PpGRAS12 acts as a positive regulator of meristem formation in Physcomitrium patens.

ABSTRACT:

Key message

This study focused on the key regulatory function of Physcomitrium patens GRAS12 gene underlying an increasing plant complexity, an important step in plant terrestrialization and the evolutionary history of life. The miR171-GRAS module has been identified as a key player in meristem maintenance in angiosperms. PpGRAS12 is a member of the GRAS family and a validated target for miR171 in Physcomitrium (Physcomitrella) patens. Here we show a regulatory function of miR171 at the gametophytic vegetative growth stage and targeted deletion of the PpGRAS12 gene adversely affects sporophyte production since fewer sporophytes were produced in ΔPpGRAS12 knockout lines compared to wild type moss. Furthermore, highly specific and distinct growth arrests were observed in inducible Pp

SUBMITTER: Beheshti H 

PROVIDER: S-EPMC8648639 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature