Phylogeny of the shore crab family Grapsidae (Decapoda: Brachyura: Thoracotremata) based on a multilocus approach

Ip, Brian H. Y. and Schubart, Christoph D. and Tsang, Ling Ming and Chu, Ka Hou (2015) Phylogeny of the shore crab family Grapsidae (Decapoda: Brachyura: Thoracotremata) based on a multilocus approach. ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY, 174 (2). pp. 217-227. ISSN 0024-4082, 1096-3642

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Abstract

The Grapsidae are a thoracotreme crab family with 40 species in eight genera (in their strict definition), and possess a number of morphological and molecular synapomorphies. Previous phylogenetic studies based on mitochondrial DNA markers established the monophyly of this family, but suggested possible paraphyly or polyphyly of some of the constituent genera. To test the validity of previous hypotheses, the present study reconstructed a molecular phylogeny of the grapsid crabs based on five molecular markers, including mitochondrial DNA markers and the first use of nuclear protein-coding markers to address this issue. Monophyly of Grapsidae was confirmed, with the exception of the position of the monotypic genus Leptograpsodes. The polyphyly of the genus Pachygrapsus is consistent with previous molecular phylogenies, as members from this genus are dispersed throughout our gene tree. Grapsus and Planes were shown to be paraphyletic, with species of Pachygrapsus nested within them. Our study found incongruences between the currently adopted classification of the family, and hence taxonomic revisions will be needed. We hereby demonstrate the use of nuclear protein-coding markers for high confidence reconstruction of decapod phylogenies, resolving most of the early splits that mitochondrial DNA markers alone are unable to tackle.(c) 2015 The Linnean Society of London

Item Type: Article
Uncontrolled Keywords: PROTEIN-CODING GENES; MOLECULAR PHYLOGENY; LARVAL CHARACTERS; GEOGRAPSUS-LIVIDUS; ZOEAL STAGES; CRUSTACEA; EVOLUTION; ORIGIN; MORPHOLOGY; SEQUENCES; Leptograpsodes; nuclear marker; Pachygrapsus
Subjects: 500 Science > 570 Life sciences
Divisions: Biology, Preclinical Medicine > Institut für Zoologie
Biology, Preclinical Medicine > Institut für Zoologie > Zoologie/Evolutionsbiologie (Prof. Dr. Jürgen Heinze)
Depositing User: Dr. Gernot Deinzer
Date Deposited: 17 Jul 2019 07:31
Last Modified: 17 Jul 2019 07:31
URI: https://pred.uni-regensburg.de/id/eprint/5456

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