Fiche du document
1998
Ce document est lié à :
info:eu-repo/semantics/altIdentifier/doi/10.1098/rspb.1998.0337
Ce document est lié à :
info:eu-repo/semantics/altIdentifier/pissn/0962-8452
Ce document est lié à :
info:eu-repo/semantics/altIdentifier/urn/urn:nbn:ch:serval-BIB_4C980DB25D5C1
info:eu-repo/semantics/openAccess , Copying allowed only for non-profit organizations , https://serval.unil.ch/disclaimer
Sujets proches
Family Family structure Families--Social aspects Families--Social conditions Family life Structure, Family Family relationships Relationships, Family Flowering plants MagnoliophytaCiter ce document
V. Savolainen et al., « Rate of gene sequence evolution and species diversification in flowering plants: a re-evaluation », Serveur académique Lausannois, ID : 10.1098/rspb.1998.0337
Métriques
Partage / Export
Résumé
Barraclough and co-workers (in a paper published in 1996) observed that there was a significant positive correlation between the rate of evolution of the rbcL chloroplast gene within families of flowering plants and the number of species in those families. We tested three additional data sets of our own (based on both plastid and nuclear genes) and used methods designed specifically for the comparison of sister families (based on random speciation and extinction). We show that, over all sister groups, the correlation between the rate of gene evolution and an increased diversity is not always present. Despite tending towards a positive association, the observation of individual probabilities presents a U-shaped distribution of association (i.e. it can be either significantly positive or negative). We discuss the influence of both phylogenetic sampling and applied taxonomies on the results.