The DOI matches its Crossref record; 46 of the 46 references it cites were found in a registry or an index.
Rice zinc finger protein DST enhances grain production through controlling Gn1a/OsCKX2 expression
Open accessAbstract
The phytohormone cytokinin (CK) positively regulates the activity and function of the shoot apical meristem (SAM), which is a major parameter determining seed production. The rice ( Oryza sativa L.) Gn1a / OsCKX2 ( Grain number 1a / Cytokinin oxidase 2 ) gene, which encodes a cytokinin oxidase, has been identified as a major quantitative trait locus contributing to grain number improvement in rice breeding practice. However, the molecular mechanism of how the expression of OsCKX2 is regulated in planta remains elusive. Here, we report that the zinc finger transcription factor DROUGHT AND SALT TOLERANCE (DST) directly regulates OsCKX2 expression in the reproductive meristem. DST-directed expression of OsCKX2 regulates CK accumulation in the SAM and, therefore, controls the number of the reproductive organs. We identify that DST reg1 , a semidominant allele of the DST gene, perturbs DST-directed regulation of OsCKX2 expression and elevates CK levels in the reproductive SAM, leading to increased meristem activity, enhanced panicle branching, and a consequent increase of grain number. Importantly, the DST reg1 allele provides an approach to pyramid the Gn1a -dependent and Gn1a -independent effects on grain production. Our study reveals that, as a unique regulator of reproductive meristem activity, DST may be explored to facilitate the genetic enhancement of grain production in rice and other small grain cereals.
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Cites
A Draft Sequence of the Rice Genome ( Oryza sativa L. ssp. indica )
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Self-citationCytokinin Oxidase Regulates Rice Grain Production
Ashikari, M., Sakakibara, H., Lin, S., Yamamoto, T., Takashi, T., Nishimura, A., Angeles, E. R., Qian, Q., Kitano, H., & Matsuoka, M. (2005) · Science · doi:10.1126/science.1113373 · Cited by 1,905
Self-citationA draft sequence of the rice genome (Oryza sativa L. ssp. indica) : The rice genome
Yu, J. M., Hu, S., Cao, M., Liu, J., Sun, J., & Tang, J. (2002) · Science · Cited by 1,817
Self-citationRegulation of OsSPL14 by OsmiR156 defines ideal plant architecture in rice
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OsSPL14 promotes panicle branching and higher grain productivity in rice
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Natural variation at the DEP1 locus enhances grain yield in rice
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NINJA connects the co-repressor TOPLESS to jasmonate signalling
Pauwels, L., Barbero, G. F., Geerinck, J., Tilleman, S., Grunewald, W., Pérez, A. C., Chico, J. M., Bossche, R. V., Sewell, J., Gil, E., et al. (2010) · Nature · doi:10.1038/nature08854 · Cited by 1,018
Cited by
Genetic Regulation of Shoot Architecture
Wang, B., Smith, S. M., & Li, J. (2018) · Annual Review of Plant Biology · doi:10.1146/annurev-arplant-042817-040422 · Cited by 760
Self-citationYang, W., Guo, Z., Huang, C., Duan, L., Chen, G., Jiang, N., Fang, W., Feng, H., Xie, W., Lian, X., et al. (2014) · Nature Communications · doi:10.1038/ncomms6087 · Cited by 598
Molecular Genetic Dissection of Quantitative Trait Loci Regulating Rice Grain Size
Zuo, J., & Li, J. (2014) · Annual Review of Genetics · doi:10.1146/annurev-genet-120213-092138 · Cited by 448
Metadata
- Authors
- Li, S., Zhao, B., Yuan, D., Duan, M., Qian, Q., Tang, L., Wang, B., Liu, X., Zhang, J., Wang, J., Sun, J., Liu, Z., Feng, Y.-Q., Yuan, L., & Li, C.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2013-02-04
- Volume
- 110
- Issue
- 8
- Pages
- 3167-3172
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2117910139
- Cited by
- 310
- References
- 46
- FWCI
- 19.82
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Li, S., Zhao, B., Yuan, D., Duan, M., Qian, Q., Tang, L., Wang, B., Liu, X., Zhang, J., Wang, J., Sun, J., Liu, Z., Feng, Y.-Q., Yuan, L., & Li, C. (2013). Rice zinc finger protein DST enhances grain production through controlling Gn1a/OsCKX2 expression. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1300359110
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