Historical biogeography of the endemic Campanulaceae of Crete

TitleHistorical biogeography of the endemic Campanulaceae of Crete
Publication TypeJournal Article
Year of Publication2009
AuthorsCellinese N, Smith SA, Edwards EJ, Kim S-T, Haberle RC, Avramakis M, Donoghue MJ
JournalJournal of Biogeography
Pagination1253 - 1269
KeywordsBEAST, biogeography, CAMPANULACEAE, Crete, CRETE (Greece), dating, dispersal, ENDEMIC plants, endemics, Evolution (Biology), GREECE, historical biogeography, MOLECULAR aspects, molecular phylogeny, phylogeny, PLANT species, relicts, RELICTS (Biology), vicariance

Aim The clade Campanulaceae in the Cretan area is rich in endemics, with c. 50% of its species having restricted distributions. These species are analysed in the context of a larger phylogeny of the Campanulaceae. Divergence times are calculated and hypotheses of vicariance and dispersal are tested with the aim of understanding whether Cretan lineages represent remnants of an older continental flora. Location The Cretan area: Crete and the Karpathos Islands (Greece). Methods We obtained chloroplast DNA sequence data from rbcL, atpB and matK genes for 102 ingroup taxa, of which 18 are from the Cretan area, 11 are endemics, and two have disjunct, bi-regional distributions. We analysed the data usingbeast, a Bayesian approach that simultaneously infers the phylogeny and divergence times. We calibrated the tree by placing a seed fossil in the phylogeny, and used published age estimates as a prior for the root. Results The phylogenetic reconstruction shows that all Campanula species fa