Difference between revisions of "Os12g0465700"
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| − | + | The rice '''''Os12g0465700''''' was reported as '''''DEC''''' in 2012 <ref name="ref1" /> by researchers from Japan. | |
==Annotated Information== | ==Annotated Information== | ||
| + | [[File:109-Os12g0465700.png|right|thumb|427px|'''Figure 1.''' ''Phenotypes of the dec-1 mutant.<ref name="ref1" />.'']] | ||
===Function=== | ===Function=== | ||
| − | + | * '''''DEC''''' regulates the phyllotactic pattern in rice. | |
| + | * '''''DEC''''' has opposite functions in the shoot apical meristem and root apical meristem. | ||
| + | * '''''DEC''''' encodes a plant-specific protein containing a glutamine-rich region and a conserved motif. | ||
| + | * '''''DEC''''' controls the phyllotactic pattern by affecting cytokinin signaling in rice. | ||
===Expression=== | ===Expression=== | ||
| − | + | * Expression analysis showed that several type A response regulator genes that act in the cytokinin signaling pathway were down-regulated in the dec mutant. | |
| − | === | + | ===Phenotypic analysis=== |
| − | + | * Two allelic mutants, dec-1 and dec-2, were originally identified as embryonic mutants exhibiting abnormally shaped mature embryos. | |
| + | * In mature dec-1 embryos, although all embryonic organs and three leaf primordia were present, a malformed scutellum and an enlarged SAM were observed (Figure 1a,b). | ||
| + | * After germination, the majority of dec-1 seedlings produced short and erect leaves with an abnormal phyllotaxy (Figure 1c). | ||
| + | * Cross-sections of the shoot apex revealed that the wild-type displayed a distichous phyllotaxy with a divergence angle of 180°. In contrast, approximately half of dec-1 seedlings exhibited a decussate phyllotaxy, except for the first embryonic leaf (Figure 1d,e). | ||
| + | * Thus, the dec mutation caused conversion of a distichous phyllotaxy to a decussate phyllotaxy during early vegetative development. | ||
You can also add sub-section(s) at will. | You can also add sub-section(s) at will. | ||
==Labs working on this gene== | ==Labs working on this gene== | ||
| − | + | * Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, 113-8657, Japan | |
| + | * RIKEN Plant Science Center, Tsurumi, Yokohama, 230-0045, Japan | ||
==References== | ==References== | ||
| − | + | <references> | |
| + | * <ref name="ref1"> | ||
| + | Itoh J, Hibara K, Kojima M, Sakakibara H, Nagato Y. Rice DECUSSATE controls | ||
| + | phyllotaxy by affecting the cytokinin signaling pathway. Plant J. 2012 | ||
| + | Dec;72(6):869-81. PubMed PMID: 22889403. | ||
| + | </ref> | ||
| + | </references> | ||
==Structured Information== | ==Structured Information== | ||
[[Category:Genes]][[Category:Oryza Sativa Japonica Group]][[Category:Japonica Chromosome 12]] | [[Category:Genes]][[Category:Oryza Sativa Japonica Group]][[Category:Japonica Chromosome 12]] | ||
Revision as of 16:12, 17 October 2016
The rice Os12g0465700 was reported as DEC in 2012 [1] by researchers from Japan.
Contents
Annotated Information
Figure 1. Phenotypes of the dec-1 mutant.[1].
Function
- DEC regulates the phyllotactic pattern in rice.
- DEC has opposite functions in the shoot apical meristem and root apical meristem.
- DEC encodes a plant-specific protein containing a glutamine-rich region and a conserved motif.
- DEC controls the phyllotactic pattern by affecting cytokinin signaling in rice.
Expression
- Expression analysis showed that several type A response regulator genes that act in the cytokinin signaling pathway were down-regulated in the dec mutant.
Phenotypic analysis
- Two allelic mutants, dec-1 and dec-2, were originally identified as embryonic mutants exhibiting abnormally shaped mature embryos.
- In mature dec-1 embryos, although all embryonic organs and three leaf primordia were present, a malformed scutellum and an enlarged SAM were observed (Figure 1a,b).
- After germination, the majority of dec-1 seedlings produced short and erect leaves with an abnormal phyllotaxy (Figure 1c).
- Cross-sections of the shoot apex revealed that the wild-type displayed a distichous phyllotaxy with a divergence angle of 180°. In contrast, approximately half of dec-1 seedlings exhibited a decussate phyllotaxy, except for the first embryonic leaf (Figure 1d,e).
- Thus, the dec mutation caused conversion of a distichous phyllotaxy to a decussate phyllotaxy during early vegetative development.
You can also add sub-section(s) at will.
Labs working on this gene
- Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, 113-8657, Japan
- RIKEN Plant Science Center, Tsurumi, Yokohama, 230-0045, Japan
