microRNA-mediated control of cell fate specification and patterning in Marchantia polymorpha.
It is reported that MpDCL1a is required for the biogenesis of miRNAs and a central role for miR166/Homeodomain Zipper Class III-regulated auxin synthesis in the specification of cell identity, patterning, meristem function, laminar expansion, and the development of the body in the last common ancestor of the bryophytes...