Reference - Detail
| RRC ID | 47779 |
|---|---|
| Author | She KC, Kusano H, Koizumi K, Yamakawa H, Hakata M, Imamura T, Fukuda M, Naito N, Tsurumaki Y, Yaeshima M, Tsuge T, Matsumoto K, Kudoh M, Itoh E, Kikuchi S, Kishimoto N, Yazaki J, Ando T, Yano M, Aoyama T, Sasaki T, Satoh H, Shimada H. |
| Title | A novel factor FLOURY ENDOSPERM2 is involved in regulation of rice grain size and starch quality. |
| Journal | Plant Cell |
| Abstract |
Rice (Oryza sativa) endosperm accumulates a massive amount of storage starch and storage proteins during seed development. However, little is known about the regulatory system involved in the production of storage substances. The rice flo2 mutation resulted in reduced grain size and starch quality. Map-based cloning identified FLOURY ENDOSPERM2 (FLO2), a member of a novel gene family conserved in plants, as the gene responsible for the rice flo2 mutation. FLO2 harbors a tetratricopeptide repeat motif, considered to mediate a protein-protein interactions. FLO2 was abundantly expressed in developing seeds coincident with production of storage starch and protein, as well as in leaves, while abundant expression of its homologs was observed only in leaves. The flo2 mutation decreased expression of genes involved in production of storage starch and storage proteins in the endosperm. Differences between cultivars in their responsiveness of FLO2 expression during high-temperature stress indicated that FLO2 may be involved in heat tolerance during seed development. Overexpression of FLO2 enlarged the size of grains significantly. These results suggest that FLO2 plays a pivotal regulatory role in rice grain size and starch quality by affecting storage substance accumulation in the endosperm. |
| Volume | 22(10) |
| Pages | 3280-94 |
| Published | 2010-10-1 |
| DOI | 10.1105/tpc.109.070821 |
| PII | tpc.109.070821 |
| PMID | 20889913 |
| PMC | PMC2990130 |
| MeSH | Amylopectin / analysis Amylose / analysis Chromosome Mapping Cloning, Molecular DNA, Plant / genetics Endosperm / growth & development* Gene Expression Regulation, Plant Genetic Complementation Test Glucans / analysis Hot Temperature Molecular Sequence Data Mutation Oryza / genetics* Oryza / metabolism Phylogeny Plants, Genetically Modified / genetics Plants, Genetically Modified / metabolism Seed Storage Proteins / genetics Seed Storage Proteins / metabolism* Starch / analysis* |
| IF | 9.618 |
| Times Cited | 127 |
| WOS Category | PLANT SCIENCES BIOCHEMISTRY & MOLECULAR BIOLOGY CELL BIOLOGY |
| Altmetric score |
オルトメトリクス指標項目
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| The most frequently cited source | Patent(IFI CLAIMS) |
| Total number of mentions | 2 |
| Altmetric score changes over past 6months | 0.0 |
| Resource | |
| Rice | Induced mutation line |