Testing the applicability of DNA barcoding for Mediterranean species of top-shells (Gastropoda, Trochidae, Gibbula s.l.).

Autor: Barco, Andrea, Evans, Julian, Schembri, PatrickJ., Taviani, Marco, Oliverio, Marco
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Zdroj: Marine Biology Research; Oct2013, Vol. 9 Issue 8, p785-793, 9p, 1 Diagram, 3 Charts, 1 Graph
Abstrakt: We employed the COI sequences from specimens of top-shells to: (a) test the applicability of COI as a barcode marker for the trochid genusGibbulas.l.; (b) provide a first taxonomically reliable data set of COI sequences useful for future studies; and (c) detect evidence of suspect intraspecific variability over a large geographical scale. We analysed a data set of 150 sequences from specimens morphologically ascribed to 17 putative species ofGibbulafrom the Mediterranean Sea and northeastern Atlantic, including the type species of 9 taxa traditionally considered as subgenera ofGibbulaand representing over 50% of the roughly two dozen Mediterranean species, and also provided the DNA barcode for the endangered Maltese top-shellGibbula nivosa. The analysis of the data set revealed that the COI is an effective barcode for the identification of the northeastern Atlantic top-shells, and also provides a tool to detect cryptic diversity. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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