Phylogeographic structure and past history of the circum-Mediterranean species Tomicus destruens Woll. (Coleoptera: Scolytinae)

Molecular Ecology
A HornC Kerdelhué

Abstract

Phylogeographic studies are often focused on temperate European species with relict footholds in the Mediterranean region. Past climatic oscillations usually induced range contractions and expansions from refugial areas located in southern Europe, and spatial distribution of genetic diversity show that northward expansions were usually pioneer-like. Actually, few studies have focused on circum-Mediterranean species, which probably were not influenced in the same way by climatic oscillations. We present the phylogeography of the bark beetle Tomicus destruens, which is restricted to the whole Mediterranean basin and the Atlantic coasts of North Africa and Portugal. We systematically sequenced 617 bp of the mitochondrial genes COI and COII for 42 populations (N = 219). Analysis revealed 53 haplotypes geographically structured in two clades, namely eastern and western clades, that diverged during the Pleistocene. A contact zone was identified along the Adriatic coast of Italy. Interestingly, we found contrasting levels of genetic structure within each clade. The eastern group was characterized by a significant phylogeographic pattern and low levels of gene flow, whereas the western group barely showed a spatial structure in haploty...Continue Reading

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Citations

Jul 9, 2008·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·A Obrepalska-SteplowskaJ Nawrot
Sep 5, 2012·The Journal of Heredity·Hermilo Sánchez-SánchezKen Oyama
Sep 8, 2009·BMC Evolutionary Biology·Carole KerdelhuéAndrea Battisti
Apr 19, 2007·Frontiers in Zoology·Thomas Schmitt
Aug 23, 2016·Ecology and Evolution·Thomas LefebvreAnne-Geneviève Bagnères
Jan 1, 2012·Insects·Dimitrios N AvtzisChristian Stauffer
May 17, 2017·PloS One·Adriana C Morales-Corrêa E Castro, Nara Cristina Chiarini Pena Barbosa
Mar 22, 2008·Molecular Phylogenetics and Evolution·Arif-Ul HasanAndrew Masta

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