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Published on: January 20, 2018
Genetic characterization of Silond catfish, Silonia silondia (Hamilton, 1822) inferred from two mitochondrial markers
Sangeeta Mandal1, J K Jena1, Rajeev K Singh1
1a Division of Fish Conservation , National Bureau of Fish Genetic Resources , Lucknow-226002 , UP , India and.
Abstract:
Silonia silondia is a commercially important food fish. Samples collected through commercial catches from four rivers in India are described by sequence analysis of two molecular markers. Cytochrome b (1140 bp) and ATPase 6/8 (842 bp) genes were analyzed, which represented high level of genetic differentiation within populations of S. silondia. The sequence alignments of cytochrome b and ATPase 6/8 genes revealed 13 and 11 different haplotypes, respectively. The sequences of both the mitochondrial regions revealed high haplotype and low nucleotide diversities. The patterns of genetic diversity and haplotype networks clearly indicated two distinct mitochondrial lineages, however, haplotypes from both the lineages were not specifically assigned to any population. The results confirm the utility of molecular markers generating baseline information, useful for planning effective strategies for conservation, management and sustainability of Silond catfish fishery.
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