TWGFD

Welcome to C2C2-YABBY !

The small YABBY gene family is specific to seed plants, the members of which encode a class of transcription factors containing two conserved domains: a zinc-finger domain in the N-terminal region, and a YABBY domain (helix-loop-helix motif) in the C-terminal region. YABBY genes play roles in diverse processes such as lamina outgrowth, cell polarity maintenance, and leaf margin establishment. The expression patterns of vegetative YABBY genes are associated with several processes, including exclusion from apical meristems and activation of the initiation of lateral organ primordia, and often show asymmetric restriction to the abaxial domain of eudicot primordia. Evidence from core eudicots indicates that vegetative YABBY genes act in several aspects of leaf development, and also regulate shoot apical meristem development and phyllotaxy.