Shahdadi, Adnan and Davie, Peter J. F. and Schubart, Christoph D. (2018) Systematics and phylogeography of the Australasian mangrove crabs Parasesarma semperi and P. longicristatum (Decapoda : Brachyura : Sesarmidae) based on morphological and molecular data. INVERTEBRATE SYSTEMATICS, 32 (1). pp. 196-214. ISSN 1445-5226, 1447-2600
Full text not available from this repository. (Request a copy)Abstract
Parasesarma semperi (Burger, 1893) was first described from Bohol in the Philippines and is considered to be widely distributed in Southeast Asia. Parasesarma longicristatum (Campbell, 1967) was originally described as a subspecies of P. semperi from Queensland, Australia, and later recognised as a full species. In this study, we re-examine specimens of the two species from across their entire geographic range using genetic markers, a morphometric analysis, and traditional morphological characters. Previous taxonomic species diagnoses were found to be unreliable, but morphometric principle component analyses consistently separate the two species, with the length to width ratio of the propodus of the fourth pereiopod being of particular importance. Genetic data corresponding to the mitochondrial genes COI, ND1 and 16S confirmed a close sister relationship between the two species, forming reciprocally monophyletic groups. Both species have high haplotype diversities and high intraspecific gene flow.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PERISESARMA-GUTTATUM BRACHYURA; INDO-WEST PACIFIC; DE-MAN; DIFFERENTIATION; CHARACTERS; LIKELIHOOD; SINGAPORE; GRAPSIDAE; CRUSTACEA; INDONESIA; gene flow; insular species; morphometrics; re-description; Thoracotremata |
| Subjects: | 500 Science > 570 Life sciences 500 Science > 590 Zoological 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: | 20 Mar 2020 13:06 |
| Last Modified: | 20 Mar 2020 13:06 |
| URI: | https://pred.uni-regensburg.de/id/eprint/15442 |
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