TY - JOUR
T1 - Molecular phylogeny and evolution of inflorescence types in Eperua
AU - Ter Steege, Hans
AU - Fortes, Elenice Aparecida
AU - Rozendaal, Danaë M A
AU - Erkens, Roy H J
AU - Sabatier, Daniel
AU - Aymard, Gerardo
AU - Duijm, Elza
AU - Eurlings, Marcel
AU - Grewe, Felix
AU - Pombo, Maihyra Marina
AU - Gomes, Vitor Freitas
AU - Mansano, Vidal de Freitas
AU - de Oliveira, Sylvia Mota
PY - 2023/10
Y1 - 2023/10
N2 - PREMISE: The Amazonian hyperdominant genus Eperua (Fabaceae) currently holds 18 described species and has two strongly different inflorescence and flower types, with corresponding different pollination syndrome. The evolution of these vastly different inflorescence types within this genus was unknown and the main topic in this study. METHODS: We constructed a molecular phylogeny, based on the full nuclear ribosomal DNA and partial plastome, using Bayesian inference and maximum likelihood methods, to test whether the genus is monophyletic, whether all species are monophyletic and if the shift from bat to bee pollination (or vice versa) occurred once in this genus. KEY RESULTS: All but two species are well supported by the nuclear ribosomal phylogeny. The plastome phylogeny, however, shows a strong geographic signal suggesting strong local hybridization or chloroplast capture, rendering chloroplast barcodes meaningless in this genus. CONCLUSION: With our data we cannot fully resolve the backbone of the tree to clarify sister genera relationships and confirm monophyly of the genus Eperua. Within the genus the shift from bat to bee and bee to bat pollination has occurred several times but, in the latter, not always leading to a pendant inflorescence. This article is protected by copyright. All rights reserved.
AB - PREMISE: The Amazonian hyperdominant genus Eperua (Fabaceae) currently holds 18 described species and has two strongly different inflorescence and flower types, with corresponding different pollination syndrome. The evolution of these vastly different inflorescence types within this genus was unknown and the main topic in this study. METHODS: We constructed a molecular phylogeny, based on the full nuclear ribosomal DNA and partial plastome, using Bayesian inference and maximum likelihood methods, to test whether the genus is monophyletic, whether all species are monophyletic and if the shift from bat to bee pollination (or vice versa) occurred once in this genus. KEY RESULTS: All but two species are well supported by the nuclear ribosomal phylogeny. The plastome phylogeny, however, shows a strong geographic signal suggesting strong local hybridization or chloroplast capture, rendering chloroplast barcodes meaningless in this genus. CONCLUSION: With our data we cannot fully resolve the backbone of the tree to clarify sister genera relationships and confirm monophyly of the genus Eperua. Within the genus the shift from bat to bee and bee to bat pollination has occurred several times but, in the latter, not always leading to a pendant inflorescence. This article is protected by copyright. All rights reserved.
KW - Eperua
KW - inflorescence morphology
KW - molecular phylogeny
KW - pollen
KW - pollination
KW - pollinator shift
U2 - 10.1002/ajb2.16229
DO - 10.1002/ajb2.16229
M3 - Article
SN - 1537-2197
VL - 110
JO - American journal of botany
JF - American journal of botany
IS - 10
M1 - e16229
ER -