Difference between revisions of "Os02g0244100"
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showed that GFP was strongly expressed in roots | showed that GFP was strongly expressed in roots | ||
, leaves, and floral organs including stamens, pistils and hulls. | , leaves, and floral organs including stamens, pistils and hulls. | ||
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| + | GW2 increases grain size and yield in rice, which is a new RING-type protein with intrinsic E3 ubiquitin ligase activity that localizes to the cytoplasm and is constitutively expressed in various tissues. Reduced expression of GW2 increases grain size (mainly grain width), resulting in enhanced grain weight, whereas overexpression decreases grain size and weight. The naturally occurring WY3 allele of GW2, which encodes a truncated version of the protein with a 310–amino acid deletion, increases the number of cells of the spikelet hull, resulting in a wider spikelet hull, and subsequently accelerates the grain milk filling rate, resulting in increased grain width, weight and yield. | ||
===Evolution=== | ===Evolution=== | ||
Revision as of 15:45, 23 May 2014
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Contents
Annotated Information
Function
This gene is reported as GW2, a new QTL that controls rice grain width and weight. GW2 encodes a previously unknown RING-type protein with E3 ubiquitin ligase activity, which is known to function in the degradation by the ubiquitin-proteasome pathway. Loss of GW2 function increased cell numbers, resulting in a larger (wider) spikelet hull, and it accelerated the grain milk filling rate, resulting in enhanced grain width, weight and yield. GW2 negatively regulates cell division by targeting its substrate(s) to proteasomes for regulated proteolysis. The functional characterization of GW2 provides insight into the mechanism of seed development and is a potential tool for improving grain yield in crops.
Expression
Transient expression in onion epidermal cells showed that GFP-GW2 localized to the cytoplasm.RT-PCR data in both FAZ1 and NIL(GW2) showed that GW2 mRNA was expressed constitutively in shoots and roots of seedlings, inflorescent meristems, young flowers, leaves and spikelet hulls and endosperms 4 d after fertilization.The GW2 promoter–GFP expression analysis showed that GFP was strongly expressed in roots , leaves, and floral organs including stamens, pistils and hulls.
GW2 increases grain size and yield in rice, which is a new RING-type protein with intrinsic E3 ubiquitin ligase activity that localizes to the cytoplasm and is constitutively expressed in various tissues. Reduced expression of GW2 increases grain size (mainly grain width), resulting in enhanced grain weight, whereas overexpression decreases grain size and weight. The naturally occurring WY3 allele of GW2, which encodes a truncated version of the protein with a 310–amino acid deletion, increases the number of cells of the spikelet hull, resulting in a wider spikelet hull, and subsequently accelerates the grain milk filling rate, resulting in increased grain width, weight and yield.
Evolution
The rice GW2 gene has two co-orthologs located on duplicated chromosomes in maize. Both genes consist of eight exons, with an overall sequence similarity of 94% to each other and 93% to the rice GW2 gene across the coding region. They were named ZmGW2-CHR4 and ZmGW2-CHR5.
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Labs working on this gene
1National Key Laboratory of Plant Molecular Genetics, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institute for Biological Sciences, The Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China.
References
- ↑ 1.0 1.1 Song, X. J., Huang, W., Shi, M., Zhu, M. Z., & Lin, H. X. (2007). A QTL for rice grain width and weight encodes a previously unknown RING-type E3 ubiquitin ligase. Nature genetics, 39(5), 623-630.
- ↑ Li, Q., Li, L., Yang, X., Warburton, M.L., Bai, G., Dai, J., Li, J., and Yan, J. (2010). Relationship, evolutionary fate and function of two maize co-orthologs of rice GW2 associated with kernel size and weight. BMC Plant Biol 10, 143.
Structured Information
| Gene Name |
Os02g0244100 |
|---|---|
| Description |
Zinc finger, RING-type domain containing protein |
| Version |
NM_001052949.1 GI:115445268 GeneID:4328856 |
| Length |
6429 bp |
| Definition |
Oryza sativa Japonica Group Os02g0244100, 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 | |
| Location |
Chromosome 2:8144222..8150650 |
| Sequence Coding Region |
8144506..8144706,8145995..8146046,8146132..8146177,8146270..8146351,8146430..8146592 |
| Expression | |
| Genome Context |
<gbrowseImage1> name=NC_008395:8144222..8150650 source=RiceChromosome02 preset=GeneLocation </gbrowseImage1> |
| Gene Structure |
<gbrowseImage2> name=NC_008395:8144222..8150650 source=RiceChromosome02 preset=GeneLocation </gbrowseImage2> |
| Coding Sequence |
<cdnaseq>atggggaacaggataggggggaggaggaaggcgggggtggaggagaggtacacgaggccgcaggggctgtacgagcacagggacatcgaccagaagaagctccggaagctgatcctcgaggccaagctcgcgccgtgctacatgggcgccgacgacgccgccgccgccgccgacctcgaggagtgccccatctgcttcctgtactacccaagtcttaaccgatcaaagtgttgctcaaaagggatatgcaccgagtgctttctccaaatgaaaccaactcacactgctcagcctacacaatgtccattctgcaaaactcccagttatgctgtggagtatcgtggtgtaaagacaaaggaggaaaggagcatagaacaatttgaagagcagaaagtcatagaagcacaaatgaggatgcgccagcaagcacttcaagatgaagaagataagatgaaaagaaaacagaacaggtgctcttctagcagaacaatcacaccgaccaaagaagtggagtatagagatatttgcagcacatccttttcagtgccgtcataccgatgtgctgagcaagaaactgaatgctgttcatcggaaccttcatgctctgcccagactagcatgcgccctttccattctaggcataaccgtgatgataacattgacatgaatatagaggatatgatggttatggaagcgatttggcgttccattcagggaagtatagggaatcctgtctgtggcaactttatgcctgtaactgagccatctccgcgtgaacgccagccattcgttccagctgcttctctagaaatacctcatggtggtggattttcctgtgcggttgcggcaatggctgagcaccagccacccagtatggacttctcttacatggctggcagcagcgcattcccagttttcgacatgttccggcgaccatgcaacattgctggtggaagcatgtgtaatctggagagctcaccggagagctggagcgggatagcaccaagctgcagcagggaagtggtaagagaagaaggagagtgctcggctgaccactggtcggagggtgcagaggccggaacaagctacgcgggctcagacatcgtggcagatgccgggaccatgccgcagctgcctttcgccgagaacttcgccatggcgccaagccacttccgcccggagagcatcgaagaacagatgatgttttccatggctctttctttagcagatggtcatggaagaacacactcgcaagggttggcatggttgtag</cdnaseq> |
| Protein Sequence |
<aaseq>MGNRIGGRRKAGVEERYTRPQGLYEHRDIDQKKLRKLILEAKLA PCYMGADDAAAAADLEECPICFLYYPSLNRSKCCSKGICTECFLQMKPTHTAQPTQCP FCKTPSYAVEYRGVKTKEERSIEQFEEQKVIEAQMRMRQQALQDEEDKMKRKQNRCSS SRTITPTKEVEYRDICSTSFSVPSYRCAEQETECCSSEPSCSAQTSMRPFHSRHNRDD NIDMNIEDMMVMEAIWRSIQGSIGNPVCGNFMPVTEPSPRERQPFVPAASLEIPHGGG FSCAVAAMAEHQPPSMDFSYMAGSSAFPVFDMFRRPCNIAGGSMCNLESSPESWSGIA PSCSREVVREEGECSADHWSEGAEAGTSYAGSDIVADAGTMPQLPFAENFAMAPSHFR PESIEEQMMFSMALSLADGHGRTHSQGLAWL</aaseq> |
| Gene Sequence |
<dnaseqindica>285..485#1774..1825#1911..1956#2049..2130#2209..2371#2464..2566#4263..4329#5608..6165#gcagcagagaggtctccacttccctttcctcccaccccgagaaagccaaaaaaagaaaaattatttttcaaaaaaaaagctcgcctcgccctcgcgtcgtcgtccccatcaccccccctcctccgctccgagtacgcgtgcgtataccaccacctccatctccaccaccgtatgtatctacggtgaggcggcggcggcggaggaggaggaggagggggagtggtgagggtttcatctgcggaggaggagggaggaggagggaggagggtagatctgggagggggatggggaacaggataggggggaggaggaaggcgggggtggaggagaggtacacgaggccgcaggggctgtacgagcacagggacatcgaccagaagaagctccggaagctgatcctcgaggccaagctcgcgccgtgctacatgggcgccgacgacgccgccgccgccgccgacctcgaggagtgccccatctgcttcctggtataaaaccgcctccggggagatgtggcgggtggacgggaggaagagatctctcccctcttcctcacttcctcctcccgcttccttccacttcagctttttctctctttttttttggtgggattttgtcgtaatgctactactagtacttgttgttgcgagagtagggcgtggattgcgtgtggccgggtggtggcgtggagcgtttcgattagggggttgattacttttgctcctgttcgattgtggagagtgccggtggtgtgtggccgttatggagatggatgaccacgcgcagtgttttggggcaagaatttcagtcgacattggcacggttttggggttgtttgtattgttcttggataattagtgcggttcgtggagctgattttgcgaaatgtagtagtagtgtttgaattatttctggtagttagtagtggtatcatacttcgtatgtacattgtccgcaatgttctcctaaattgttttgttttcttaatcatagtttacttacttttattatgtaattctgagatacgtttttttgggataattatagtctaggaggttttgggtactcatttattattgtcaatattctataggcctatctattggctgcctggctgtgatgcattgcatgaaatttaatgtttactgccactcccggggttgggacattacagaccttataggaaatttgactagtttcataaatgaataattggccaactgttctgcaatgttgggtgccttcaatttctaatagtggatgctctatagagtacggaggtaccatggtgatatttgtttgttgtgtgtaatactttatttttggtgtattaatgctcttgggaaccgagattgagaatctattgtagtgaacttgattctgttagctgtgccagagtattttcgatgtctcttgtcaagcctgcatttatttggcacaaagtagattttttaaaaaaaaattctgcagctttaatgctactagcttactgcaattaatgttattactatataggaattttaatgcaattctatatggttgcaattttattgcaattctgcttcattagatctttagctcaaaatcactcaataaatttggttttagatgaaatcatgaaacttgtattataggagtatattatatttggtgttgaattatatgtttgcatttgtgctaatagtggtatttaacaattatcacttctggtatttctgagttcaaactgtttgacaaccactcctgtcctgaaatgcatgttttctttctttgtagtactacccaagtcttaaccgatcaaagtgttgctcaaaagggatatgcaccggtaatacatctatcctataactaacaattgtgttttacttgttaggaccatatacccttatattcaatggttggtttttttgcagagtgctttctccaaatgaaaccaactcacactgctcagcctacacagtatcctttgtgtcacccttgattatattttgtaaccttggcagttggcaatctatattcctttttatgaaaaaaatacttaaccaataaagatgtccattctgcaaaactcccagttatgctgtggagtatcgtggtgtaaagacaaaggaggaaaggagcatagaacaatttgtaagtaatttatattctgatgttttttttttgttttgccaaatgcatttcatttatctcacataatatgtgttacaggaagagcagaaagtcatagaagcacaaatgaggatgcgccagcaagcacttcaagatgaagaagataagatgaaaagaaaacagaacaggtgctcttctagcagaacaatcacaccgaccaaagaagtggagtatagagatatttgcagcacatccttttcaggtctgcacaggctgcaactaacatagaaatttagtaatgtaccatttcttctgcttgatgtggtaatttactatgtgttatgtctgtttcagtgccgtcataccgatgtgctgagcaagaaactgaatgctgttcatcggaaccttcatgctctgcccagactagcatgcgccctttccattctaggcataaccggtatgttattatctttttctctgagttttagggtgtcattgtagcctggttatgttgaactgcaaaccttactacacttctatgttaaataccctacctcaaccatgttgaagggaagcaaatgagaagtattgttaaaataggataaaggaaagtaacagtattatctatagaatcaaatcgataacaaagatcaaccgttggattaaattggatagtggggaccagacaccataaaacactggcatttcggacaagatcatttaattattccactttaagcttgtgcagtctgtcctgatccactgcactatttaagtggatgagaagctgtgattggagttactgttctagtgttaaggttgacttgtatcagatacaattgcctatccagtgacaaagtttgaatgtttaatttgtgaaagtgtgaatggagagaatttctgcccacatcattgttgtaccatgatagttacagtaatctttagtttatctatactctagagggataaaaacaccaaaacagtttgatcaaaattgttcgaggtaaatcctaagtataaaattgagaatggatttgtttttcaatatggttatttgttatcgacattcagtgtttttatttcacacaatggccaattccgaaaaaacaatctgggttctttttatcccactgtccataccaagttgatgtagcaagtaactactacacaaaatagtatattgtagccctttacatgcatccaatagattaagtggtcttcaatccaaggatgaaataagcaataacgtaggttccgataccaaattagcacaaaacaatgctaaatgcttttagaggaagtaaaccactcatttggttcttttacctataaacttgtgttcgcttgatgttctcaatattgtcaggctattttatagacttgaggagtaaacatttcttgatgacgttatcttctcctattgtgctagacataaaatacagtgtagcataacttgtgtactgtgagtttttttcaagtttttcttgatgctgcacaatagtatacaacaatcgtctattcagtcacacatggcacatcctcacatcaaacagaagttactttttatgatgttaatgtgtagtataacagcagaagctaaacggtagagggatacaggatactcgagtcaatatgaagttggggttccatggagtatttgaatcgaataaaacatcttgatgatcaatattggttttcatattgtttctataagctagtttcatatttttctagagaacctattattattttgcttcctgtcctcctcagaagattgacattctgtactggtagtgaatttgtgtttccctcataccctgtttgggagggtttcaacgtcagcttagtgcagtgctgcaaagtttaaactctatgaccagagcataagtatggcttaaggacttctgatgacaaagccatttttgaaacctgaagcctattttgatcaacttatgaacttatatggaaaaccagtttctgaaagaggccaaatatcaataaatggtgccttaatctcccttcagttttatagtttaccatatggatatttttcctgtactaagtgtttcttgcttgctggtcatgataatcctttatgctgttgagatgaaaatggtttctaaaattatgaaactgtgtgtttccccttacagtgatgataacattgacatgaatatagaggatatgatggttatggaagcgatttggcgttccattcaggttagtagttttctcactggtccttacatgagattattgataatatgcatatggcatactgtggataatattataaaagctgatttgttgggtcaggtaatggtttgtaaatgagctgcacaaaaatagattgttatttgcattgaacatgaaagtttgctaatctcctggcatgcttgttgaattcagagcattttgcgagttctgataaatgcaagatctagtctgcacaagcagaacctgtattgttaagtgttcaataataaaaaaaaatgtcaattaaattgttgagaagtgtattggcgatagtggataatgtaggatatgtttggtttgagggaccaacatcagttagttcatcattgcctcattcctcaggcacatgctagtggaaaaatgagtaatgcagtattcatgccaaaatcatcctagatggtgtgattcctcaaacaaaacaggccagtagatgatggggttggtaagataagttatctttttgtcattttacttgagcagtactgcgcttggcacaaaaatatttctggtcattttgtgagaacaagaggacttt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