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With a little help from DNA barcoding: investigating the diversity of Gastropoda from the Portuguese coast
Borges, L.M.S.; Hollatz, C.; Lobo, J.; Cunha, A.M.; Vilela, A.P.; Calado, G.; Coelho, R.; Costa, A.C.; Ferreira, M.S.G.; Costa, M.H.; Costa, F.O. (2016). With a little help from DNA barcoding: investigating the diversity of Gastropoda from the Portuguese coast. NPG Scientific Reports 6(20226): 11 pp. http://dx.doi.org/10.1038/srep20226
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322; e-ISSN 2045-2322
|   |
| Auteurs | | Top |
- Borges, L.M.S.
- Hollatz, C.
- Lobo, J.
- Cunha, A.M.
|
- Vilela, A.P.
- Calado, G.
- Coelho, R.
- Costa, A.C.
|
- Ferreira, M.S.G.
- Costa, M.H.
- Costa, F.O.
|
| Abstract |
The Gastropoda is one of the best studied classes of marine invertebrates. Yet, most species have been delimited based on morphology only. The application of DNA barcodes has shown to be greatly useful to help delimiting species. Therefore, sequences of the cytochrome c oxidase I gene from 108 specimens of 34 morpho-species were used to investigate the molecular diversity within the gastropods from the Portuguese coast. To the above dataset, we added available COI-5P sequences of taxonomically close species, in a total of 58 morpho-species examined. There was a good match between ours and sequences from independent studies, in public repositories. We found 32 concordant (91.4%) out of the 35 Barcode Index Numbers (BINs) generated from our sequences. The application of a ranking system to the barcodes yield over 70% with top taxonomic congruence, while 14.2% of the species barcodes had insufficient data. In the majority of the cases, there was a good concordance between morphological identification and DNA barcodes. Nonetheless, the discordance between morphological and molecular data is a reminder that even the comparatively well-known European marine gastropods can benefit from being probed using the DNA barcode approach. Discordant cases should be reviewed with more integrative studies. |
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