indicated a high rate of genetic flow between the breeds, which is in agreement with their origin of close proximity in the geographical area.
Page(s): 126-130
ISSN: 0975-0967 (Online); 0972-5849 (Print)
Source:IJBT Vol.09(2) [April 2010]

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