Os10g0397400 - Revision history

Rice2012: /* References */

2015-06-13T08:44:51Z

‎References

Lmw2015: /* Structured Information */

2015-06-12T03:29:11Z

‎Structured Information

Tangwei: /* Evolution */

2014-06-09T01:47:16Z

‎Evolution

Tangwei: /* Expression */

2014-06-09T01:34:15Z

‎Expression

Tangwei: /* Expression */

2014-06-09T01:05:58Z

‎Expression

Tangwei: /* Expression */

2014-06-09T00:57:21Z

‎Expression

Tangwei: /* Expression */

2014-05-28T11:37:32Z

‎Expression

Tangwei: /* Expression */

2014-05-28T11:31:50Z

‎Expression

Tangwei: /* Evolution */

2014-05-28T11:22:50Z

‎Evolution

Tangwei: /* Evolution */

2014-05-28T11:16:50Z

‎Evolution

← Older revision		Revision as of 08:44, 13 June 2015
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	[[Category:Japonica Chromosome 10]]		[[Category:Japonica Chromosome 10]]
	[[Category:Chromosome 10]]		[[Category:Chromosome 10]]
		+	== Structured Information ==

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 *3.Itoh,T., Tanaka,T., Barrero,R.A. et al. Curated genome annotation of Oryza sativa ssp. japonica and comparative genome analysis with Arabidopsis thaliana.''Genome Res''.17(2),175-183(2007)
 [[Category:Genes]]
 [[Category:Japonica mRNA]]

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 ===Evolution===
 The ''brd2'' locus contains a single base deletion in the coding region of ''Dim/dwf1'',a homolog of Arabidopsis thaliana ''DIMINUTO/DWARF1''(''DIM/DWF1'').It is a knockout allele of ''Dim/dwf1''.
 ==Labs working on this gene==

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 [[File:Figure1.png|right|thumb|320px|'''Figure 1.''' ''Phenotype of the brd2 Mutant'']]
 Recently, we identified a dwarf mutant, brd2,which displays the typical BR-deficient phenotype but also has characteristics not observed in the other mutants.Figure 1A shows the gross morphology of the mutant in an early vegetative stage. At this stage, the mutant plant (right) displays a moderate dwarf phenotype with a height 70% of the wild-type plant (left) but no other obvious abnormalities. However, as development progresses, the phenotype becomes more severe with characteristics typical of BR-related mutants: dark-green, erect leaves and shortened leaf sheaths. After flowering, the height of the plant reaches only 40% of the wild type (Figure 1B). We compared the internode elongation patterns of ''brd2'', the wild type, and other BR-deficient mutants (Figure 1C). In the wild type, the five uppermost internodes elongate; the internodes are numbered from top to bottom such that the uppermost, just below the panicle, is designated as the first internode (Figure 1C).By contrast, the three BR-deficient mutants show different elongation patterns:''d2-1'' has a specific inhibition in the second internode,''brd1-1'' is completely defective in internode elongation, and the first internode of ''brd2'' elongates, but the lower internodes do not (Figure 1C).''d61-2'', which is defective in the rice ''Bri1'' gene, also exhibits dwarfism with a lack of internode elongation except for the first internode.The ''brd2'' mutant flowers and produces malformed panicles, but the numbers of spikelets and rachis branches, as well as fertility, are severely reduced (Figure 1D). The lengths of the first and second rachis branches in the panicle are also severely reduced. In contrast with these severe defects, the neck internode of the mutant is longer than that of the wild type (Figure 1D).This phenomenon is a common feature in rice BR-related mutants because long neck internodes are also observed in ''d2'' and ''d61-1''. In addition, the ''brd2'' mutant also exhibits shortened grains (Figure 1E) and defective root elongation and development (Figure 1F). Although one seminal root develops normally during embryogenesis, after germination the seminal root elongates to only two-thirds of the wild-type root and formation of the crown root is inhibited, but lateral root formation is not as severely affected as crown root formation.
 ===Evolution===

@@ Line 7: / Line 7: @@
 ===Expression===
 The ''brd2'' mutatant possess a semidwarf phenotype in the vegetative stage.Introduction of the wild-type ''Dim/dwf1'' gene into ''brd2'' restored the normal phenotype. Overproduction and repression of ''Dim/dwf1'' resulted in contrasting phenotypes, with repressors mimicking the ''brd2'' phenotype and overproducers having large stature with increased numbers of flowers and seeds.
-[[File:figure.png|frame|caption]]
+[[File:Figure1.png|right|thumb|320px|'''Figure 1.''' ''Phenotype of the brd2 Mutant'']]
 Recently, we identified a dwarf mutant, brd2,which displays the typical BR-deficient phenotype but also has characteristics not observed in the other mutants.Figure 1A shows the gross morphology of the mutant in an early vegetative stage. At this stage, the mutant plant (right) displays a moderate dwarf phenotype with a height 70% of the wild-type plant (left) but no other obvious abnormalities. However, as development progresses, the phenotype becomes more severe with characteristics typical of BR-related mutants: dark-green, erect leaves and shortened leaf sheaths. After flowering, the height of the plant reaches only 40% of the wild type (Figure 1B). We compared the internode elongation patterns of ''brd2'', the wild type, and other BR-deficient mutants (Figure 1C). In the wild type, the five uppermost internodes elongate; the internodes are numbered from top to bottom such that the uppermost, just below the panicle, is designated as the first internode (Figure 1C).By contrast, the three BR-deficient mutants show different elongation patterns:''d2-1'' has a specific inhibition in the second internode,''brd1-1'' is completely defective in internode elongation, and the first internode of ''brd2'' elongates, but the lower internodes do not (Figure 1C).''d61-2'', which is defective in the rice ''Bri1'' gene, also exhibits dwarfism with a lack of internode elongation except for the first internode.The ''brd2'' mutant flowers and produces malformed panicles, but the numbers of spikelets and rachis branches, as well as fertility, are severely reduced (Figure 1D). The lengths of the first and second rachis branches in the panicle are also severely reduced. In contrast with these severe defects, the neck internode of the mutant is longer than that of the wild type (Figure 1D).This phenomenon is a common feature in rice BR-related mutants because long neck internodes are also observed in ''d2'' and ''d61-1''. In addition, the ''brd2'' mutant also exhibits shortened grains (Figure 1E) and defective root elongation and development (Figure 1F). Although one seminal root develops normally during embryogenesis, after germination the seminal root elongates to only two-thirds of the wild-type root and formation of the crown root is inhibited, but lateral root formation is not as severely affected as crown root formation.

@@ Line 6: / Line 6: @@
 ===Expression===
-Please input expression information here.
+The ''brd2'' mutatant possess a semidwarf phenotype in the vegetative stage,with severe defects in internode elongation and panicle and seed development.Introduction of the wild-type ''Dim/dwf1'' gene into ''brd2'' restored the normal phenotype. Overproduction and repression of ''Dim/dwf1'' resulted in contrasting phenotypes, with repressors mimicking the ''brd2'' phenotype and overproducers having large stature with increased numbers of flowers and seeds.
 ===Evolution===