2024-03-28T22:47:30Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1274272019-02-20T10:26:11Zcom_10261_123com_10261_8com_10261_14col_10261_502col_10261_393
DIGITAL.CSIC
author
Marco-Herrero, Elena
author
Abelló, Pere
author
Drake, Pilar
author
García Raso, J. Enrique
author
González-Gordillo, J. Ignacio
author
Guerao, Guillermo
author
Palero, Ferran
author
Rodríguez, Antonio
author
Cuesta, José A.
funder
European Commission
funder
Ministerio de Economía y Competitividad (España)
2014-08
8th International Crustacean Congress (2014)
http://hdl.handle.net/10261/127427
http://dx.doi.org/10.13039/501100000780http://dx.doi.org/10.13039/501100003329
The main objective of the MEGALOPADN project was to optimize the application of molecular techniques, specifically the analysis of mitochondrial DNA sequences (16S and Cox1), in conjunction with morphological techniques for a correct identification of brachyuran megalopae collected from the plankton around the Iberian Peninsula. The list of Iberian crabs was updated to 136 valid species (from 113 previously). A database was built including the corresponding 16S and/or Cox1DNA barcode sequences for 123 of those species. Thanks to this database, the 90% of the Iberian crabs (adults or larval stages) can now be identified with confidence to species level. The remaining 10% are mainly rare and infrequent species. Furthermore, the megalopae of 57 different species were identified using this database after analyzing morphological and molecularly more than 2000 megalopae collected in the plankton. The megalopal phase was unknown for 11 of these 57 species, and they are being described in detail. Megalopae of the remaining 46 species, of which previous descriptions were available, have been used to revise characters, setation patterns, missing data, correct minor mistakes and analyze the variability found among megalopae from the plankton and those obtained in the laboratory. Megalopae had to be re-described in 3 species because previous descriptions were incomplete or contained too many errors. These new descriptions and redescriptions, along with the existing ones, have enabled the development of an illustrated key for the identification of the megalopae of 78 Iberian crab species. The availability of this database of DNA barcodes has also allowed us to study the phylogenetic relationships of these species and their taxonomic validity. As a result there have been a number of proposed changes in the systematics of some species, comprising synonymization, establishment of new genera and a new subfamily, and changes in the systematic position of the genus Ergasticus (MARCO-HERRERO et al., 2013)
eng
closedAccess
Brachyuran megalopae from Iberian Peninsula (SW Europe). Results of the MEGALOPADN project
póster de congreso
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