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Basic Information
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CGSNL Gene Symbol
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HST1
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Gene Symbol Synonym
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RR22, OsRR22, Rrb4, Orr2, OsRR20, RR20, OsRRB4, RRB4, OsHST1, OsRRB5, RRB5
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CGSNL Gene Name
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HITOMEBORE SALT TOLERANT 1
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Gene Name Synonym
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B-type response regulator 2, B-type RR 4, hitomebore salt tolerant 1
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Protein Name
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B-TYPE RESPONSE REGULATOR 2
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Allele
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Chromosome No.
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6
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Explanation
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BR000251. B-type RR. OsRR22 in Saha et al. 2024, Zhang et al. 2019, Pagnotta 2025. OsRRB5 in Chen et al. 2025.
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Trait Class
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Heterochrony
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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AK073624
AK101165
AK102959
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MSU ID
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LOC_Os06g08440.1
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RAP ID
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Os06g0183100
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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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Pagnotta M.A.
Int J Mol Sci 2025 26(18)
Molecular Breeding for Abiotic Stress Tolerance in Crops: Recent Developments and Future Prospectives.
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Chen R., Huang Q., Xu Y., Wang Z., Li N., Lu Y., Tao T., Hua Y., Wang G., Wang S., Wang H., Zhou Y., Xu Y., Li P., Xu C., Yang Z.
Int J Mol Sci 2025 26(5)
Comparative Genomic Analysis of the Poaceae Cytokinin Response Regulator <i>RRB</i> Gene Family and Functional Characterization of <i>OsRRB5</i> in Drought Stress Tolerance in Rice.
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Saha S.R., Islam S.M.S., Itoh K.
Genes Genet. Syst. 2024
Identification of abiotic stress responsive genes: A genome wide analysis of the cytokinin response regulator gene family in rice.
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Hu X., Yu P., Zhang Y., Gao Z., Sun B., Wu W., Deng C., Abbas A., Hong Y., Sun L., Liu Q., Xue P., Wang B., Zhan X., Cao L., Cheng S.
J. Exp. Bot. 2023 74(5) 1501-1516
Mutation of DEFECTIVE EMBRYO SAC1 results in a low seed-setting rate in rice by regulating embryo sac development.
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Mao C., He J., Liu L., Deng Q., Yao X., Liu C., Qiao Y., Li P., Ming F.
Plant Biotechnol. J. 2020 18(2) 429-442
OsNAC2 integrates auxin and cytokinin pathways to modulate rice root development.
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Zhang A., Liu Y., Wang F., Li T., Chen Z., Kong D., Bi J., Zhang F., Luo X., Wang J., Tang J., Yu X., Liu G., Luo L.
Mol. Breed. 2019 39
Enhanced rice salinity tolerance via CRISPR/Cas9-targeted mutagenesis of the <i>OsRR22</i> gene.
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Takagi H., Tamiru M., Abe A., Yoshida K., Uemura A., Yaegashi H., Obara T., Oikawa K., Utsushi H., Kanzaki E., Mitsuoka C., Natsume S., Kosugi S., Kanzaki H., Matsumura H., Urasaki N., Kamoun S., Terauchi R.
Nat. Biotechnol. 2015
MutMap accelerates breeding of a salt-tolerant rice cultivar.
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Tsai Y.C., Weir N.R., Hill K., Zhang W., Kim H.J., Shiu S.H., Schaller G.E., Kieber J.J.
Plant Physiol. 2012 158(4) 1666-84
Characterization of genes involved in cytokinin signaling and metabolism from rice.
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Du L., Jiao F., Chu J., Jin G., Chen M., WU P.
Genomics 2007 89(6) 697-707
The two-component signal system in rice (Oryza sativa L.): a genome-wide study of cytokinin signal perception and transduction.
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G Eric Schaller, Doi K., Hwang I., Joseph J Kieber, Jitendra P Khurana, Kurata N., Mizuno T., Pareek A., Shin-Han Shiu, Wu P., Wing Kin Yip
Plant Physiol. 2007 143(2) 555-7
Nomenclature for two-component signaling elements of rice.
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Pareek A, Singh A, Kumar M, Kushwaha HR, Lynn AM, Singla-Pareek SL.
Plant Physiol. 2006 142(2) 380-97
Whole-genome analysis of Oryza sativa reveals similar architecture of two-component signaling machinery with Arabidopsis.
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Ito,Y. and Kurata,N.
Gene 2006 382 57-65
Identification and characterization of cytokinin-signalling gene families 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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response to salt stress( GO:0009651 )
response to cold( GO:0009409 )
response to abscisic acid stimulus( GO:0009737 )
response to jasmonic acid stimulus( GO:0009753 )
response to water deprivation( GO:0009414 )
response to osmotic stress( GO:0006970 )
response to alkalinity( GO:0010446 )
nucleus( GO:0005634 )
two-component signal transduction system (phosphorelay)( GO:0000160 )
regulation of transcription( GO:0045449 )
response to cytokinin stimulus( GO:0009735 )
two-component response regulator activity( GO:0000156 )
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Trait Ontology
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alkali sensitivity( TO:0000481 )
osmotic response sensitivity( TO:0000095 )
drought tolerance( TO:0000276 )
cytokinin sensitivity( TO:0000167 )
jasmonic acid sensitivity( TO:0000172 )
abscisic acid sensitivity( TO:0000615 )
cold tolerance( TO:0000303 )
salt tolerance( TO:0006001 )
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Plant Ontology
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portion of meristem tissue( PO:0009013 )
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Related Strains
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Phenotype images
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Last updated
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Dec 17, 2025
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Update info.