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Basic Information
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CGSNL Gene Symbol
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CKT1
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Gene Symbol Synonym
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OHK5, HK, OsHK6, HK6, Crl1a, Ohk5, OsHK1, OsCKT1, ABL1, OsABL1
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CGSNL Gene Name
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CYTOKININ TOLERANT 1
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Gene Name Synonym
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histidine kinase 6, His kinase 6, cytokinin tolerant 1, adaxial-abaxial bipolar leaf1, ADAXIAL-ABAXIAL BIPOLAR LEAF 1
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Protein Name
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HISTIDINE KINASE 6
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Allele
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Osckt1, hk6, hk6-1, abl1, abl1-1d
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Chromosome No.
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2
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Explanation
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BR000247. cytokinin receptor. CHASE domain for cytokinin binding, His-kinase domain (HK), Receiver domain (Rec). two-component element. GO:2000280: regulation of root development. GO:2000904: regulation of starch metabolic process. GO:1902183: regulation of shoot apical meristem development. GO:2000028: regulation of photoperiodism, flowering. TO:0000748: leaf morphology trait. TO:0000822: leaf midvein morphology trait. GO:2000024: regulation of leaf development.
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Trait Class
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Biochemical character
Vegetative organ - Leaf
Vegetative organ - Root
Reproductive organ - Heading date
Reproductive organ - Pollination, fertilization, fertility
Character as QTL - Plant growth activity
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Expression
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Sequence/Locus
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cDNA Accession No.
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-
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MSU ID
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LOC_Os02g50480.1
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RAP ID
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Os02g0738400
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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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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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Chiba K., Tezuka T., Watanabe M., Nagasawa N., Satoh-Nagasawa N.
Genes Genet. Syst. 2025 100
A semi-dominant mutation in the gene encoding histidine kinase influences rice morphology.
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Tezuka T., Sato R., Jun-Ichi Itoh, Kobayashi T., Watanabe T., Chiba K., Shimizu H., Nabeta T., Sunohara H., Wabiko H., Nagasawa N., Namiko Satoh-Nagasawa
Development 2024 151(16)
Adaxial-abaxial bipolar leaf genes encode a putative cytokinin receptor and HD-Zip III, and control the formation of ectopic shoot meristems in rice.
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Burr C.A., Sun J., Yamburenko M.V., Willoughby A., Hodgens C., Boeshore S.L., Elmore A., Atkinson J., Nimchuk Z.L., Bishopp A., Schaller G.E., Kieber J.J.
Development 2020 147(20)
The HK5 and HK6 cytokinin receptors mediate diverse developmental pathways in rice.
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Ding W., Tong H., Zheng W., Ye J., Pan Z., Zhang B., Zhu S.
Front Plant Sci 2017 8 88
Isolation, Characterization and Transcriptome Analysis of a Cytokinin Receptor Mutant Osckt1 in Rice.
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Choi J., Lee J., Kim K., Cho M., Ryu H., An G., Hwang I.
Plant Cell Physiol. 2012 53(7) 1334-43
Functional Identification of OsHk6 as a Homotypic cytokinin receptor in Rice with Preferential Affinity for iP.
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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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Ito,Y. and Kurata,N.
Gene 2006 382 57-65
Identification and characterization of cytokinin-signalling gene families in 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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Qiu-Min Han, Jiang H., Qi X., YU J., WU P.
J. Zhejiang Univ. Sci. 2004 5(6) 629-33
A CHASE domain containing protein kinase OsCRL4, represents a new AtCRE1-like gene family 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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protein histidine kinase activity( GO:0004673 )
two-component sensor activity( GO:0000155 )
two-component response regulator activity( GO:0000156 )
ATP binding( GO:0005524 )
regulation of transcription, DNA-dependent( GO:0006355 )
membrane( GO:0016020 )
endoplasmic reticulum( GO:0005783 )
starch metabolic process( GO:0005982 )
sucrose metabolic process( GO:0005985 )
response to cytokinin stimulus( GO:0009735 )
cytokinin mediated signaling( GO:0009736 )
cytokinin receptor activity( GO:0009884 )
regulation of photosynthesis( GO:0010109 )
chlorophyll biosynthetic process( GO:0015995 )
peptidyl-histidine phosphorylation( GO:0018106 )
regulation of secondary metabolic process( GO:0043455 )
root development( GO:0048364 )
leaf development( GO:0048366 )
regulation of cell division( GO:0051302 )
photoperiodism, flowering( GO:0048573 )
regulation of shoot development( GO:0048831 )
regulation of flower development( GO:0009909 )
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Trait Ontology
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cytokinin sensitivity( TO:0000167 )
root development trait( TO:0000656 )
growth and development trait( TO:0000357 )
leaf width( TO:0000370 )
inflorescence anatomy and morphology trait( TO:0000373 )
flower development trait( TO:0000622 )
shoot development trait( TO:0000654 )
shoot apical meristem development( TO:0006020 )
days to heading( TO:0000137 )
flowering time( TO:0002616 )
panicle number( TO:0000152 )
sterility related trait( TO:0000485 )
leaf size( TO:0002637 )
photosynthetic ability( TO:0000316 )
panicle length( TO:0000040 )
grain number( TO:0002759 )
grain thickness( TO:0000399 )
flag leaf lamina width( TO:0002758 )
leaf length( TO:0000135 )
leaf lamina pubescence( TO:0000055 )
stomatal conductance( TO:0000522 )
photosynthetic rate( TO:0001015 )
leaf development trait( TO:0000655 )
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Plant Ontology
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root development stage( PO:0007520 )
root tip( PO:0000025 )
root primordium( PO:0005029 )
lateral root tip( PO:0000027 )
lateral root( PO:0020121 )
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Related Strains
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Phenotype images
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Last updated
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Jul 2, 2025
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Update info.