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Basic Information
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CGSNL Gene Symbol
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SPX4
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Gene Symbol Synonym
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OsSPX4, Os-SPX4
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CGSNL Gene Name
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SPX DOMAIN PROTEIN 4
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Gene Name Synonym
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SPX (SYG/PHO81/XPR1) domain gene 4, SPX protein 4, SPX domain protein 4
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Protein Name
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SPX DOMAIN PROTEIN 4
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Allele
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spx4
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Chromosome No.
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3
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Explanation
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Q10B79. a phosphate signalling repressor. TO:0020102: phosphate content.TO:0020098: nitrate sensitivity. PO:0030123: panicle inflorescence. GO:1902347: response to strigolactone. GO:2000280: regulation of root development. GO:1901698: response to nitrogen compound.
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Trait Class
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Biochemical character
Vegetative organ - Root
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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AK066364
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MSU ID
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LOC_Os03g61200.1
LOC_Os03g61200.2
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RAP ID
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Os03g0827500
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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 Z., Tang Y., Ying S., Niu J., Wang T., Zhu H., Peng X.
Rice (N Y) 2025 18(1) 11
OsCBL1 Modulates the Nitrate-Induced Phosphate Response by Altering OsNLP4 Cytoplasmic-Nucleus Shuttling.
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Gu P., Tao W., Tao J., Sun H., Hu R., Wang D., Zong G., Xie X., Ruan W., Xu G., Yi K., Zhang Y.
New Phytol. 2023 239(2) 673-686
The D14-SDEL1-SPX4 cascade integrates the strigolactone and phosphate signalling networks in rice.
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Gao J., Ge S., Wang H., Fang Y., Sun L., He T., Cheng X., Wang D., Zhou X., Cai H., Li C., Liu Y., E Y., Meng J., Chen W.
Front Plant Sci 2023 14 1131937
Biochar-extracted liquor stimulates nitrogen related gene expression on improving nitrogen utilization in rice seedling.
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Zhang Z., Li Z., Wang W., Jiang Z., Guo L., Wang X., Qian Y., Huang X., Liu Y., Liu X., Qiu Y., Li A., Yan Y., Xie J., Cao S., Kopriva S., Li L., Kong F., Liu B., Wang Y., Hu B., Chu C.
Mol Plant 2021 14(3) 517-529
Modulation of nitrate-induced phosphate response by the MYB transcription factor RLI1/HINGE1 in the nucleus.
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He Q., Lu H., Guo H., Wang Y., Zhao P., Li Y., Wang F., Xu J., Mo X., Mao C.
Plant J. 2020
OsbHLH6 interacts with OsSPX4 and regulates the phosphate starvation response in rice.
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Wang W., Hu B., Li A., Chu C.
J. Exp. Bot. 2019
NRT1.1 in plants: functions beyond nitrate transporter.
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Hu B., Jiang Z., Wang W., Qiu Y., Zhang Z., Liu Y., Li A., Gao X., Liu L., Qian Y., Huang X., Yu F., Kang S., Wang Y., Xie J., Cao S., Zhang L., Wang Y., Xie Q., Kopriva S., Chu C.
Nat Plants 2019 5(4) 401-413
Nitrate-NRT1.1B-SPX4 cascade integrates nitrogen and phosphorus signalling networks in plants.
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Ruan W., Guo M., Wang X., Guo Z., Xu Z., Xu L., Zhao H., Sun H., Yan C., Yi K.
Mol Plant 2019 12(8) 1060-1074
Two RING-Finger Ubiquitin E3 Ligases Regulate the Degradation of SPX4, An Internal Phosphate Sensor, for Phosphate Homeostasis and Signaling in Rice.
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Lv Q., Zhong Y., Wang Y., Wang Z., Zhang L., Shi J., Wu Z., Liu Y., Mao C., Yi K., Wu P.
Plant Cell 2014 26(4) 1586-1597
SPX4 Negatively Regulates Phosphate Signaling and Homeostasis through Its Interaction with PHR2 in Rice.
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Wang Z,Hu H,Huang H,Duan K,Wu Z,Wu P
J. Integr. Plant Biol. 2009 51(7) 663-74
Regulation of OsSPX1 and OsSPX3 on expression of OsSPX domain genes and Pi-starvation signaling in rice.
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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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cellular response to cold( GO:0070417 )
cellular response to phosphate starvation( GO:0016036 )
nitrogen utilization( GO:0019740 )
phosphorus utilization( GO:0006794 )
response to nitrate( GO:0010167 )
response to nutrient( GO:0007584 )
phosphate ion homeostasis( GO:0055062 )
root development( GO:0048364 )
response to starvation( GO:0042594 )
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Trait Ontology
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abiotic stress trait( TO:0000168 )
stem length( TO:0000576 )
root length( TO:0000227 )
grain yield per panicle( TO:0000450 )
phosphorus sensitivity( TO:0000102 )
root development trait( TO:0000656 )
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Plant Ontology
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leaf( PO:0025034 )
root( PO:0009005 )
shoot system( PO:0009006 )
anther( PO:0009066 )
inflorescence( PO:0009049 )
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Related Strains
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Phenotype images
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Last updated
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Sep 5, 2025
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Update info.