POPCORN Functions in the Auxin Pathway to Regulate Embryonic Body Plan and Meristem Organization in Arabidopsis
09.12.2012
Xiang D, Yang H, Venglat P, Cao Y, Wen R, Ren M, Stone S, Wang E, Wang H, Xiao W, Weijers D, Berleth T, Laux T, Selvaraj G, Datla R.
Plant Cell. 2011;23(12):4348-67
We report the identification of POPCORN (PCN), a gene required for embryo development and meristem organization in Arabidopsis thaliana. Map-based cloning revealed that PCN encodes a WD-40 protein expressed both during embryo development and postembryonically in the SAM and RAM. Several findings link PCN to auxin signaling and meristem function. Together, our results suggest that PCN functions in the auxin pathway, integrating auxin signaling in the organization and maintenance of the SAM and RAM.
