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Barcoding type specimens helps to identify synonyms and an unnamed new species in Eumunida Smith, 1883 (Decapoda : Eumunididae)

AuthorsPuillandre, Nicolas; Macpherson, Enrique ; Lambourdière, Josie; Cruaud, Corinne; Boisselier-Dubayle, Marie-Catherine; Samadi, S.
Issue Date2011
PublisherCommonwealth Scientific and Industrial Research Organization (Australia)
CitationInvertebrate Systematics
AbstractThe primary purpose of DNA-barcoding projects is to generate an efficient expertise and identification tool. This is an important challenge to the taxonomy of the 21st century, as the demand increases and the expert capacity does not. However, identifying specimens using DNA-barcodes requires a preliminary analysis to relate molecular clusters to available scientific names. Through a case study of the genus Eumunida (Decapoda : Eumunididae), we illustrate how naming molecule-based units, and thus providing an accurate DNA-based identification tool, is facilitated by sequencing type specimens. Using both morphological and unlinked molecular markers (COI and 28S genes), we analysed 230 specimens from 12 geographic areas, covering two-thirds of the known diversity of the genus, including type specimens of 13 species. Most hypotheses of species delimitation are validated, as they correspond to molecular units linked to only one taxonomic name (and vice versa). However, a putative cryptic species is also revealed and three entities previously named as distinct species may in fact belong to a single one, and thus need to be synonymised. Our analyses, which integrate the current naming rules, enhance the a-taxonomy of the genus and provide an effective identification tool based on DNA-barcodes. They illustrate the ability
Description13 páginas, 2 figuras, 3 tablas.
Publisher version (URL)http://dx.doi.org/10.1071/IS11022
Appears in Collections:(CEAB) Artículos
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