Abstract
Abstract The circumscription and infrageneric classification of Campanula is highly controversial. Independent and combined data from nuclear and chloroplast sequences (trnL-trnF, ITS) were analyzed with Bayesian and parsimony methods to elucidate the phylogenetic relationships of Campanula and allied genera, and explore the biological processes that occurred during the evolution of this genus. The main sections and subgenera of Campanula and related genera were sampled extensively. Chromosome numbers, corolla types, habit and capsule dehiscence were mapped on the trees to search for evolutionary patterns. The phylogenetic analyses revealed that Campanula, as currently circumscribed, is not monophyletic. This genus is divided into two main clades: a large core of Campanula species that includes related genera (Adenophora, Asyneuma, Azorina, Campanulastrum, Diosphaera, Edraianthus, Githopsis, Hanatnisaya, Heterocodon, Legousia, Michauxia, Petromarula, Physoplexis, Phyteuma, Trachelium, and Triodanis), and ...
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