Fossil data support a pre-Cretaceous origin of flowering plants.
Détails
ID Serval
serval:BIB_1D5BD4D622BA
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Fossil data support a pre-Cretaceous origin of flowering plants.
Périodique
Nature ecology & evolution
ISSN
2397-334X (Electronic)
ISSN-L
2397-334X
Statut éditorial
Publié
Date de publication
04/2021
Peer-reviewed
Oui
Volume
5
Numéro
4
Pages
449-457
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Publication Status: ppublish
Résumé
Flowering plants (angiosperms) are the most diverse of all land plants, becoming abundant in the Cretaceous and achieving dominance in the Cenozoic. However, the exact timing of their origin remains a controversial topic, with molecular clocks generally placing their origin much further back in time than the oldest unequivocal fossils. To resolve this discrepancy, we developed a Bayesian method to estimate the ages of angiosperm families on the basis of the fossil record (a newly compiled dataset of ~15,000 occurrences in 198 families) and their living diversity. Our results indicate that several families originated in the Jurassic, strongly rejecting a Cretaceous origin for the group. We report a marked increase in lineage accumulation from 125 to 72 million years ago, supporting Darwin's hypothesis of a rapid Cretaceous angiosperm diversification. Our results demonstrate that a pre-Cretaceous origin of angiosperms is supported not only by molecular clock approaches but also by analyses of the fossil record that explicitly correct for incomplete sampling.
Mots-clé
Bayes Theorem, Fossils, Humans, Magnoliopsida/genetics, Phylogeny
Pubmed
Web of science
Création de la notice
08/02/2021 15:48
Dernière modification de la notice
06/01/2024 7:13