Nuclear–plastid discordance indicates past introgression in Epidendrum species (Laeliinae: Orchidaceae) with highly variable chromosome numbers.Here we study a challenging group of karyotypically highly variable Epidendrum spp. using phylogenetic methods to help understand how hybridization/introgression contributes to karyotype evolution. We hypothesize that species with great chromosome number variation are a result of past hybridization/introgression. Conflicting topologies in trees constructed using separate plastid and nuclear datasets...
Pessoa, Edlley M. ; Nollet, Felipe ; Magalhães, Rafael F. ; Viruel, Juan ; Pinheiro, Fábio …