Mock, Elisabeth and Schubart, Christoph D. (2021) Reconstruction of intrageneric relationships within the Indo-West Pacific littoral crab genus Metopograpsus (Decapoda, Brachyura, Grapsidae): an alternative speciation order according to a 28S rDNA molecular phylogeny. CRUSTACEANA, 94 (11-12). pp. 1313-1325. ISSN 0011-216X, 1568-5403
Full text not available from this repository. (Request a copy)Abstract
The genus Metopograpsus H. Milne Edwards, 1853 is widespread throughout the Indo-West Pacific and currently consists of seven species that can only be separated by minor morphological differences. Therefore, it represents a good example for the usefulness of genetic analyses for identification and classification. In order to obtain phylogenetic information at both lower and higher evolutionary levels, it is best to use a combination of mitochondrial and nuclear molecular markers. Here we present for the first time a molecular phylogeny based on a relative long fragment of the 28S rRNA nuclear gene for the genus Metopograpsus, after application of newly developed primers. Our data suggest an alternative intrageneric speciation order, with M. thukuhar and M. cannicci holding a basal position and a monophyletic grouping of M. frontalis, M. oceanicus and M. quadridentatus, which differs from prior phylogenetic reconstructions. Previously recognized intraspecific phylogeographic patterns in M. latifrons and M. quadridentatus could not be confirmed, due to limited variability of this conserved nuclear gene and due to an incomplete geographic coverage of the corresponding species. In contrast, the previously indicated phylogenetic subdivision within the formerly widespread species M. thukuhar, which led to the recent description of M. cannicci, is here supported.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | H. MILNE EDWARDS; MANGROVE CRAB; CRUSTACEA; DIFFERENTIATION; EVOLUTION; PATTERNS; GROWTH; GENES; Phylogenetic reconstruction; nuclear genetic marker; 28S rRNA gene; new nDNA primer; mangroves |
| Subjects: | 500 Science > 590 Zoological sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Zoologie > Zoologie/Evolutionsbiologie (Prof. Dr. Jürgen Heinze) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 06 Jul 2022 06:57 |
| Last Modified: | 06 Jul 2022 06:57 |
| URI: | https://pred.uni-regensburg.de/id/eprint/45751 |
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