Gene - Detail

Detail of Gene

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Basic Information
CGSNL Gene Symbol SUG
Gene Symbol Synonym sug(su), su, sug1, su1, su-1
Gene Name Synonym sugary endosperm, sugary endosperm-1, sugary-1, sugary
Protein Name
Allele sugary-1
Chromosome No. 8
Explanation Endosperm is wrinkled but translucent and hard [597]. The inner part of starch layer is not stained by I-KI solution, but the outer part is stained weakly [440]. PO:0009089; endosperm. GRO:0007045; 09-mature grain stage. sugary in Nakamura et al. 1992. The starch mutant sugary contains reduced activities of isoamylase1 (ISA1) (Kawagoe et al. 2005).
Trait Class Seed - Morphological traits - Endosperm
Seed - Physiological traits - Storage substances
cDNA Accession No. -
Links -
INSD Accession List
(Test version)
Locate(cM) 115.0
Link map Classical linkage map
Kawagoe Y., Kubo A., Satoh H., Takaiwa F., Nakamura Y.
Plant J. 2005  42(2)  164-74
Roles of isoamylase and ADP-glucose pyrophosphorylase in starch granule synthesis in rice endosperm.
Kubo A., Fujita N., Harada K., Matsuda T., Satoh H., Nakamura Y.
Plant Physiol. 1999  121(2)  399-410
The starch-debranching enzymes isoamylase and pullulanase are both involved in amylopectin biosynthesis in rice endosperm
Nakamura Y., Kubo A., Shimamune T., Matsuda T., Harada K., Satoh H.
The Plant Journal 1997  12(1)  143-153
Correlation between activities of starch debranching enzyme and alpha-polyglucan structure in endosperms of sugary-1 mutants of rice
Kubo, A., K. Harada, T. Shimamune, T. Matsuda, H. Sato and Y. Nakamura
Breeding Science 1996  46(Suppl. 2)  202
Influence of sugary-1 mutations on key enzymes of starch biosynthesis and polyglucan structure in developing endosperms of rice.
Nakamura Y., Umemoto T., Takahata Y., Komae K., Amano E., Satoh H.
Physiol Plant 1996  97(3)  491-498
Changes in structure of starch and enzyme activities affected by sugary mutations in developing rice endosperm. Possible role of starch debranching enzyme (R-enzyme) in amylopectin biosynthesis
Plant Science 1996  121  1-18
Some properties of starch debranching enzymes and their possible role in amylopectin biosynthesis
Ideta, O., A. Yoshimura, M. Ashikari and N. Iwata
RGN 1994  11  116-117.
Integration of conventional and RFLP linkage maps in rice.III. Choromosomes 5, 7, 8 and 12.
Nakamura Y, Umemoto T, Takahata Y, Amano E
Gamma Field Symp. 1992  31  25-44
Characteristics and roles of key enzymes associated with starch biosynthesis in rice endosperm
Khush, G.S. and R.J. Singh, S.C. Sur and A.L. Librojo
Genetics 1984  107  141-163.
Primary trisomics of rice Origin, morphology, cytology and use in linkage mapping.
Iwata, N. and T. Omura
Jpn. J. Genet. 1984  59(3)  199-204.
Studies on the trisomics in rice plants (Oryza sativa L.). VI. An accomplishment of a trisomic series in japonica rice plants.
Yano, M., Y. Isono, H. Satoh and T. Omura
Japan. J. Breed. 1984  34(1)  43-49.
Gene analysis of sugary and shrunken mutants of rice, Oryza sativa L.
Iwata, N., H. Satoh and T. Omura
Japan. J. Breed. 1983  33(Suppl. 1)  114-115.
Linkage studies in rice.On some marker genes locating on chromosome 12.
Satoh, H. and T. Omura
Japan. J. Breed. 1981  31(3)  316-326.
New endosperm mutations induced by chemical mutagen in rice, Oryza sativa L.
TextPresso Search Search textpresso for SUG ( Recent references may be retrievable, but without any warranty )
DB Reference
Gramene ID GR:0060948
Gene Ontology amyloplast starch grain( GO:0009568 )
Trait Ontology sugary endosperm( TO:0000099 )
endosperm quality( TO:0000587 )
amylose content( TO:0000196 )
starch grain synthesis( TO:0002658 )
Plant Ontology endosperm( PO:0009089 )
Related Strains
Stocks for Genes 1
F Lines 6
Phenotype images
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Photo from A. Yoshimura
Last updated
Jun 3, 2016

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