The systematic position of Ergasticus (Decapoda, Brachyura) and allied genera, a molecular and morphological approach
| Autor: | Asvin P. Torres, Guillermo Guerao, Elena Marco-Herrero, Pere Abelló, José A. Cuesta, Ferran Palero |
|---|---|
| Přispěvatelé: | Ministerio de Economía y Competitividad (España), European Commission, Govern de les Illes Balears |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
0106 biological sciences
Subfamily Brachyura Zoology 010603 evolutionary biology 01 natural sciences Monophyly Centro Oceanográfico de Baleares systematic Genetics 14. Life underwater Pesquerías molecular Molecular Biology Ecology Evolution Behavior and Systematics biology Phylogenetic tree Decapoda 010604 marine biology & hydrobiology fungi biology.organism_classification Arthropod mouthparts Ergasticus Oregoniidae Majoidea Larva Inachidae Animal Science and Zoology |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | 13 pages, 7 figures, 2 tables The complete larval series (zoea I, zoea II and megalopa) of the crab Ergasticus clouei is described and illustrated based on plankton samples from Mediterranean waters. The zoea II and megalopal stages, previously unknown, are described here for the first time. Nucleotide sequence analysis of two gene regions (16S rDNA and Cox1 genes) confirmed the assignment of these larvae to Ergasticus clouei. The molecular analyses and the morphology of the larval stages revealed large differences between Ergasticus and Inachus, the type genus of the family Inachidae. In fact, E. clouei larvae presented a series of morphological characters, such as antennal shape and mouthparts setation pattern that placed them closer to the family Oregoniidae. The phylogenetic analyses also showed significant support for the monophyly of the Oregoniidae + Ergasticus group. The data argue for removal of Ergasticus and the related genera (Bothromaia, Pleisticanthoides, Parapleisticantha and Pleistacantha) from the Inachidae and their placement within the Oregoniidae as a separate subfamily, Pleistacanthinae Števčić, 2005. Our results demonstrate that larval stages provide reliable morphological traits, independent from those of adults, to help resolving relationships among Majoidea genera The research was carried out within the framework of the projects MEGALOPADN (CGL2009-11225) and IDEADOS (CTM2008-04489-C03), funded by the ‘Ministerio de Economía y Competividad (MINECO)’ Spanish Plan R + D + I and FEDER. F. Palero acknowledges funding from the Spanish Government, Ministry of Economy and Competitiveness (BFU2011-24112). E. Marco-Herrero and A.P. Torres acknowledge the predoctoral FPI Fellowships supported by MINECO (BES-2010-033297) and Regional Government of the Balearic Islands, Conselleria d’Educaci o, Cultura i Universitats, select as part of an operational programme co-financed by the Fondo Social Europeo, respectively |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|