PINOID regulates floral organ development by modulating auxin transport and interacts with MADS16 in rice
| Autor: | Hua-Mao Wu, Wei-Cai Yang, Dong-Qiao Shi, Zuo-Shun Tang, Dong-Jiang Xie |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine Mutant floral organ development Flowers Plant Science Biology 01 natural sciences 03 medical and health sciences Gene Expression Regulation Plant Auxin Transcription (biology) PINOID Gene Research Articles Plant Proteins chemistry.chemical_classification MADS16 Oryza sativa Indoleacetic Acids fungi food and beverages Oryza Phenotype Cell biology 030104 developmental biology chemistry Auxin polar transport Mutation Polar auxin transport auxin rice (Oryza sativa L.) Agronomy and Crop Science Research Article 010606 plant biology & botany Biotechnology |
| Zdroj: | Plant Biotechnology Journal |
| ISSN: | 1467-7652 1467-7644 |
| DOI: | 10.1111/pbi.13340 |
| Popis: | Summary In rice (Oryza sativa L.), floral organ development is an important trait. Although a role for PINOID in 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 in OsPINOID (OsPID) gene; therefore, we named the mutation as ospid‐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 of OsPID in regulating floral organ development of rice, especially in stigma development, which would be useful for genetic improvement of high‐yield breeding of rice. |
| Databáze: | OpenAIRE |
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