Os02g0731700

The rice Os02g0731700 was reported as Ghd2 in 2016 by researchers from china.

Annotated Information

• Os02g0731700 <=> Ghd2, OsBBX8, OsCCT09, OsK, OsK/Ghd2

Function

• Ghd2 functions as a regulator by integrating environmental signals with the senescence process into a developmental programme through interaction with different proteins

Expression

• Ghd2 is expressed mainly in the rice (Oryza sativa) leaf with the highest level detected at the grain-filling stage, and it is down-regulated by drought stress conditions.

Phenotypic analysis

• Overexpression of Ghd2 resulted in significantly reduced drought resistance, while its knockout mutant showed the opposite phenotype.
• The earlier senescence symptoms and the transcript up-regulation of many senescence-associated genes (SAGs) in Ghd2-overexpressing transgenicrice plants under drought stress conditions indicate that Ghd2 plays essential roles in accelerating drought-induced leaf senescence in rice.
• developmental and dark-induced leaf senescence was accelerated in the Ghd2-overexpressing rice and delayed in the ghd2 mutant.

Labs working on this gene

• National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural

University, Wuhan 430070, China