- Information
- Symbol: OsGPT,OsGPT1
- MSU: LOC_Os08g08840
- RAPdb: Os08g0187800
- Publication
- Cloning and characterization of a glucose 6-phosphate/phosphate translocator fromOryza sativa, 2003, Journal of Zhejiang University SCIENCE A.
- Molecular characterization of a carbon transporter in plastids from heterotrophic tissues: the glucose 6-phosphate/phosphate antiporter, 1998, Plant Cell.
- Sporophytic control of anther development and male fertility by glucose-6-phosphate/phosphate translocator 1 OsGPT1 in rice, 2021, J Genet Genomics.
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Genbank accession number
- Key message
- A cDNA clone encoding glucose 6-phosphate/phosphate translocator (GPT) was isolated from a cDNA library of immature seeds of rice and named as OsGPT
- The OsGPT gene maps on chromosome 8 of rice and is linked to the quantitative trait locus for 1000-grain weight
- Here, we report the functional characterization of OsGPT1 in the rice anther development and pollen fertility
- This report highlights a sporophytic role of OsGPT1 in the tapetum degeneration and pollen development
- The divergent functions of OsGPT1 and AtGPT1 in pollen development might be a result of their independent evolution after monocots and dicots diverged
- Pollen grains from homozygous osgpt1 mutant plants fail to accumulate starch granules, resulting in pollen sterility
- Degeneration of the tapetum, an important process to provide cellular contents to support pollen development, is impeded in osgpt1 plants
- In addition, defective intine and exine are observed in the pollen from osgpt1 plants
- Expression levels of multiple genes that are important to tapetum degeneration or pollen wall formation are significantly decreased in osgpt1 anthers
- OsGPT1 is highly expressed in the tapetal layer of rice anther
- Connection
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