Overexpression of a novel small auxin-up RNA gene, OsSAUR11, enhances rice deep rootedness.

ABSTRACT:

Background

Deep rooting is an important factor affecting rice drought resistance. However, few genes have been identified to control this trait in rice. Previously, we identified several candidate genes by QTL mapping of the ratio of deep rooting and gene expression analysis in rice.

Results

In the present work, we cloned one of these candidate genes, OsSAUR11, which encodes a small auxin-up RNA (SAUR) protein. Overexpression of OsSAUR11 significantly enhanced the ratio of deep rooting of transgenic rice, but knockout of this gene did not significantly affect deep rooting. The expression of OsSAUR11 in rice root was induced by auxin and drought, and OsSAUR11-GFP was localized both in the plasma membrane and cell nucleus. Through an electrophoretic mobility shift assay and ge

SUBMITTER: Xu K 

PROVIDER: S-EPMC10265830 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature