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Basic Information
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CGSNL Gene Symbol
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GHD2
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Gene Symbol Synonym
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BBX8, OsBBX8, OsK, OsCCT09, OsGhd2, OsK/Ghd2, CCT09, Ghd2
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CGSNL Gene Name
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GRAIN NUMBER PLANT HEIGHT AND HEADING DATE 2
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Gene Name Synonym
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B-box-containing protein 8, CCT domain-containing gene 9, CCT (CO, CO-LIKE and TOC1) domain protein 9, CCT domain protein 9, "Grain number, plant height, and heading date2", CONSTANS-like 1 protein
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Protein Name
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B-BOX-CONTAINING PROTEIN 8
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Allele
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ghd2, Ghd2-CR
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Chromosome No.
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2
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Explanation
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a CONSTANS-like gene. GO:1900055: regulation of leaf senescence. GO:2000028: regulation of photoperiodism, flowering. GO:0080148: negative regulation of response to water deprivation.
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Trait Class
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Vegetative organ - Leaf
Reproductive organ - Heading date
Tolerance and resistance - Stress tolerance
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Expression
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Sequence/Locus
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cDNA Accession No.
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AK072346
AK120314
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MSU ID
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LOC_Os02g49880.1
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RAP ID
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Os02g0731700
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Links
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Oryzabase Chromosome View
(
IRGSP 1.0
/
Build5
)
RAP-DB
(
IRGSP 1.0
/
Build5
)
Related IDs List (
IRGSP 1.0
/
Build5
)
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INSD Accession List
(Test version)
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-
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Map
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Locate(cM)
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Link map
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Classical linkage map
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References
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Hu Q., Zhao Z., Ma L., Xia H., Ma Z., Xu P., Wang X., Zhu R., Zhao Y., Guo H., Zhu X., Zeng Y., Pan Y., Li D., Sun X., Li J., Zhang H., Li Z., Zhang Z.
Nat Commun 2025 16(1) 8848
Natural variation of GNP2 enhances grain number to benefit rice yield.
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Fan X., Wang P., Qi F., Hu Y., Li S., Zhang J., Liang L., Zhang Z., Liu J., Xiong L., Xing Y.
J Genet Genomics 2023
The CCT transcriptional activator Ghd2 constantly delays the heading date by upregulating CO3 in rice.
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Zhang J., Fan X., Hu Y., Zhou X., He Q., Liang L., Xing Y.
J Integr Plant Biol 2020
Global analysis of CCT family knockout mutants identifies four genes involved in regulating heading date in rice.
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Shalmani A., Jing X.Q., Shi Y., Muhammad I., Zhou M.R., Wei X.Y., Chen Q.Q., Li W.Q., Liu W.T., Chen K.M.
BMC Genomics 2019 20(1) 27
Characterization of B-BOX gene family and their expression profiles under hormonal, abiotic and metal stresses in Poaceae plants.
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Wang J., Wang R., Wang Y., Zhang L., Zhang L., Xu Y., Yao S.
Plant J. 2017
SHORT and Solid Culm/RFL/APO2 for culm development in rice.
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Liu J., Shen J., Xu Y., Li X., Xiao J., Xiong L.
J. Exp. Bot. 2016 67(19) 5785-5798
Ghd2, a CONSTANS-like gene, confers drought sensitivity through regulation of senescence in rice.
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Zhang L., Li Q., Dong H., He Q., Liang L., Tan C., Han Z., Yao W., Li G., Zhao H., Xie W., Xing Y.
Sci Rep 2015 5 7663
Three CCT domain-containing genes were identified to regulate heading date by candidate gene-based association mapping and transformation in rice.
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Huang J., Zhao X., Weng X., Wang L., Xie W.
PLoS ONE 2012 7(10) e48242
The rice B-box zinc finger gene family: genomic identification, characterization, expression profiling and diurnal analysis.
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Cockram J., Thiel T., Steuernagel B., Stein N., Taudien S., Paul C Bailey, Donal M O'Sullivan
PLoS ONE 2012 7(9) e45307
Genome dynamics explain the evolution of flowering time CCT domain gene families in the Poaceae.
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DB Reference
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Gramene ID
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-
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Ontologies
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Gene Ontology
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photoperiodism, flowering( GO:0048573 )
circadian rhythm( GO:0007623 )
response to water deprivation( GO:0009414 )
leaf senescence( GO:0010150 )
response to salt stress( GO:0009651 )
response to cold( GO:0009409 )
response to jasmonic acid stimulus( GO:0009753 )
response to gibberellin stimulus( GO:0009739 )
response to iron ion( GO:0010039 )
response to nickel ion( GO:0010045 )
response to cadmium ion( GO:0046686 )
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Trait Ontology
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drought tolerance( TO:0000276 )
leaf senescence( TO:0000249 )
salt tolerance( TO:0006001 )
cold tolerance( TO:0000303 )
jasmonic acid sensitivity( TO:0000172 )
gibberellic acid sensitivity( TO:0000166 )
iron sensitivity( TO:0000224 )
days to heading( TO:0000137 )
flowering time( TO:0002616 )
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Plant Ontology
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4 leaf senescence stage( PO:0001054 )
leaf( PO:0025034 )
shoot system( PO:0009006 )
leaf sheath( PO:0020104 )
flowering stage( PO:0007616 )
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Related Strains
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-
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Phenotype images
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-
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Last updated
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Dec 22, 2025
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Update info.