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expand all sections collapse all sections  Oryza sativa Gene "d61"
ID 11647
Name d61 (GENE SYMBOL)
Synonyms (6)
GRAMENE GENEGR:0060226
Type Gene
Species Oryza sativa (Oryza sativa) [ GR_tax:013681 ]
Germplasm
Description The dwarf mutant d61 developed not only dm-type (characterized by reduced
elongation specifically in the second internode counted from the top) but also
dn-type (normal type). This mutant phenotype is caused by loss of function of a
rice BRASSINOSTEROID INSENSITIVE 1, OsBRI1 gene. OsBRI1 is similar to
Arabidopsis BRI gene (At4g39400), which encodes a putative BR receptor.
Functions of OsBRI1 involve in (1) internode elongation by inducing the
formation of the intercalary meristem and the longitudinal elongation of
internode cells, (2)bending of the lamina joint, and (3)skotomorphogenesis.
Several alleles were identified, the weakest allele, d61-7, showed semidwarfism
and erect leaves which results in producing biomass more effectively than
wildtype at high planting density.
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