Article
Why are orchid flowers so diverse? Reduction of evolutionary constraints by paralogues of class B floral homeotic genes.
Annals of botany - 1 Aug 2009
Mondragón-Palomino Mariana, Theissen Günter
Abstract excerpt
BACKGROUND: The nearly 30 000 species of orchids produce flowers of unprecedented diversity. However, whether specific genetic mechanisms contributed to this diversity is a neglected topic and remains speculative. We recently published a theory, the 'orchid code', maintaining that the identity of the different perianth organs is specified by the combinatorial interaction of four DEF-like MADS-box genes with other...
Read the complete abstract on PubMedTopics
Share this publication in a Topic to start or enrich a Post.