Gene - Detail

Detail of Gene

Basic Information
CGSNL Gene Symbol BG1
Gene Symbol Synonym OsaBG1, OsBG1
CGSNL Gene Name BIG GRAIN1
Gene Name Synonym big grain1, big grain 1
Protein Name
Allele Bg1-D
Chromosome No. 3
Explanation GO:0060918: auxin transport. PO:0000905: seed yield.
Trait Class Biochemical character
Seed - Morphological traits
Seed - Morphological traits - Grain shape
Tolerance and resistance - Stress tolerance
Character as QTL - Yield and productivity
Expression
Sequence/Locus
cDNA Accession No. AK109502
MSU ID LOC_Os03g07920.1
RAP ID Os03g0175800
Links Oryzabase Chromosome View ( IRGSP 1.0 / Build5 )
RAP-DB ( IRGSP 1.0 / Build5 )
Related IDs List ( IRGSP 1.0 / Build5 )
INSD Accession List
(Test version) 		-
Map
Locate(cM)
Link map Classical linkage map
References
Xie Z., Sun Y., Zhan C., Qu C., Jin N., Gu X., Huang J.
Plant Cell 2024  37(1) 
The E3 ligase OsPUB33 controls rice grain size and weight by regulating the OsNAC120-BG1 module.
Chun Y., Fang J., Zafar S.A., Shang J., Zhao J., Yuan S., Li X.
Rice (N Y) 2020  13(1)  7
MINI SEED 2 (MIS2) Encodes a Receptor-like Kinase that Controls grain size and Shape in Rice.
Guo T., Chen K., Dong N.Q., Ye W.W., Shan J.X., Lin H.X.
J Integr Plant Biol 2019   
Tillering and small grain 1 dominates the tryptophan aminotransferase family required for local auxin biosynthesis in rice.
Yu H., Ruan B., Wang Z., Ren D., Zhang Y., Leng Y., Zeng D., Hu J., Zhang G., Zhu L., Gao Z., Chen G., Guo L., Chen W., Qian Q.
Front Plant Sci 2017  8  486
Fine Mapping of a Novel defective glume 1 (dg1) Mutant, Which Affects Vegetative and Spikelet Development in Rice.
Mishra B.S., Jamsheer K M., Singh D., Sharma M., Laxmi A.
Front Plant Sci 2017  8  1812
Genome-Wide Identification and Expression, Protein-Protein Interaction and Evolutionary Analysis of the Seed Plant-Specific BIG GRAIN and BIG GRAIN LIKE Gene Family.
Liu L., Tong H., Xiao Y., Che R., Xu F., Hu B., Liang C., Chu J., Li J., Chu C.
Proc. Natl. Acad. Sci. U.S.A. 2015  112(35)  11102-7
Activation of Big Grain1 significantly improves grain size by regulating auxin transport in rice.
DB Reference
Gramene ID -
Ontologies
Gene Ontology regulation of seed development( GO:0080050 )
plasma membrane( GO:0005886 )
response to auxin stimulus( GO:0009733 )
gravitropism( GO:0009630 )
Trait Ontology seed weight( TO:0000181 )
grain size( TO:0000397 )
grain yield( TO:0000396 )
auxin sensitivity( TO:0000163 )
gravity response trait( TO:0002693 )
grain weight( TO:0000590 )
Plant Ontology shoot system vascular system( PO:0025205 )
inflorescence vascular system( PO:0005028 )
Related Strains
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Phenotype images
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Last updated
Mar 16, 2026

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