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Asian Journal of Biotechnology
Year: 2015  |  Volume: 7  |  Issue: 2  |  Page No.: 71 - 79

Genetic Diversity between Populations of the Genus Schistura McClelland from the Garhwal and Kumaun Region Using RAPD Marker

R.K. Negi and Bheem Dutt Joshi    

Abstract: Genetic based study provide emphasis on the population study of geographically isolated population, gene flow among them and evolutionary history of the species. In the present study, we aimed to detect the genetic variations in species of genus Schistura from Uttarakhand. Very little is known for the pattern of distribution and genetic diversity of the species of genus Schistura from the Garhwal and Kumaun region. Out of six primer only four primers were used to generate the fragments patterns from the samples collected. Polymorphism within and between the populations were assayed and total 60 bands were amplified ranging from 1-150 kb. Maximum number of bands was observed in Schistura montanus from the Srinagar, Garhwal and Uttarkashi regions. Total 60 bands were amplified in the all four primer with high percentage of polymorphic loci 50% Schistura montanus from Garhwal region and 28.8% in the S. montanus from the Kumaun region were observed. The level of heterozygosity were found 0.006-0.18 in the all three species. The percentage of polymorphism was 50% within the populations and high heterozygosity the sample of S. montanus when compared with other species. Observed pattern of RAPD markers reveals that the samples from the Garhwal region exhibit high diversity and used four primers are sufficient to distinguish the different population in the both region except the samples of the S. gangiticus of Garhwal region.

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