Genetic diversity in the Alpine flatworm <i>Crenobia alpina</i>

The freshwater flatworm <i>Crenobia alpina</i> (Platyhelminthes, Tricladida, Planariidae) lives almost exclusively in cold springs and crenal streams and possesses only limited dispersal ability. In this study fragments of the COI and 18S rRNA genes were used to estimate genetic diver...

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Bibliographic Details
Main Authors: M. Brändle, J. Sauer, L. Opgenoorth, R. Brandl
Format: Article
Language:English
Published: Copernicus Publications 2017-07-01
Series:Web Ecology
Online Access:https://www.web-ecol.net/17/29/2017/we-17-29-2017.pdf
Description
Summary:The freshwater flatworm <i>Crenobia alpina</i> (Platyhelminthes, Tricladida, Planariidae) lives almost exclusively in cold springs and crenal streams and possesses only limited dispersal ability. In this study fragments of the COI and 18S rRNA genes were used to estimate genetic divergences among 37 <i>C. alpina</i> populations from the European Alps. Phylogenetic analyses revealed five geographically and genetically distinct groups and at least 10 distinct lineages of <i>C. alpina</i> across the European Alps. Our study suggests that <i>C. alpina</i> represents a complex of numerous cryptic species. Speciation (allopatric and/or sympatric) may have been facilitated by the orogenetic activity of the Alps and the high habitat specificity.
ISSN:2193-3081
1399-1183