Oil-producing flowers within the Iridoideae (Iridaceae): evolutionary trends in the flowers of the New World genera.

ABSTRACT:

Background and aims

Oil-producing flowers related to oil-bee pollination are a major innovation in Neotropical and Mexican Iridaceae. In this study, phylogenetic relationships were investigated among a wide array of New World genera of the tribes Sisyrinchieae, Trimezieae and Tigridieae (Iridaceae: Iridoideae) and the evolution of floral glandular structures, which are predominantly trichomal elaiophores, was examined in relation to the diversification of New World Iridaceae.

Methods

Phylogenetic analyses based on seven molecular markers obtained from 97 species were conducted to produce the first extensive phylogeny of the New World tribes of subfamily Iridoideae. The resulting phylogenetic hypothesis was used to trace the evolutionary history of glandular structures presen

SUBMITTER: Chauveau O 

PROVIDER: S-EPMC3400458 | biostudies-literature | 2012 Aug

REPOSITORIES: biostudies-literature