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Reference Detail
| Reference | ||
|---|---|---|
| Author | Ji,X., Van den Ende,W., Van Laere,A., Cheng,S. and Bennett,J. | |
| Title | Structure, evolution, and expression of the two invertase gene families of rice. | |
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Abstract: Invertases catalyze the irreversible hydrolysis of sucrose to glucose and fructose. Plants contain two unrelated families of these enzymes: acid forms that derive from periplasmic invertases of eubacteria and are found in cell wall and vacuole, and neutral/alkaline forms evolved from the cytosolic invertases of cyanobacteria. Genomes of rice (Oryza sativa) and thale cress (Arabidopsis thaliana) contain multiple genes encoding these two families. Here for rice we identify the member genes of a cell-wall group (designated OsCIN1-9), a vacuolar group (OsVIN1-2), and two ancient neutral/alkaline groups: alpha (OsNIN1-4) and beta (OsNIN5-8). In Arabidopsis these groups contain six, two, four and five members, respectively. It is believed that the vacuolar group evolved from the cell-wall group. We provide evidence that the N-terminal signal peptide that directs cell-wall invertases co-translationally into the endoplasmic reticulum for secretion was replaced in the vacuolar group by a sequence similar to the complex N-terminal motif that targets alkaline phosphatase post-translationally to the vacuolar membrane of yeast. Since the last common ancestor of Arabidopsis and rice, the two invertase families evolved equally rapidly via gene duplication and gene loss, but the acid invertase family underwent approximately 10 events of intron loss compared with a single event of intron gain in the neutral/alkaline invertase family. Transcripts were detected for all rice invertase genes except OsCIN9. The acid invertase genes showed greater spatial and temporal diversity of expression than the neutral/alkaline genes. |
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| Journal | J. Mol. Evol. | |
| Country | the Philippines | |
| Volume | 60(5) | |
| Pages | 615-634 | |
| Year | 2005 | |
| PubMed ID | 15983871 | |
| PubMed Central ID | - | |
| DOI | 10.1007/s00239-004-0242-1 | |
| URL | - | |
| Relation | ||
| Gene | CIN1 CIN3 CIN4 CIN5 CIN6 CIN7 CIN9 GIF1 INV1 NIN1 NIN2 NIN3 NIN4 NIN5 NIN6 NIN7 NIN8 SMS2 _ | |
| INSD | AY575548 AY575549 AY575550 AY575551 AY575552 AY575553 AY575554 AY575555 AY575556 AY575557 AY575558 AY575559 AY575560 AY575561 AY575562 AY575563 AY575564 AY575565 | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
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Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
