Studies on mt DNA Cytochrome c-oxidase subunit 1 (COI) gene locus for identifying species of Capitella capitata

Author(s): K. Samidurai*, M. Sellappan and M. Rajasekarapandian

Abstract: This study deals with barcode sequence obtained from C. capitata has been submitted to NCBI database and the sequence accession number assigned is AC171908. The results clearly suggest that it seem phylogeography was evident from the phylogram as closely related geographical species was placed side by side in the tree i.e. C. capitata of Pichavaram and Vellar, when compared to distance geographic species i.e. C. capitata of Gulf of mannar or USA waters. It may be expected due to its geographical variations. Hence Cytochrome oxidase could be the potential barcode for C. capitata. However, the sequences obtained for this species from USA waters showed more variations. Molecular taxonomic studies clearly indicate that there is COI gene of C. capitata carry phylogeographical signals. Information on phylogeography will be a potential tool solving in future conflicts on origin of organisms.

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