Around the world in 40 million years: Phylogeny and biogeography of Tecomeae (Bignoniaceae).

Intercontinental disjunct distributions can arise from vicariance, long distance dispersal, or both. Tecomeae (Bignoniaceae) are a nearly cosmopolitan clade of flowering plants providing us with an excellent opportunity to investigate global distribution patterns. While the tribe contains only about 57 species, it has achieved a distribution that is not only pantropical, but also extends into the temperate zones in both the Northern and Southern hemispheres.

Phylogeny of the Neotropical tribe Jacarandeae (Bignoniaceae).

Premise: The tribe Jacarandeae includes Jacaranda (49 species) and Digomphia (3 species), two genera of trees and woody shrubs with Neotropical distribution. Jacarandeae is sister to the rest of the Bignoniaceae, but not much is known about interspecific and intergeneric relationships within this group.

Methods: We reconstructed the phylogeny of Jacarandeae using chloroplast (ndhF, rpl32-trnL, trnL-F) and nuclear (ETS, PPR62) markers.