MicroRNA534a control of BLADE-ON-PETIOLE 1 and 2 mediates juvenile-to-adult gametophyte transition in Physcomitrella patens
14.01.2011
Saleh O, Issman N, Seumel GI, Stav R, Samach A, Reski R, Frank W, Arazi T.
Plant J. 2011;65(4):661-74
The Arabidopsis thaliana BLADE-ON PETIOLE genes encode a pair of transcriptional coactivators that regulate lateral organ architecture by promoting cell differentiation in their proximal regions. To gain insight into the roles of BOP genes early in land plant evolution, we characterized the functions of Physcomitrella patens BOP1 and BOP2 and their negative regulator Pp-miR534a. We show that in ?PpMIR534a mutants lacking mature Pp-miR534a, cleavage of PpBOP1/2 is abolished, leading to elevated PpBOP1/2 transcript levels. ...