Evolution of freshwater crab diversity in the Aegean region (Crustacea: Brachyura: Potamidae)

Molecular Phylogenetics and Evolution
Ruth JesseMarkus Pfenninger

Abstract

The aim of this study was to estimate the influence of the palaeogeographic and climatic history of the Aegean region on the diversity of freshwater crabs of the genus Potamon and to test whether this area served as source or reservoir in species diversity. Necessary species delimitation was accomplished by phylogenetic analyses of the mitochondrial markers COX1 and ND1, partial 16S rRNA gene and the tRNALeu gene. We found 14 genetic lineages of which nine could be assigned to previously recognised species. Temporal estimates of the splitting pattern in the phylogeny of Potamon indicated that a combination of geological and climatic events influenced their diversification. Within Potamon, the lineages separated into a western group and an eastern group. This first split in the genus occurred approximately 8.3-5.5 Mya, thus possibly correlated with the Messinian salinity crisis. A likelihood approach to geographic range evolution suggested for most species, occurring in the Aegean area, an origin in the Middle East. Moreover, there were no insular endemics in the central Aegean archipelago, therefore low sea-levels during the Pleistocene glacial periods possibly enabled dispersal to these islands, but subsequent rise in sea-leve...Continue Reading

References

Jan 27, 1999·Bioinformatics·D Posada, K A Crandall
Sep 3, 2005·Evolution; International Journal of Organic Evolution·Aris ParmakelisM Mylonas
Jan 7, 2006·Evolution; International Journal of Organic Evolution·Richard H ReeMichael J Donoghue
Nov 13, 2007·BMC Evolutionary Biology·Alexei J Drummond, Andrew Rambaut
Dec 14, 2007·Biology Letters·Nicolas VidalS Blair Hedges

Citations

Oct 13, 2017·Biological Reviews of the Cambridge Philosophical Society·Zhonge Hou, Shuqiang Li

Related Concepts

Bayesian Prediction
Uca
Cytochrome c Oxidase Subunit VIa
Biological Evolution
Mitochondria
Cytochrome c Reductase
Phylogeny
RNA, Ribosomal, 16S
RNA, Ribosomal, 28S
Leucine-Specific tRNA

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