ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2022
OsMYB103 is essential for tapetum degradation in rice.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed.
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- Mutations in a Leucine-Rich Repeat Receptor-Like Kinase gene result in male sterility and reduction in the number and size of fruit warts in cucumber (Cucumis sativus L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- Identification of the new allele ptc1-2 and analysis of the regulatory role of PTC1 gene in rice anther development.BMC plant biology · 2024Article
- The characteristic analysis of TaTDF1 reveals its function related to male sterility in wheat (Triticum aestivum L.).BMC plant biology · 2024Article
- DGW1, encoding an hnRNP-like RNA binding protein, positively regulates grain size and weight by interacting with GW6 mRNA.Plant biotechnology journal · 2024Article
- bHLH-regulated routes in anther development in rice and Arabidopsis.Genetics and molecular biology · 2024Article
- OsCCRL1 is Essential for Phenylpropanoid Metabolism in Rice Anthers.Rice (New York, N.Y.) · 2023Article
- Integrative Analysis of Transcriptomic and Proteomic Changes Related to Cytoplasmic Male Sterility in Spring Stem Mustard (International journal of molecular sciences · 2022Article
- Defect inFrontiers in plant science · 2022Article
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8 authors.
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Abstract
key messageOsMYB103 positively regulates tapetum degradation, and functions downstream of TDR and upstream of EAT1 and PTC1. The precise regulation of programmed cell death (PCD) of the tapetum is crucial for the development of anthers and pollen in rice. In this study, we isolated and identified a male-sterile mutant of rice, osmyb103, which exhibited delayed tapetum degradation and defective mature pollen. Map-based cloning and genetic complementation revealed that OsMYB103 corresponded to the gene LOC_Os04g39470 and encoded a R2R3 MYB transcription factor. OsMYB103 was localized in the nucleus and was expressed preferentially in the tapetal cells and microspores of the anther. OsMYB103 regulated the expression of two transcription factors, ETERNAL TAPETUM 1 (EAT1) and PERSISTENT TAPETAL CELL 1 (PTC1), both of which regulated tapetum degradation positively. Moreover, the expression of OsMYB103 was directly regulated by the additional positive regulator of tapetum degradation TAPETUM DEGENERATION RETARDATION (TDR) and was able to interact with it. Genetic evidence confirmed that OsMYB103 acted upstream of EAT1. The results show that OsMYB103 is a positive regulator of tapetum degradation in rice. These findings provide a better understanding of the regulatory network that underlies degradation of the tapetum in rice.
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