期刊
INVERTEBRATE SYSTEMATICS
卷 26, 期 5-6, 页码 561-571出版社
CSIRO PUBLISHING
DOI: 10.1071/IS12020
关键词
16S rDNA; Anomura; barcoding COI; molecular systematics; western Atlantic
资金
- Pro-Reitoria de Pesquisa da Universidade de Sao Paulo [Proc. 2009.1.1233.59.5]
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico-CNPq [Proc. 123990/2010-16]
- FAPESP [Proc. 2012/06300-3]
- CNPq [Proc. 301359/2007-5, 473050/2007-2, 302748/2010-5]
- CAPES [Proc. 02630/2009-5]
- Department of Biology and Postgraduate Program in Comparative Biology of the FFCLRP/USP
- [FAPESP Tematico Biota 2010/50188-8]
- [Colecoes Cientificas 2009/54931-0]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [10/50188-8, 12/06300-3, 09/54931-0] Funding Source: FAPESP
The taxonomic status of the species Clibanarius sclopetarius (Herbst, 1796) and Clibanarius vittatus (Bosc, 1802), which have sympatric biogeographical distributions restricted to the western Atlantic Ocean, is based only on differences in the colour pattern of the walking legs of adults. Their morphological similarity led to the suggestion that they be synonymised. In order to investigate this hypothesis, we included species of Clibanarius Dana, 1892 in a molecular phylogenetic analysis of partial sequences of the mitochondrial 16S rDNA gene and the COI barcode region. In addition, we combined the molecular results with morphological observations obtained from several samples of these two species. The genetic divergences of the 16S rDNA and COI sequences between C. sclopetarius and C. vittatus ranged from 4.5 to 5.9% and 9.4 to 11.9%, which did not justify their synonymisation. Differences in the telson morphology, chela ornamentation, and coloration of the eyestalks and antennal peduncle provided support for the separation of the two species. Another interesting result was a considerable genetic difference found between populations of C. vittatus from Brazil and the Gulf of Mexico, which may indicate the existence of two homonymous species.
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