- Information
- Symbol: BG1
- MSU: LOC_Os03g07920
- RAPdb: Os03g0175800
- Publication
- Activation of Big Grain1 significantly improves grain size by regulating auxin transport in rice., 2015, Proc Natl Acad Sci U S A.
- Genbank accession number
- Key message
- Overexpression of BG1 leads to significantly increased grain size, and the severe lines exhibit obviously perturbed gravitropism
- Manipulation of BG1 in both rice and Arabidopsis can enhance plant biomass, seed weight, and yield
- In addition, the mutant has increased sensitivities to both auxin and N-1-naphthylphthalamic acid, an auxin transport inhibitor, whereas knockdown of BG1 results in decreased sensitivities and smaller grains
- Moreover, BG1 is specifically induced by auxin treatment, preferentially expresses in the vascular tissue of culms and young panicles, and encodes a novel membrane-localized protein, strongly suggesting its role in regulating auxin transport
- Connection
- BG1, OsMADS34~PAP2, Regulatory Role of OsMADS34 in the Determination of Glumes Fate, Grain Yield, and Quality in Rice., Interesting, transcriptional activity analysis revealed that OsMADS34 protein was a transcription repressor and it may influence grain yield by suppressing the expressions of BG1, GW8, GW2, and GL7 in the m34-z mutant
- BG1, sh4~SHA1~SG5, Short grain 5 controls grain length in rice by regulating cell expansion., Moreover, the expression levels of BG1, GS2, and DEP1 were reduced in sg5 plants, and dual-luciferase (LUC) assays showed that SG5 can bind to the BG1 gene promoter
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