Morphological evolution in the variable resin-producing Detarieae (Fabaceae): do morphological characters retain a phylogenetic signal?

Annals of Botany
Marie Fougère-DanezanAnne Bruneau

Abstract

Previous molecular phylogenetic studies disagree with the informal generic-level taxonomic groups based on morphology. In this study morphological characters in the caesalpinioid clade Detarieae are evaluated within a phylogenetic framework as a means of better understanding phylogenetic relationships and morphological evolution. Morphological characters were observed and scored for representative species of Detarieae focusing on the resin-producing genera. Phylogenetic analyses were carried out with morphological characters alone and then combined with DNA sequences. Despite a high level of homoplasy, morphological data support several clades corresponding to those recovered in molecular phylogenetic analyses. The more strongly supported clades are each defined by at least one morphological synapomorphy. Several characters (e.g. apetaly) previously used to define informal generic groups evolved several times independently, leading to the differences observed with the molecular phylogenetic analyses. Although floral evolution is complex in Detarieae some patterns are recovered. New informal taxonomic groupings are proposed based on the present findings. Floral evolution in the diverse Detarieae clade is characterized by a repea...Continue Reading

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Citations

May 8, 2018·Proceedings of the National Academy of Sciences of the United States of America·Mónica M Solórzano KraemerEnrique Peñalver
Oct 2, 2013·Annals of Botany·Anselmo NogueiraLúcia G Lohmann
May 19, 2020·PloS One·Xavier DelclòsMónica M Solórzano-Kraemer
Dec 10, 2017·Molecular Phylogenetics and Evolution·Félicien TossoJérémy Migliore

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