Os02g0682200

The rice Os02g0682200 has been reported as MADS6 or MFO1 more than four times since the year 2009. As a member of MADS-box gene family, MADS6 draws attention of plant molecular biologists for its special functions in the regulation of rice flowers development.

Annotated Information

Figure 1. osmads6 mutant VS. WT( from reference ).

Function

OsMADS6, the AGL6-like gene in rice, plays an essential role in specifying floral organ, meristem identities and endosperm nutrient accumulation in rice. It is also an important epigenetic regulator in rice. The study by Shinnosuke Ohmori et al. in 2009 showed that the loss of OsMADS6 function in rice resulted in aberrant floral morphology. The study by Dabing Zhanga et al. in 2011 further explained how OsMADS6 worked with MADS3, MADS16, MADS13 and MADS58 et al. and showed that MADS6 is a key player in specifying flower development via interacting with other floral homeotic genes in rice.

GO assignment(s): GO:0003700, GO:0005634, GO:0043565

Wild Type VS. Mutant

• In the research reported by Dabing Zhang et al. in 2010, a osmads6 mutant line with flower morphological defects was isolated from Japonica subspecies 9522 background treated with 60-Co γ-ray (280 Gy). No significant differences were observed when comparing the vegetative development stages, flowering time or inflorescene morphology of Wild type and the osmads6 mutant (Figure 1A and 1B).
  

• However, when comparing the morphology of flower organs, a defection of floral development could be found in osmads6 mutant. The spikelets of osmads6-1 at stage In9 showed somewhat larger palea than wild type (Figure 1C and 1D). The wellinterlocked lemma/palea structure was destroyed in the osmads6-1 mutant flower because of the altered marginal tissue (Figure 1F). Ectopic indeterminate glume-like structures enclosed the stamen filament in osmads6-1 mutant flowers (Figure 1G).
  
  

Figure 2. mfo1-1 mutant VS. WT (from reference).

• In the research reproted by Shinnosuke Ohmori et al. in 2009, another MADS6 mutant mfo1-1 was described. There is also no obvious abnormalities between mfo1-1 and wild type in the vegetative stage, however, abnormal flower morphological was observed in mfo1-1. A slightly enlarged palea and were half open was found in the florets of mfo1-1 (Figure 2A and 2B).
  

• Compared with wild type, Mfo1-1 is in defect of interlocking between the lemma and palea (Figure 2C and 2D). The mfo1-1 palea also lacked the membranous marginal region of palea which is found in wild type and its surface is relatively rougher then that of the wild-type lemma (Figures 2E and 2F).

Evolution

• The phylogenetic analyses made by Dabing Zhang et al. OsMADS6 belonged to an ancient and conserved AGL6 family. Both gymnosperms and angiosperms shared one common ancestor of AGL6-like genes. And the AGL6-like genes from grasses form two paralogous clades: the OsMADS17-clade contains OsMADS17 gene with an ortholog from Sorghum and the other genes, namely, OsMADS6-clades .

Labs working on this gene

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References

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Structured Information

Gene Name	Os02g0682200
Description	Similar to MADS box protein
Version	NM_001054284.1 GI:115447938 GeneID:4330328
Length	7968 bp
Definition	Oryza sativa Japonica Group Os02g0682200, complete gene.
Source	Oryza sativa Japonica Group ORGANISM Oryza sativa Japonica Group Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta; Spermatophyta; Magnoliophyta; Liliopsida; Poales; Poaceae; BEP clade; Ehrhartoideae; Oryzeae; Oryza.
Chromosome	Chromosome 2
Location	Chromosome 2:28762840..28770807
Sequence Coding Region	28762972..28763153,28765912..28765990,28767927..28767988,28768220..28768319,28769648..28769689 ,28769999..28770040,28770138..28770283,28770460..28770559
Expression	GEO Profiles:Os02g0682200
Genome Context	<gbrowseImage1> name=NC_008395:28762840..28770807 source=RiceChromosome02 preset=GeneLocation </gbrowseImage1>
Gene Structure	<gbrowseImage2> name=NC_008395:28762840..28770807 source=RiceChromosome02 preset=GeneLocation </gbrowseImage2>
Coding Sequence	<cdnaseq>atggggaggggaagagttgagctgaagcgcatcgagaacaagatcaacaggcaggtcaccttctccaagcgccgcaacggcctcctcaagaaggcctacgagctgtccgttctctgcgacgccgaggtcgcgctcatcatcttctccagccgcggcaagctctacgagttcggcagcgccggcataacaaagactttagaaaggtaccaacattgttgctacaatgctcaagattccaacaatgcactttctgaaacccagagttggtaccatgaaatgtcaaagttgaaagcaaaatttgaagctttgcagcgcactcaaaggcacttgcttggggaggatcttggaccactcagcgtcaaagaattgcagcagctggagaaacagcttgaatgtgcactatcacaggcgagacagagaaagacgcaactgatgatggaacaagtggaggaacttcgcagaaaggagcgtcagctgggtgaaattaataggcaactcaagcacaagctcgaggttgaaggttccaccagcaactacagagccatgcagcaagcctcctgggctcagggcgccgtggtggagaatggcgccgcatacgtgcagccgccgccacactccgcggccatggactctgaacccaccttgcaaattgggtatcctcatcaatttgtgcctgctgaagcaaacactattcagaggagcactgcccctgcaggtgcagagaacaacttcatgctgggatgggttctttga</cdnaseq>
Protein Sequence	<aaseq>MGRGRVELKRIENKINRQVTFSKRRNGLLKKAYELSVLCDAEVA LIIFSSRGKLYEFGSAGITKTLERYQHCCYNAQDSNNALSETQSWYHEMSKLKAKFEA LQRTQRHLLGEDLGPLSVKELQQLEKQLECALSQARQRKTQLMMEQVEELRRKERQLG EINRQLKHKLEVEGSTSNYRAMQQASWAQGAVVENGAAYVQPPPHSAAMDSEPTLQIG YPHQFVPAEANTIQRSTAPAGAENNFMLGWVL</aaseq>
Gene Sequence	<dnaseqindica>133..314#3073..3151#5088..5149#5381..5480#6809..6850#7160..7201#7299..7444#7621..7720#atattctcgtcatcattggaggctttagcaagcaagaagagaggcagtggtggtggtggtggaggaggagctagctagcctgtgcttgctgatcggtgctgagctgaggaatcgttcgatcgatcgggcgagatggggaggggaagagttgagctgaagcgcatcgagaacaagatcaacaggcaggtcaccttctccaagcgccgcaacggcctcctcaagaaggcctacgagctgtccgttctctgcgacgccgaggtcgcgctcatcatcttctccagccgcggcaagctctacgagttcggcagcgccgggtataattaatacagacacaacaacacacacaaccaacaaaccagcatcaatttgaacctgcagatctgctgttttctctgatcaattgcttctttttttttgttcttttttgtttcttttatctgctgcaacggcgtcctgctcctctggggtttctcgttttctttttcatttatttttagcaggtgccaagtagccgagctactatacttacctggccatgttaattattttattccgtctgtctgtgtgtgtctgtgcatactactatagggacatggcgcggtgttcttataaaccgggaggccggatccctaactagcatgggaggatatcttttcagcggatctatacaaaccctactcctgctgacctctttcttccagtttctccgggtcttccttggattattattgcccatcttccgggttgtgcgtgtgtcagagacagctcgaacgataaatttctcaaaaccagtactagagagggtgtgttgtgtgtgagaactgagtggagagttagcatgaaggctgcaaactagaaaggaaggtatgttctttcctttttgatccatcaggggagccccttctggtattaagatctttccggcacattgattttcatactttgtgatgaccctggaagaatcggcgtagcagcgtagcaccgctccattttggtcttaccctcacctccccatgctatgaactgatcaatttcattgttcttcatcacccttctcctagctttccacttccttcggatctcatgccatgtttctcagcatgaatcaaatttaattcgtgttttctacttccatatatactggaagaaatttaattagatctatttttgctcgggaggtcttcatactttgagttctgatgccatcaccttatttcccccccccccttctcttgttctatcttcttcctcatcttggcttgatcattttgatctgtcagttatagcatgatgcattctcaatttgactgtatgtaagttcaaccggaaatatgttgaatggattttctatatatcaacacttgatgtcaggcctgcatctgtttcgcttgtggtggtgtggccaaaattgtctatatttgatctttgctcttctttctcctcatttcatgacgattcctactacggcttaaaccattctttattctttactaatcatggatgttgcttgactcctagttgtttcgtactagctcaacttggagatcttttcattatttgcctagttggtgggtacgtttgtgacagatctaaaatggtgcacgaaaagttttacttattatgaaaaaagggagcttaacagggtaatttctctatttattcgtgatgacattttttccttgataagggggattttttataatctgcactcacatgtttatatgtaaaatctagctcttttgttttgtttttggcatatttcccgctaagtatagagtttatgtggataacattataacttttcaagatccaatccacatctttgattgtgaaaatcatacaatagggaaaatcaactgaagggttaattagatgctatatgcatatatatatatatgtgcgcgcgcgcgcgcctgaatttaactatgtatgcatccaactgtttcattgaaaaagatttgatatttttcagtctattctttttcgagtatatatttaatatgtttcaatctgttttgaccattataagataaagcctatattcaccaggcatttgagatgatcttttcatgcatgaaaaagctgttgttatcacttcaactaaccagacgatctaacatgtatttgtataagaaacagaccttgatttccttctgtaaaatcatgcatgtgttcgttttgaattggagtcggcgcgcctgtgttttgaccgtcaggaaagtcttttttttccctgaatagtcaagggtctatacttcttgaagcaattgggacactaatcaattattgtttatacctcggaccatcttttccttcttcacaccactaatcagtttatgccttggaccattaattgtgttgttcacaagcttcttgtttatggtttacaaagcattcgcctagatttgtgtgtgtctctacacatcgatcacttttaaatacttgtcgctttcagttattcttttaacgtttggttatttatcttatttaaaaaaattatcgtattattatttattttgtttgtgatttactttattatcaaaagtatttcaaatatgacttatctttttttataagtgcactaatttttcaaataagatgaatggtcaaatgttacaagaaaaagttaaagcaaccactaatttagggcggaggtagtaaaacctagttattgtaaccaataattttatcaatctataaatgcaacacaaagtcacttcgtgatatctcacacaaagccacttcaacgatgaaagctgactgcatgttttatcaaaacacatgtgatcagtttgttggatgaaaaaaattatctatgtcataaatcaagagttataatataagcttctggctctacaagtaacatttctatgttttttttttacgttcttacatactatgttttgccaaaaaaaacatgatcattttgttggacgaaaagaaatagtaaatatagagtgacctttgatatcattataatataagcttctgcctctataaataacatctatgcactttttacgtcgtagtaatttgatatatgagaaatttacatataacatttttgtgcagcataacaaagactttagaaaggtaccaacattgttgctacaatgctcaagattccaacaatgcactttctgaaacccaggtatatatatctgcatgaactggtcatgaatttctgctgttggttttggtttcaaaatgggtcttgtttttttactatatatatttttgtatgaatatgcaattatcaatgtcctgacattgaaattagctacagtataaacctagctaggtattttcatcgtattgtgagattacattcaataaaaagtacacagattagcataactgtgttaatttgatgatgtatcccaaagctaatttgcagtgacttaaaatattttacttgacacagctactaaatcggatgttcttttcgtaaaagcattctaaagaatggcaaagtttagaagaattaaactagtagaatttcaacaccggcatgcattaaccatattttatgtaataaatgaagtttttattgacatgtcaaaggaggacaacaaagacaatcccttcttcctatatagttggtacccactacaagcattaacactataaagaagcatccaggttaagccacatcatcgataatcaatagccgtcggatcaaatgcatctttgtttgtttaactgtgcatgccttaagtaaggaaactgccatgggtaattaggcacatcaatggatgacccacttaagtgctcctggtcatgcattacatgcatcccccatattaagccactgctatatcccttaaccatctaccactcaaatgccaactttacactttattattttagaatgtttacttttgatatttcaattcttcaattctgtttgtaagcacatatttacaaagttgtttatcatcaccataaaatcccgtagcaacgcgcggggtatcaaactagttgtttgttataattataccatattacaatgcaagatcgtgctgtttacggcgtatatgtattcagaaatgttgcacctagtataggtttttaccagcatagaatatacaaatagctagtctaaatgactttttgtgcccctagctccctagtgtaaccttacatgaagtattccctgcatcgaatatgaagtatatattccctgcatcgacgaatatacaaatatactcctagctaggctaaaatacagccaccagtatgaagtaaattagtcgatgtagttcaatatttaaatatagatggtgattgaatgtacaacaatagtgcacatcccaaaaaaataagggtgtacctctgtgaccagatagtactccctcagtcagggtacgtccagattcattggactaggatatgtcacatccagtactagggccctgtttagattccaatttttttttcaaacttttaacttttccgtcacatcgaactttcctacatacaaacttccaacttttccgtcacatcgttccaatatcttcaaacttccaattttggcgtggaactaaacacagcctaggttggtttttcgtgggacggagggagtactctttatggtgattctaaatttcagtcaatcaattagagtacgtcctcataacatttcaaacaaaaacatagatgcccttgtgcataatttcaaaagtcatgagatcaaattgaaattcttgagaacttaccaaccgcaaaatatctaaggagttatgtcacttggttatatttatatcattgacatcctgcaacttatttgcccaataatcagtatatatagtttgctagctgtatcattaatagcatgtttcacaaaattttaaaaaaagaataagcccaacgtatatgtacaaggaggccatgtgacatatttagttaaaattcacaaacgacttttatcaagtgtttaaagaaaccgcagaaagttaatttgctctgtgtaacactaatattcagtgtatgattcgccaaacacacagttccttagtcgttagaactagctgataaatatttttgtgaactgaactaatggtttttcttttcctctgatcctgaagagttggtaccatgaaatgtcaaagttgaaagcaaaatttgaagctttgcagcgcactcaaaggtatttcactatgatctctccaagaagcataactcctgcaaatacacaatatatttttctataacatgcatgcaagtgataatgttgtgttaagggaaagagggaagaagcagcccataacgtgcatttacacacattattctgtaatatagctgctgcgaaactttatgtgtcatgcaatttaccttaatatttacattatgctctttgggttttgcttgattcttaaaggcacttgcttggggaggatcttggaccactcagcgtcaaagaattgcagcagctggagaaacagcttgaatgtgcactatcacaggcgagacagagaaaggtttatggcattctgcagtcctttgtttggaaccaaaatacttctgtttctagcctaccctggttcgcttgttatttgtccactgatttggatataggtgcaatacgtgagaagcaataaaatatacagtatgtctttagtttgtaggtaaagttatatatatttataaatagacaggaggtgtacgctagctatggaatatccccttgctaaagtttatataaagagcacctaactaatttgtttttgttcatggaagtgaacataataactgggaatgcttatcctacattatctaaagagaattgcataaaattgtttcaatctctagctaatgcatggtggtggtttggtagaaagccaagacatatttcacttagaatattgataccttattttatggtaaaggtcaactgatgatatttttaaagaagtgtgaaagctactatgcagcataagtaatccctttgtttcataaatttgccctaagtcattatctttaaccatcaatttctggaaatttgtgtagtttaacaaaatgtgaactgtacattctgtaaggatttttcatgttgtgtatctaacaacataacccttgtggtgttaaactatagtatcatttttttagaaactaatggtcaaaaatatatataagtgtttgaattaggacaaacgtagaatgacaagtaatttgaagcaactgggcgtagcatgtatcttgataaattcaccctattctaggcacgaaggtgatgcatacagtggcactaaatttcatataaaagactatctaagtatagaatagaaatatagaatggctagcacgcatgccctttttctttatatggatacatgtgtagtgacagggccgagcaactgcaacattaatctaaactgtcaatttcagatatactactacttatggctgcttgtttaggctaattaataattatatgtttactcttttcaaaataaaacacttcaaagctgcatgacaatcccgtcaacaaggatagtaatgacaatgagtagctgatgaaataatatggcttcaattctggagtttcaggaaaatttagctgctaaaaaaagaataagtgaataacccaaagaaaatagaactttgaaggatagaggtagagagattaaatatacactagtattcattttgtggtgcgtcgtacatgcttcaaaatctcccaaggaccataaaagatcccaagaaatagctaggtagaacacatgaaagttcagaaactggatataatctacacttcattatattactgtcaactcaatatgactgtgcttgaatggtttttgtgcagacgcaactgatgatggaacaagtggaggaacttcgcagaaaggtacattatcaatccaaagtttctcaagcatacatacagtatcagcattgccatgggcgggtgacttcaggagtgctagctactagtgataatctaaattaaaccacgaaatgacttggctagctttgacaatgcatctatattgccagcaaggctgctagggtataccgcatgcaagttaattagggtagatcgtgtagcctttgactgtataactaaagaaatggtagcttcgttcttgcgagagatttctttcatgagagttgttacatattatactatctccaatatatttttcttgtgccacaggagcgtcagctgggtgaaattaataggcaactcaagcacaaggttcttattcactcggaaatctgttatgccaatgcggtgcacatataattatttattgataattttcattcatatattctcatatccaatgctgcagctcgaggttgaaggttccaccagcaactacagagccatgcagcaagcctcctgggctcagggcgccgtggtggagaatggcgccgcatacgtgcagccgccgccacactccgcggccatggactctgaacccaccttgcaaattgggtaagattaatcaagaaaagccaagaccagaaatgcatatacttataacttctagctcaaatgcatacagctcgatcacagcatccgaactagtagaactaatgaaagattctcatcaaactgactgtgtatatcttgcttccattatattatctgaaaaacgattatgttactaggtatcctcatcaatttgtgcctgctgaagcaaacactattcagaggagcactgcccctgcaggtgcagagaacaacttcatgctgggatgggttctttgagctaagcagccatcgatcagctgtcagaagttggagctaataataaaagggatgtggagtgggctacatgtatctcggatctctctgcgagccacctaatggtcttgcgtggccctttaatctgtatgtttttgtgtgtaagctactgctagctgtttgcaccttctgcgtccgtggttgtgtttccgtgctacctttttatgttttgatttggatcttgtttgaaaataatcttaccagctttgggt</dnaseqindica>
External Link(s)	NCBI Gene:Os02g0682200, RefSeq:Os02g0682200