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Abstract
Catla (Catla catla) is a one of the most harvested Indian major carps and is widely cultured fish species in Indian subcontinent. In the present study, genetic variability between hatchery and wild stocks of Catla was surveyed using sequence data of mitochondrial DNA of partial 307 bp of cytochrome b region. A total of 174 Catla individuals were examined from three different river basins and hatcheries. Significant genetic heterogeneity was observed for the sequence data (FST = 0.308, p ≤ 0.001). However, analysis of molecular variance (AMOVA) resulted in insignificant genetic differentiation among the samples of three rivers and culture zones (FCT = −0.10, p = 0.44). The result suggested a significant genetic variation within different riverine system, low genetic differentiation among samples from river basins and a lack of genetic variation in hatchery populations.
Acknowledgements
The authors are grateful to the DG, Indian Council of Agricultural Research for the financial support and encouragement. We are very thankful to Mr. Asim Kumar Jana for fish samples collection from different sites of India.
Disclosure statement
The authors has reported no conflicts of interest and the authors alone are responsible for content of this manuscript.