Dispersal versus vicariance in the Aegean: combining molecular and morphological phylogenies of eastern Mediterranean Dendarus (Coleoptera: Tenebrionidae) sheds new light on the phylogeography of the Aegean area

Autor: Apostolos Trichas, Ioannis Anastasiou, Nikos Poulakakis, Anna Papadopoulou, Bekir Keskin, Maria Smirli
Rok vydání: 2020
Předmět:
Zdroj: Zoological Journal of the Linnean Society. 190:824-843
ISSN: 1096-3642
0024-4082
DOI: 10.1093/zoolinnean/zlaa022
Popis: The Aegean archipelago, as an 'evolutionary laboratory of nature', is an ideal model for research in phylogeography. In this area, the darkling beetles of the genus Dendarus (distributed from Morocco to the Caucasus) exhibit a high level of diversity with 36 species, 27 of which are island endemics. However, their taxonomy is complex and unstable, having undergone continuous revision to address extensive morphological and ecological plasticity. Here, we examine the phylogenetic relationships of 23 species from Greece and Turkey, using mitochondrial and nuclear DNA sequences and 61 morphological characters, to unveil their phylogeny in the Aegean. This helps to clarify phylogeographic scenarios and historical processes that shaped the observed patterns. The analyses reveal 13 distinct lineages with several para- and polyphyletic cases that correspond to three major phylogroups [south/south-east Aegean (D. foraminosus complex, D. rhodius, D. sporadicus, D. wettsteini); central to north Aegean, Turkey and mainland Greece (D. crenulatus, D. moesiacus group, D. sinuatus complex, D. stygius) and mainland Greece (D. messenius, D. paganettii)], indicating the need for further taxonomic re-evaluation. Lineage topology and phylogeography suggest a spatial and temporal sequence of geographic isolation, following either a vicariant or a dispersal model coincident with major palaeogeographic separations in the Aegean. © 2020 The Linnean Society of London.
Seventh Framework Programme, FP7: HU-TAF 1942; University of Crete, UoC; Hungarian Natural History Museum, HNHM
We express our gratitude to Manolis Nikolakakis and Katerina Vardinoyannis (Natural History Museum of Crete, University of Crete) for helping in map drawing, Ljubica Kardaki (Natural History Museum of Crete, University of Crete) for the preparation and assistance with the samples, Nikos Tsirigotakis, Christophoros Pavlou (School of Medicine, University of Crete) and Odysseas Piperagas (Biology Department, University of Crete) for their help with the morphological measurements of the samples and Sandra Siakouli- Galanopoulou (Electron Microscope 'Vassilis Galanopoulos', University of Crete) for assistance with SEM microscopy. We are also thankful to Katerina Vardinoyannis and Loukia Spilani (Natural History Museum of Crete, University of Crete) for the useful brainstorming throughout the preparation of the present manuscript. The first author also thanks the SYNTHESYS Project http://www.synthesys. info/ financed by European Community Research Infrastructure Action under the FP7 'Capacities' Program (HU-TAF 1942) and Dr Ottó Merkl at the Hungarian Museum of Natural History for research support, concerning the morphological study of East Mediterranean Dendarus types and non-type material deposited at HMNH. Finally, the authors thank the editor and the anonymous reviewers for their time and effort commenting on this manuscript. The authors declare that there are no conflicts of interest.
Databáze: OpenAIRE
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje