OsERF115,AP2EREBP110

• Symbol: OsERF115,AP2EREBP110
• MSU: LOC_Os08g41030
• RAPdb: Os08g0521600

• The OsERF115/AP2EREBP110 Transcription Factor Is Involved in the Multiple Stress Tolerance to Heat and Drought in Rice Plants, 2021, Int J Mol Sci.
• The OsEIL1-OsERF115-target gene regulatory module controls grain size and weight in rice., 2022, Plant Biotechnol J.

Genbank accession number

• OsERF115 acts as a transcriptional repressor to directly or indirectly modulate a set of grain-size genes during spikelet growth and endosperm development
• Here, we report that the ethylene response factor OsERF115 functions as a key downstream regulator for ethylene-mediated grain development
• In addition, the OsERF115 orthologues are identified only in grass species, implying a conserved and unique role in the grain development of cereal crops
• Overexpression of OsERF115 significantly increases grain length, width, thickness and weight by promoting longitudinal elongation and transverse division of spikelet hull cells, as well as enhancing grain-filling activity, whereas its knockout mutations lead to the opposite effects, suggesting that OsERF115 positively regulates grain size and weight
• Importantly, haplotype analysis reveals that the SNP variations in the EIN3-binding sites of OsERF115 promoter are significantly associated with the OsERF115 expression levels and grain weight, suggesting that natural variations in the OsERF115 promoter contribute to grain-size diversity

• OsEIL1~MHZ6, OsERF115~AP2EREBP110, The OsEIL1-OsERF115-target gene regulatory module controls grain size and weight in rice., OsERF115 transcription is strongly induced by ethylene, and OsEIL1 directly binds to the promoter to activate its expression