A comprehensive, genus-level time-calibrated phylogeny of the tree flora of Mediterranean Europe and an assessment of its vulnerability
CHEIKH ALBASSATNEH, Marwan
Institut d'écologie et des sciences de l'environnement de Paris [iEES Paris ]
Voir plus >
Institut d'écologie et des sciences de l'environnement de Paris [iEES Paris ]
CHEIKH ALBASSATNEH, Marwan
Institut d'écologie et des sciences de l'environnement de Paris [iEES Paris ]
Institut d'écologie et des sciences de l'environnement de Paris [iEES Paris ]
MONNET, Anne-Christine
Institut méditerranéen de biodiversité et d'écologie marine et continentale [IMBE]
< Réduire
Institut méditerranéen de biodiversité et d'écologie marine et continentale [IMBE]
Langue
en
Article de revue
Ce document a été publié dans
Botany Letters. 2020, vol. 167, n° 2, p. 276-289
Taylor & Francis
Résumé en anglais
We produced the first time-calibrated phylogeny of all 64 native tree genera occurring on the European side of the Mediterranean Basin. This phylogeny is based on 3 plastid DNA sequences (rbcL matK and trnH-psbA), 4 ...Lire la suite >
We produced the first time-calibrated phylogeny of all 64 native tree genera occurring on the European side of the Mediterranean Basin. This phylogeny is based on 3 plastid DNA sequences (rbcL matK and trnH-psbA), 4 recognized fossil dates and 10 secondary calibrations. Based on the inferred topology, we then tested whether the investigated tree flora exhibits phylogenetic clustering in both life-history traits known to influence reproduction and species' vulnerability to extinction. Our topology and the estimated dates mostly conform to published partial phylogenies and are highly congruent with the Angiosperm Phylogeny Group classification except for some minor incongruences including the still debated phylogenetic position of Magnoliids. The four strictly endemic genera of the Mediterranean Basin (Chamaerops, Phillyrea, Spartium and Tetraclinis) all showed emergence dates (11-72 Ma) long before the onset of the Mediterranean climate. We did not find any imprints of phylogenetic sorting processes on the life-history traits we studied, except for the mode of seed dispersal, which showed a clustered distribution across our topology. The presence of species at risk of potential extinction within a given genus was randomly distributed along the phylogenetic tree. Species with deficient data were significantly nested within a few of the most recently evolved angiosperm genera. Our analysis closes knowledge gaps and provides a valuable basis for studying the biogeo-graphical and ecological processes that have generated the Mediterranean tree flora. It can also inform conservation planning strategies that aim at broadening traditional taxonomy-focused perspectives with components of evolutionary history and phylogenetic singularity.< Réduire
Mots clés en anglais
Woody plants
Maximum likelihood
Bayesian
mating system
molecular evolution
plastid DNA
conservation
Project ANR
Objectif Terre : Bassin Méditerranéen - ANR-11-LABX-0061
Origine
Importé de halUnités de recherche