Os07g0505200

The rice Os07g0505200 was reported as OsSPL13. OsSPL13 belongs to the SQUAMOSA PROMOTER BINDING PROTEIN (SBP) family of transcription factors.

Annotated Information

Function

• OsSPL13 gene locates on the a major quantitative trait locus, GLW7, and encodes the plant-specific transcription factor OsSPL13, positively regulates cell size in the grain hull, resulting in enhanced rice grain length and yield.
• A tandem-repeat sequence in the 5′ UTR of OsSPL13 alters its expression by affecting transcription and translation and that high expression of OsSPL13 is associated with large grains in tropical japonica rice.

Mutation

• Scientists carried out RNA interference (RNAi) to suppress the expression of OsSPL13 in the small-grain japonica variety Dongjing and the large-grain japonica variety GP579. The corresponding transgenic plants showed significantly decreased 1,000-grain weight, grain length and grain thickness when compared with the wild-type plants. No changes were detected in grain width (Fig. 3a,b,d,e). Control plants with pTCK303 did not show any differences in grain shape for the transgenic plants.

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Figure 1. lala .

Expression Pattern

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Evolution

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Labs working on this gene

• National Center for Gene Research, Chinese Academy of Sciences Center for Excellence of Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.
• State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China.
• Crop Biotech Institute, Kyung Hee University, Yongin, Republic of Korea. Correspondence should be addressed to B.H.

References

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