Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Master → Autriche → Phylogeography of the plant species Phlomis olivieri (Lamiaceae) in the high mountains of Iran

Universität Wien (2022)

Phylogeography of the plant species Phlomis olivieri (Lamiaceae) in the high mountains of Iran

Dervisevic, Emir

Titre : Phylogeography of the plant species Phlomis olivieri (Lamiaceae) in the high mountains of Iran

Auteur : Dervisevic, Emir

Université de soutenance : Universität Wien

Grade : Masterarbeit 2022

Résumé
In this study I focus on phylogeography of Phlomis olivieri (Lamiaceae), an endemic plant species distributed in mid elevations of high mountains of the Iranian Plateau. Phylogeography of this area, in general, is poorly known compared to other mountain ranges like the European Alps. Glaciation in this region was not as strong as in Europe, nevertheless its biota was affected by Pleistocene climatic fluctuations. A total of 14 populations with 53 individuals of Phlomis olivieri were successfully sequenced (Rad-Seq). Population structure of the species was analysed, and environmental niche modelling was used to analyse habitat suitability of the species in the past and present. Here we identify three well distinguished population genetic groups of the species that are congruent with three areas of endemism corresponding to three main mountain ranges. ENM shows that total habitat suitability of the species during LGM was higher than today but just concentrated to NW Iran and W Zagros. Based on these results we conclude that the major mountain ranges of the region have been biodiversity refugial areas in the LGM.

Présentation

Version intégrale

Page publiée le 5 mars 2023