Molecular phylogeny and historical biogeography of the genus Tuber, the ‘true truffles’
2008
Jeandroz, Sylvain | Murat, Claude, C. | Wang, Yongjin | Bonfante, Paola | Tacon, François Le | Interactions Arbres-Microorganismes (IAM) ; Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL) | Dipartimento di Biologia Vegetale ; Università degli studi di Torino = University of Turin (UNITO) | Institut Pasteur de Shanghai, Académie des Sciences de Chine - Chinese Academy of Sciences (IPS-CAS) ; Réseau International des Instituts Pasteur (RIIP)
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Show more [+] Less [-]English. Aim Various data sets and methods of analysis were combined to produce the first comprehensive molecular phylogeny of the genus Tuber and to analyse its biogeography.Location Europe, North Africa, China, Asia, North America.Methods Phylogenetic relationships among Tuber species were reconstructed based on a data set of internal‐transcribed spacer (ITS) sequences and various phylogenetic inference methods, specifically maximum parsimony, Bayesian analysis and neighbour joining. Tajima’s relative rate test showed that Tuber 18S rRNA, 5.8S rRNA, 5.8S‐ITS2 rRNA and β‐tubulin sequences evolved in a clock‐like manner. These genes, combined or not, were employed for molecular clock estimates after construction of linearized trees using mega 3.1. We reconstructed ancestral areas in the Northern Hemisphere by means of a dispersal–vicariance analysis (diva 1.1) based on current distribution patterns of the genus Tuber determined from the literature.
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