Journal Article

Phylogenomics and the rise of the angiosperms

Luján, Manuel, Welker, Cassiano, Epitawalage, Niroshini, Hoewener, Alina, Sauquet, Hervé, Yang, Ya, Li, Lan, Hackel, Jan, Chen, Shilin, Jobson, Richard, Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [Occitanie])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université de Montpellier (UM), Liu, Jing-Xia, del Valle, Jose, Gutiérrez, Diego, Bayly, Michael, Knapp, Sandra, Nauheimer, Lars, Cano, Ángela, Csiba, Laszlo, Borosova, Renata, Duvall, Melvin, Persson, Claes, Kainulainen, Kent, Graham, Sean, Rokni, Saba, Lewis, Gwilym, Negrão, Raquel, Erkens, Roy, Simmons, Mark, Coffey, Skye, Ficinski, Sarah, Thornhill, Andrew, Arthan, Watchara, van Dijk, Kor-Jent, Chase, Mark, Kahandawala, Imalka, Biffin, Ed, Starr, Julian, Hodkinson, Trevor, Xanthos, Martin, Grace, Olwen, Simões, Ana Rita G, Bailey, Pau

2024

Overview

Angiosperms are the cornerstone of most terrestrial ecosystems and human livelihoods 1,2 . A robust understanding of angiosperm evolution is required to explain their rise to ecological dominance. So far, the angiosperm tree of life has been determined primarily by means of analyses of the plastid genome 3,4 . Many studies have drawn on this foundational work, such as classification and first insights into angiosperm diversification since their Mesozoic origins 5–7 . However, the limited and biased sampling of both taxa and genomes undermines confidence in the tree and its implications. Here, we build the tree of life for almost 8,000 (about 60%) angiosperm genera using a standardized set of 353 nuclear genes 8 . This 15-fold increase in genus-level sampling relative to comparable nuclear studies 9 provides a critical test of earlier results and brings notable change to key groups, especially in rosids, while substantiating many previously predicted relationships. Scaling this tree to time using 200 fossils, we discovered that early angiosperm evolution was characterized by high gene tree conflict and explosive diversification, giving rise to more than 80% of extant angiosperm orders. Steady diversification ensued through the remaining Mesozoic Era until rates resurged in the Cenozoic Era, concurrent with decreasing global temperatures and tightly linked with gene tree conflict. Taken together, our extensive sampling combined with advanced phylogenomic methods shows the deep history and full complexity in the evolution of a megadiverse clade.

• Publisher: Nature Publishing Group,CCSD,Nature Publishing Group UK
• Subject: 45 / 631/181/757 / 631/181/759 / 631/208/212/2306 / 631/449/2669 / Angiosperms / Biodiversity / Biodiversity and Ecology / Cenozoic / Collaboration / Datasets / Endangered & extinct species / Environmental Sciences / Evolution / Evolution, Molecular / Fossils / Genera / Genes, Plant - genetics / Genomes / Genomics / Global temperatures / Humanities and Social Sciences / Macroevolution / Magnoliopsida - classification / Magnoliopsida - genetics / Mesozoic / multidisciplinary / Nuclear Proteins - genetics / Phylogenetics / Phylogeny / Sampling / Science / Science (multidisciplinary) / Terrestrial ecosystems / Trees
• ISBN: 0012531604000