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Identifier

000429038

Title

Φυλογένεση του σαπροξυλικού γένους Dorcus (Κολεόπτερα, Lucanidae) στη Μεσόγειο με έμφαση στον ελληνικό χώρο

Alternative Title

Phylogeny of saproxylic genus Dorcus (Coleoptera, Lucanidae) in Mediterranean region emphasizing on Greece

Author

Αλέξη, Γεωργία Γ.

Thesis advisor

Πουλακάκης, Νίκος

Reviewer

Μυλωνάς, Μωυσής
Τριχάς, Απόστολος

Abstract

Lucanidae is a saproxylic family of beetles with a cosmopolitan distribution and an important contribution to the decomposition of dead wood and the recycling of nutrients in forest ecosystems. The genus Dorcus has been the subject of longterm phylogenetic controversies, reflected in plenty of taxonomic reviews. There are 4 species in the European area, 2 of which are distributed in Greece (D. parallelipipedus and D. peyronis) with the second one being extremely rare. The present study investigated the phylogenetic relationships of the 4 European species of the genus with emphasis on Greece (D. parallelipipedus, D. alexisi, D. musimon and D. peyronis) using mitochondrial and nuclear markers, including individuals from 23 different sites of Greek mainland and Crete and 7 from Cyprus, Sardinia, Turkey, Spain and Italy. The phylogenetic tree indicates the presence of two branches: the one includes D. parallelipipedus of the Mediterranean area without significant intraspecific genetic differentiation (~ 4%) and D. alexisi and D. musimon (5% and 8% respectively from the first one). The second includes D. peyronis of Crete and Turkey, with a great differentiation from the rest Dorcus spp. (25%) and phylogenetically more closely related to other family members (20%). The above leads to the need for taxonomic revision of the genus Dorcus (paraplyletic). Based on the topology of the tree and the analysis of the populations (the entire Mediterranean) as well as the dating of the data, there is likely an old dispersion of the taxon (active or passive) in the Mediterranean region.

Language

Greek

Subject

Forest ecosystems

Mitochondrial marker

Nuclear marker

Taxonomy

Δασικά οικοσυστήματα

Μιτοχονδριακός δείκτης

Πυρηνικός δείκτης

Ταξινομική

Issue date