qTGW3,TGW3,GL3.3,OsGSK5,OsSK41

• Symbol: qTGW3,TGW3,GL3.3,OsGSK5,OsSK41
• MSU: LOC_Os03g62500
• RAPdb: Os03g0841800

• A Novel QTL qTGW3 Encodes the GSK3/SHAGGY-Like Kinase OsGSK5/OsSK41 that Interacts with OsARF4 to Negatively Regulate Grain Size and Weight in Rice., 2018, Mol Plant.
• How rice Glycogen Synthase Kinase-like 5 OsGSK5 integrates salinity stress response to source-sink adaptation: a proposed model., 2017, Plant Signal Behav.
• Identification of a novel QTL and candidate gene associated with grain size using chromosome segment substitution lines in rice, 2021, Sci Rep.
• The kinase OsSK41/OsGSK5 negatively regulates amylose content in rice endosperm by affecting the interaction between OsEBP89 and OsBP5., 2023, J Integr Plant Biol.
• Control of grain size in rice by TGW3 phosphorylation of OsIAA10 through potentiation of OsIAA10-OsARF4-mediated auxin signaling., 2023, Cell Rep.

Genbank accession number

• A Novel QTL qTGW3 Encodes the GSK3/SHAGGY-Like Kinase OsGSK5/OsSK41 that Interacts with OsARF4 to Negatively Regulate Grain Size and Weight in Rice.
• The loss-of-function form of OsSK41 at qTGW3 represents a rare allele that has not been extensively utilized in rice breeding
• Short-term (14)CO2 feeding experiments suggested that OsGSK5 promoted higher flux to starch accumulation in the roots under this condition and that this mechanism may help to underscore the better growth characteristics observed
• Here, we expand upon this hypothesis and consider (i) how OsGSK5 action could fit into a signaling model that integrates salinity stress to changes in starch metabolism, and (ii) how this would facilitate whole plant physiological adaptions in source-to-sink partitioning
• Control of grain size in rice by TGW3 phosphorylation of OsIAA10 through potentiation of OsIAA10-OsARF4-mediated auxin signaling.
• In addition, physiological and molecular studies suggest that TGW3 mediates the brassinosteroid response, the effect of which can be relayed through the regulatory axis

• OsARF21, qTGW3~TGW3~GL3.3~OsGSK5~OsSK41, Auxin signaling module OsSK41-OsIAA10-OsARF regulates grain yield traits in rice., To investigate how rice grain yield traits are regulated by auxin signaling pathways and to facilitate their application in rice improvement, we validated the functional relationships among regulatory genes such as OsIAA10, OsSK41, and OsARF21 that are involved in one of the auxin (OsIAA10) signaling pathways
• OsARF21, qTGW3~TGW3~GL3.3~OsGSK5~OsSK41, Auxin signaling module OsSK41-OsIAA10-OsARF regulates grain yield traits in rice., Based on the results, we constructed a model that showed how grain yield traits were regulated by OsIAA10 and OsTIR1, OsAFB2, and OsSK41 and OsmiR393 in the OsSK41-OsIAA10-OsARF module and by OsARF21 in the transcriptional regulation of downstream auxin response genes in the OsSK41-OsIAA10-OsARF module
• OsEBP-89~OsEBP89, qTGW3~TGW3~GL3.3~OsGSK5~OsSK41, The kinase OsSK41/OsGSK5 negatively regulates amylose content in rice endosperm by affecting the interaction between OsEBP89 and OsBP5., Here, we determined that the GLYCOGEN SYNTHASE KINASE 5 (OsGSK5, also named SHAGGY-like kinase 41 [OsSK41]) inhibits the transcriptional activation activity of OsEBP89 in rice grains during amylose biosynthesis
• OsIAA10, qTGW3~TGW3~GL3.3~OsGSK5~OsSK41, Control of grain size in rice by TGW3 phosphorylation of OsIAA10 through potentiation of OsIAA10-OsARF4-mediated auxin signaling., Control of grain size in rice by TGW3 phosphorylation of OsIAA10 through potentiation of OsIAA10-OsARF4-mediated auxin signaling.
• OsIAA10, qTGW3~TGW3~GL3.3~OsGSK5~OsSK41, Control of grain size in rice by TGW3 phosphorylation of OsIAA10 through potentiation of OsIAA10-OsARF4-mediated auxin signaling., Here, we show that TGW3 (also called OsGSK5) interacts with and phosphorylates OsIAA10