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https://hdl.handle.net/2440/92641
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dc.contributor.author | Cai, Q. | - |
dc.contributor.author | Yuan, Z. | - |
dc.contributor.author | Chen, M. | - |
dc.contributor.author | Yin, C. | - |
dc.contributor.author | Luo, Z. | - |
dc.contributor.author | Zhao, X. | - |
dc.contributor.author | Liang, W. | - |
dc.contributor.author | Hu, J. | - |
dc.contributor.author | Zhang, D. | - |
dc.date.issued | 2014 | - |
dc.identifier.citation | Nature Communications, 2014; 5(1):3476-1-3476-13 | - |
dc.identifier.issn | 2041-1723 | - |
dc.identifier.issn | 2041-1723 | - |
dc.identifier.uri | http://hdl.handle.net/2440/92641 | - |
dc.description | Published 19 March 2014 | - |
dc.description.abstract | The spikelet is the basal unit of inflorescence in grasses, and its formation is crucial for reproductive success and cereal yield. Here, we report a previously unknown role of the plant hormone jasmonic acid (JA) in determining rice (Oryza sativa) spikelet morphogenesis. The extra glume 1 (eg1) and eg2 mutants exhibit altered spikelet morphology with changed floral organ identity and number, as well as defective floral meristem determinacy. We show that EG1 is a plastid-targeted lipase that participates in JA biosynthesis, and EG2/OsJAZ1 is a JA signalling repressor that interacts with a putative JA receptor, OsCOI1b, to trigger OsJAZ1's degradation during spikelet development. OsJAZ1 also interacts with OsMYC2, a transcription factor in the JA signalling pathway, and represses OsMYC2's role in activating OsMADS1, an E-class gene crucial to the spikelet development. This work discovers a key regulatory mechanism of grass spikelet development and suggests that the role of JA in reproduction has diversified during the flowering plant evolution. | - |
dc.description.statementofresponsibility | Qiang Cai, Zheng Yuan, Mingjiao Chen, Changsong Yin, Zhijing Luo, Xiangxiang Zhao, Wanqi Liang, Jianping Hu and Dabing Zhang | - |
dc.language.iso | en | - |
dc.publisher | Nature Publishing Group | - |
dc.rights | © 2014 Macmillan Publishers Limited. All rights reserved. | - |
dc.source.uri | http://dx.doi.org/10.1038/ncomms4476 | - |
dc.subject | Oryza sativa | - |
dc.title | Jasmonic acid regulates spikelet development in rice | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1038/ncomms4476 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Zhang, D. [0000-0003-3181-9812] | - |
Appears in Collections: | Agriculture, Food and Wine publications Aurora harvest 2 |
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