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Basic Information
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CGSNL Gene Symbol
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TAR1
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Gene Symbol Synonym
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OsTAR1, FBL
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CGSNL Gene Name
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TRYPTOPHAN AMINOTRANSFERASE 1
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Gene Name Synonym
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Trp aminotransferase 1, FIBLIKE, FIB LIKE, TRYPTOPHAN AMINOTRANSFERASE RELATED 1
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Protein Name
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TRYPTOPHAN AMINOTRANSFERASE 1
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Allele
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ostar1
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Chromosome No.
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5
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Explanation
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a paralog of FIB. orthologous to TAA1/TAR1/TAR2 of Arabidopsis and VT2/VT2-like of maize. TSG1 homolog. PO:0030104: caryopsis fruit.
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Trait Class
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Biochemical character
Vegetative organ - Leaf
Vegetative organ - Culm
Seed - Morphological traits - Grain shape
Seed - Physiological traits - Storage substances
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Expression
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Sequence/Locus
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cDNA Accession No.
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AK071687
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MSU ID
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LOC_Os05g07720.1
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RAP ID
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Os05g0169300
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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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Liu N., Li J., Wang C.C., Yang T., Li A., Zeng P., Peng H., Zhang Y., Huang D., Zheng X., Zhang X.Q.
Plants (Basel) 2025 14(17)
Extensin-like Protein OsPEX1 Modulates Grain Filling in Rice.
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Zhang L., Feng P., Deng Y., Yin W., Wan Y., Lei T., He G., Wang N.
Rice (N Y) 2021 14(1) 13
Decreased Vascular Bundle 1 affects mitochondrial and plant development in rice.
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Xu X., E Z., Zhang D., Yun Q., Zhou Y., Niu B., Chen C.
Plant Physiol. 2021 185(3) 934-950
OsYUC11-mediated auxin biosynthesis is essential for endosperm development of rice.
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Dong N.Q., Sun Y., Guo T., Shi C.L., Zhang Y.M., Kan Y., Xiang Y.H., Zhang H., Yang Y.B., Li Y.C., Zhao H.Y., Yu H.X., Lu Z.Q., Wang Y., Ye W.W., Shan J.X., Lin H.X.
Nat Commun 2020 11(1) 2629
UDP-glucosyltransferase regulates grain size and abiotic stress tolerance associated with metabolic flux redirection in rice.
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Paul P., Dhatt B.K., Miller M., Folsom J.J., Wang Z., Krassovskaya I., Liu K., Sandhu J., Yu H., Zhang C., Obata T., Staswick P., Walia H.
Plant Physiol. 2020 182(2) 933-948
<i>MADS78</i> and <i>MADS79</i> Are Essential Regulators of Early Seed Development in Rice.
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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.
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Yoshikawa T., Ito M., Sumikura T., Nakayama A., Nishimura T., Kitano H., Yamaguchi I., Koshiba T., Hibara K.I., Nagato Y., Itoh J.I.
Plant J. 2014 78(6) 927-36
The rice FISH BONE gene encodes a tryptophan aminotransferase, which affects pleiotropic auxin-related processes.
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Abu-Zaitoon YM., Bennett K., Normanly J., Nonhebel H.M.
Physiol Plant 2012 146(4) 487-99
A large increase in IAA during development of rice grains correlates with the expression of tryptophan aminotransferase OsTAR1 and a grain-specific YUCCA.
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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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cotyledon development( GO:0048825 )
cotyledon vascular tissue pattern formation( GO:0010588 )
gynoecium development( GO:0048467 )
indoleacetic acid biosynthetic process( GO:0009684 )
leaf development( GO:0048366 )
maintenance of root meristem identity( GO:0010078 )
phloem or xylem histogenesis( GO:0010087 )
primary root development( GO:0080022 )
response to ethylene stimulus( GO:0009723 )
shade avoidance( GO:0009641 )
cytoplasm( GO:0005737 )
L-alanine:2-oxoglutarate aminotransferase activity( GO:0004021 )
L-glutamine:2-oxoglutarate aminotransferase activity( GO:0080100 )
endoplasmic reticulum( GO:0005783 )
pyridoxal phosphate binding( GO:0030170 )
carbon-sulfur lyase activity( GO:0016846 )
L-tyrosine:pyruvate aminotransferase activity( GO:0080098 )
L-tyrosine:2-oxoglutarate aminotransferase activity( GO:0004838 )
L-tryptophan:pyruvate aminotransferase activity( GO:0080097 )
auxin mediated signaling pathway( GO:0009734 )
L-tryptophan:2-oxoglutarate aminotransferase activity( GO:0050362 )
L-phenylalanine:pyruvate aminotransferase activity( GO:0047312 )
L-phenylalanine:2-oxoglutarate aminotransferase activity( GO:0080130 )
L-methionine:2-oxoglutarate aminotransferase activity( GO:0080099 )
L-leucine:2-oxoglutarate aminotransferase activity( GO:0050048 )
positive gravitropism( GO:0009958 )
endosperm development( GO:0009960 )
auxin biosynthetic process( GO:0009851 )
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Trait Ontology
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plant height( TO:0000207 )
leaf curling( TO:0002681 )
auxin sensitivity( TO:0000163 )
seed size( TO:0000391 )
chalky endosperm( TO:0000266 )
seed development trait( TO:0000653 )
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Plant Ontology
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pollen( PO:0025281 )
endosperm development stage( PO:0007633 )
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Related Strains
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Phenotype images
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Last updated
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Jan 19, 2026
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Update info.