<i>DH2</i>-dependent trans-acting siRNAs regulate leaf and lemma development in rice.

ABSTRACT: In most crops, the development of lateral organs such as leaves and floral organs plays important roles in the architecture of plants and grains and then determines the yield. Establishment of polarity in these lateral organs is one of the most critical events for their morphogenesis. However, the molecular mechanisms regarding this in rice remain unclear. Here, we isolated two allelic mutants named degenerated hull 2-1 and degenerated hull 2-2 (dh2-1 and dh2-2) in rice, exhibiting abaxially rolled leaves and rod-shaped lemmas. DH2 encoded the relatively conservative ARGONAUT 7 (AGO7) protein in plants and expressed in the lateral organs including leaf and floral organs. In addition, the overexpression lines of DH2 showed adaxially rolled leaves. N

SUBMITTER: Tang J 

PROVIDER: S-EPMC11808002 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature