Molecular identification of ornamental loaches (Cypriniformes, Cobitoidei) of North East India using mitochondrial genes
2022
Goswami, Mukunda | Pavan Kumar, A. | Patil, Grishma S. | George, Trinica | Nath, Rupak | Bhuyan, R.N. | Siva, C. | Laskar, M.A. | Sumer, Samson
North East (NE) India, referred as Biodiversity Hot Spot, is the natural habitat of a large variety of ornamental fishes. Among all the ornamental fishes available in NE India, Loaches are of great importance in the ornamental fish trade. In this study, 38 specimens from ten loaches species of North-eastern India are characterized using three mitochondrial genes i.e. cytochrome c oxidase subunit I (COI), 16S rRNA and cytochrome b (Cyt b). The average genetic distance values for all the three mitochondrial genes have increased gradually when moving up from species to genus to family levels. Among the genes, Cyt b gene showed relatively higher genetic distance values than mitochondrial 16S rRNA and COI genes. Some of the specimens of Botia and Lepidocephalichthys showed higher intraspecific genetic distance values compared to other specimens under analysis.
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