Plant Biotechnology Journal
Abstract
In rice (Oryza sativaL.), floral organ development is an important trait. Although a role forPINOIDin regulating floral organ development was reported recently, the underlying molecular mechanism remains unclear. Here, we isolated and characterized an abnormal floral organ mutant and mapped the causative gene through an improved MutMap method. Molecular study revealed that the observed phenotype is caused by a point mutation inOsPINOID(OsPID) gene; therefore, we named the mutation asospid‐4. Our data demonstrate that OsPID interacts with OsPIN1a and OsPIN1b to regulate polar auxin transport as shown previously. Additionally, OsPID also interacts with OsMADS16 to regulate transcription during floral organ development in rice. Together, we propose a model that OsPID regulates floral organ development by modulating auxin polar transport and interaction with OsMADS16 and/or LAX1 in rice. These results provide a novel insight into the role ofOsPIDin regulating floral organ development of rice, especially in stigma development, which would be useful for genetic improvement of high‐yield breeding of rice.
| 论文编号: | DOI:10.1111/pbi.13340 |
| 论文题目: | PINOID Regulates Floral Organ Development by Modulating Auxin Tansport and Interacts with MADS16 in Rice |
| 英文论文题目: | PINOID Regulates Floral Organ Development by Modulating Auxin Tansport and Interacts with MADS16 in Rice |
| 第一作者: | Huamao Wu, Dongjiang Xie, Zuoshun Tang , Dongqiao Shi , Weicai Yang |
| 英文第一作者: | Huamao Wu, Dongjiang Xie, Zuoshun Tang , Dongqiao Shi , Weicai Yang |
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| 发表年度: | 2020-02-07 |
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| 摘要: | In rice (Oryza sativaL.), floral organ development is an important trait. Although a role forPINOIDin regulating floral organ development was reported recently, the underlying molecular mechanism remains unclear. Here, we isolated and characterized an abnormal floral organ mutant and mapped the causative gene through an improved MutMap method. Molecular study revealed that the observed phenotype is caused by a point mutation inOsPINOID(OsPID) gene; therefore, we named the mutation asospid‐4. Our data demonstrate that OsPID interacts with OsPIN1a and OsPIN1b to regulate polar auxin transport as shown previously. Additionally, OsPID also interacts with OsMADS16 to regulate transcription during floral organ development in rice. Together, we propose a model that OsPID regulates floral organ development by modulating auxin polar transport and interaction with OsMADS16 and/or LAX1 in rice. These results provide a novel insight into the role ofOsPIDin regulating floral organ development of rice, especially in stigma development, which would be useful for genetic improvement of high‐yield breeding of rice. |
| 英文摘要: | In rice (Oryza sativaL.), floral organ development is an important trait. Although a role forPINOIDin regulating floral organ development was reported recently, the underlying molecular mechanism remains unclear. Here, we isolated and characterized an abnormal floral organ mutant and mapped the causative gene through an improved MutMap method. Molecular study revealed that the observed phenotype is caused by a point mutation inOsPINOID(OsPID) gene; therefore, we named the mutation asospid‐4. Our data demonstrate that OsPID interacts with OsPIN1a and OsPIN1b to regulate polar auxin transport as shown previously. Additionally, OsPID also interacts with OsMADS16 to regulate transcription during floral organ development in rice. Together, we propose a model that OsPID regulates floral organ development by modulating auxin polar transport and interaction with OsMADS16 and/or LAX1 in rice. These results provide a novel insight into the role ofOsPIDin regulating floral organ development of rice, especially in stigma development, which would be useful for genetic improvement of high‐yield breeding of rice. |
| 刊物名称: | Plant Biotechnology Journal |
| 英文刊物名称: | Plant Biotechnology Journal |
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| 其它备注: | Huamao Wu, Dongjiang Xie, Zuoshun Tang , Dongqiao Shi , Weicai Yang. PINOID Regulates Floral Organ Development by Modulating Auxin Tansport and Interacts with MADS16 in Rice. Plant Biotechnology Journal. DOI:10.1111/pbi.13340 |
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