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Basic Information
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CGSNL Gene Symbol
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APO1
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Gene Symbol Synonym
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apo1(t), apo1, SCM2, SCM2/APO1, OsFbox321, Os_F0393, Pbl6/APO1, Pbl6, OsPbl6, OsFBX202, FBX202
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CGSNL Gene Name
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ABERRANT PANICLE ORGANIZATION 1
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Gene Name Synonym
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aberrant panicle organization 1, aberrant panicle organization-1, STRONG CULM 2, STRONG CULM2, F-box protein 321, PRIMARY BRANCH LENGTH6, PRIMARY BRANCH LENGTH 6, F-box-type E3 ubiquitin ligase X202
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Protein Name
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FOX-BOX PROTEIN
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Allele
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apo1-1, apo1-2, apo1-3, apo1-cri, SCM2-Habataki, SCM2-ST6, Pbl6-ST-1, Pbl6-ST-6
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Chromosome No.
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6
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Explanation
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AB292777. GSE151043. Gene ID of 1892S: Os1892S06G022880. This gene temporally regulates the conversion of meristem identity in the reproductive phase. Transcriptional cofactor. Enhance inflorescence branching phenotype. GRO:0007048; 04-stem elongation stage ; GRO:0007148; 05-booting stage ; GRO:0007044; 06-heading stage. TO:0020083: stem diameter. TO:0000847: panicle inflorescence morphology trait. TO:0000784: inflorescence branch morphology trait.
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Trait Class
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Vegetative organ - Culm
Reproductive organ - Inflorescence
Reproductive organ - panicle
Tolerance and resistance - Stress tolerance
Character as QTL - Yield and productivity
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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_Os06g45460.1
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RAP ID
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Os06g0665400
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Links
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Oryzabase Chromosome View
(
IRGSP 1.0
/
Build5
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RAP-DB
(
IRGSP 1.0
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Build5
)
Related IDs List (
IRGSP 1.0
/
Build5
)
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INSD Accession List
(Test version)
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Link to INSD Accession List
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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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Zhang W., Zhou L., Ni D., Ni J., Song F., Yang L., Zhang D.
Plants (Basel) 2025 14(12)
Genetic Analysis of Lodging Resistance in 1892S Based on the T2T Genome: Providing a Genetic Approach for the Improvement of Two-Line Hybrid Rice Varieties.
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Lv Y., Zhang X., Hu Y., Liu S., Yin Y., Wang X.
Front Plant Sci 2023 14 1162828
BOS1 is a basic helix-loop-helix transcription factor involved in regulating panicle development in rice.
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Agata A., Ashikari M., Sato Y., Kitano H., Hobo T.
Breed. Sci. 2023 73(1) 86-94
Designing rice panicle architecture via developmental regulatory genes.
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Prakash S., Rai R., Zamzam M., Ahmad O., Peesapati R., Vijayraghavan U.
Front Plant Sci 2022 13 865928
OsbZIP47 Is an Integrator for Meristem Regulators During Rice Plant Growth and Development.
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Wang R., You X., Zhang C., Fang H., Wang M., Zhang F., Kang H., Xu X., Liu Z., Wang J., Zhao Q., Wang X., Hao Z., He F., Tao H., Wang D., Wang J., Fang L., Qin M., Zhao T., Zhang P., Xing H., Xiao Y., Liu W., Xie Q., Wang G.L., Ning Y.
Genome Biol. 2022 23(1) 154
An ORFeome of rice E3 ubiquitin ligases for global analysis of the ubiquitination interactome.
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Liu M., Fan F., He S., Guo Y., Chen G., Li N., Li N., Yuan H., Si F., Yang F., Li S.
Rice (N Y) 2022 15(1) 17
Creation of Elite Rice with High-Yield, Superior-Quality and High Resistance to Brown Planthopper Based on Molecular Design.
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Wang C., Yang X., Li G.
Int J Mol Sci 2021 22(7)
Molecular Insights into inflorescence meristem Specification for Yield Potential in Cereal Crops.
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Huang L., Hua K., Xu R., Zeng D., Wang R., Dong G., Zhang G., Lu X., Fang N., Wang D., Duan P., Zhang B., Liu Z., Li N., Luo Y., Qian Q., Yao S., Li Y.
Plant Cell 2021
The LARGE2-APO1/APO2 regulatory module controls panicle size and grain number in rice.
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Agata A., Ando K., Ota S., Kojima M., Takebayashi Y., Takehara S., Doi K., Ueguchi-Tanaka M., Suzuki T., Sakakibara H., Matsuoka M., Ashikari M., Inukai Y., Kitano H., Hobo T.
Commun Biol 2020 3(1) 302
Diverse panicle architecture results from various combinations of Prl5/GA20ox4 and Pbl6/APO1 alleles.
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Jiang S., Sun S., Bai L., Ding G., Wang T., Xia T., Jiang H., Zhang X., Zhang F.
PLoS ONE 2017 12(7) e0181037
Resequencing and variation identification of whole genome of the japonica rice variety "Longdao24" with high yield.
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Kim S.R., Ramos J., Ashikari M., Virk P.S., Torres E.A., Nissila E., Hechanova S.L., Mauleon R., Jena K.K.
Rice (N Y) 2016 9(1) 12
Development and validation of allele-specific SNP/indel markers for eight yield-enhancing genes using whole-genome sequencing strategy to increase yield potential of rice, Oryza sativa L.
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Liang W., Shang F., Lin Q., Lou C., Zhang J.
Gene 2014 537(1) 1-5
Tillering and panicle branching genes in rice.
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Peng Y., Gao Z., Zhang B., Liu C., Xu J., Ruan B., Hu J., Dong G., Guo L., Liang G., Qian Q.
Plant Cell Rep. 2014 33(11) 1843-50
Fine mapping and candidate gene analysis of a major QTL for panicle structure in rice.
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Ikeda M., Miura K., Aya K., Kitano H., Matsuoka M.
Curr. Opin. Plant Biol. 2013 16(2) 213-20
Genes offering the potential for designing yield-related traits in rice.
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Ikeda-Kawakatsu K., Maekawa M., Izawa T., Itoh J.I., Nagato Y.
Plant J. 2012 69(1) 168-80
ABERRANT PANICLE ORGANIZATION 2/RFL, the rice ortholog of Arabidopsis LEAFY, suppresses the transition from inflorescence meristem to floral meristem through interaction with APO1.
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Miura K., Ashikari M., Matsuoka M.
Trends Plant Sci. 2011 16(6) 319-26
The role of QTLs in the breeding of high-yielding rice.
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Hua Z., Zou C., Shin-Han Shiu, Richard D Vierstra
PLoS ONE 2011 6(1) e16219
Phylogenetic comparison of F-Box (FBX) gene superfamily within the plant kingdom reveals divergent evolutionary histories indicative of genomic drift.
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Ookawa T, Hobo T, Yano M, Murata K, Ando T, Miura H, Asano K, Ochiai Y, Ikeda M, Nishitani R, Ebitani T, Ozaki H, Angeles ER, Hirasawa T, Matsuoka M
Nat Commun. 2010 1 132.
New approach for rice improvement using a pleiotropic QTL gene for lodging resistance and yield.
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Xu G., Ma H., Nei M., Kong H.
Proc. Natl. Acad. Sci. U.S.A. 2009 106(3) 835-40
Evolution of F-box genes in plants: different modes of sequence divergence and their relationships with functional diversification.
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Ikeda-Kawakatsu K,Yasuno N,Oikawa T,Iida S,Nagato Y,Maekawa M,Kyozuka J
Plant Physiol. 2009 150 736-47
Expression level of ABERRANT PANICLE ORGANIZATION1 determines rice inflorescence form through control of cell proliferation in the meristem.
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Yang X., Udaya C Kalluri, Jawdy S., Lee E Gunter, Yin T., Timothy J Tschaplinski, David J Weston, Ranjan P., Gerald A Tuskan
Plant Physiol. 2008 148(3) 1189-200
The F-box gene family is expanded in herbaceous annual plants relative to woody perennial plants.
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Jain M, Nijhawan A, Arora R, Agarwal P, Ray S, Sharma P, Kapoor S, Tyagi AK, Khurana JP.
Plant Physiol. 2007 143(4) 1467-1483
F-Box Proteins in Rice. Genome-Wide Analysis, Classification, Temporal and Spatial Gene Expression during Panicle and Seed Development, and Regulation by Light and Abiotic Stress.
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Ikeda,K., Ito,M., Nagasawa,N., Kyozuka,J. and Nagato,Y.
Plant J. 2007 51(6) 1030-1040
Rice ABERRANT PANICLE ORGANIZATION 1, encoding an F-box protein, regulates meristem fate
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Ikeda K, Nagasawa N, Nagato Y.
Dev. Biol. 2005 282(2) 349-60.
ABERRANT PANICLE ORGANIZATION 1 temporally regulates meristem identity in rice.
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Ikeda, K., N. Nagasawa and Y. Nagato
RGN 2002 19 42-45.
ABERRANT PANICLE ORGANIZATION 1 gene regulates the meristem organization in rice.
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Ikeda, K., N. Nagasawa and Y. Nagato
RGN 2000 17 31-34
ABERRANT PANICLE ORGANIZATION 1 gene regulates meristem identity in reproductive phase.
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DB Reference
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Gramene ID
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GR:0060058
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Ontologies
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Gene Ontology
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cell differentiation( GO:0030154 )
inflorescence development( GO:0010229 )
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Trait Ontology
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panicle type( TO:0000089 )
grain number( TO:0002759 )
stem thickness( TO:0000339 )
shoot branching( TO:0002639 )
inflorescence branching( TO:0000050 )
lodging incidence( TO:0000068 )
stem strength( TO:0000051 )
spikelet number( TO:0000456 )
yield trait( TO:0000371 )
flower anatomy and morphology trait( TO:0000499 )
primary branching of inflorescence( TO:0000052 )
primary branch length( TO:0000641 )
panicle length( TO:0000040 )
panicle size( TO:0006032 )
inflorescence development trait( TO:0000621 )
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Plant Ontology
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spikelet floret( PO:0009082 )
inflorescence( PO:0009049 )
inflorescence development stage( PO:0001083 )
shoot apical meristem( PO:0020148 )
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Related Strains
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Phenotype images
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Last updated
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Oct 10, 2025
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Update info.