ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2021
The MYB transcription factor Baymax1 plays a critical role in rice male fertility.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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23 citing papers in PubMed, 40 citations in OpenAlex.
- Transcriptome analysis of a spontaneous male-sterile mutant in Betula platyphylla and functional characterization of the key gene BpSPL2 in regulating inflorescence development.Plant cell reports · 2026Article
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- Transcriptome Analysis Reveals Association of E-Class AmMADS-Box Genes with Petal Malformation inInternational journal of molecular sciences · 2025Article
- Research progress on the synergistic regulation of MYB transcription factor-mediated developmental plasticity and stress responses in rice.Frontiers in plant science · 2025Review
- Identification of the new allele ptc1-2 and analysis of the regulatory role of PTC1 gene in rice anther development.BMC plant biology · 2024Article
- Rapid function analysis of OsiWAK1 using a Dual-Luciferase assay in rice.Scientific reports · 2024Article
- Article
- Overexpression of a 'Beta' MYB Factor Gene,International journal of molecular sciences · 2024Article
- bHLH-regulated routes in anther development in rice and Arabidopsis.Genetics and molecular biology · 2024Article
- CRISPR/Cas Technology Revolutionizes Crop Breeding.Plants (Basel, Switzerland) · 2023Review
- OsCCRL1 is Essential for Phenylpropanoid Metabolism in Rice Anthers.Rice (New York, N.Y.) · 2023Article
- Comparative cytological and transcriptome analyses ofFrontiers in plant science · 2023Article
- The ZmMYB84-ZmPKSB regulatory module controls male fertility through modulating anther cuticle-pollen exine trade-off in maize anthers.Plant biotechnology journal · 2022Article
- Cytological Analysis and Fine Mapping of paa1 (Post-meiosis Abnormal Anther 1) Mutant with Abnormal Tapetum and Microspore Development.Biochemical genetics · 2022Article
- Genome-Wide Identification of R2R3-MYB Transcription Factor and Expression Analysis under Abiotic Stress in Rice.Plants (Basel, Switzerland) · 2022Article
- Activating stress memory: eustressors as potential tools for plant breeding.Plant cell reports · 2022Review
- Proteomic and Phosphoproteomic Analyses Reveal a Complex Network Regulating Pollen Abortion and Potential Candidate Proteins in TCMS Wheat.International journal of molecular sciences · 2022Article
- OsFLA1 encodes a fasciclin-like arabinogalactan protein and affects pollen exine development in rice.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
- OsMYB103 is essential for tapetum degradation in rice.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
- Defect inFrontiers in plant science · 2022Article
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13 authors at 2 institutions in 1 country.
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Abstract
Key message Rice male fertility gene Baymax1, isolated through map-based cloning, encodes a MYB transcription factor and is essential for rice tapetum and microspore development.Abstract The mining and characterization of male fertility gene will provide theoretical and material basis for future rice production. In Arabidopsis, the development of male organ (namely anther), usually involves the coordination between MYB (v-myb avian myeloblastosis viral oncogene homolog) and bHLH (basic helix-loop-helix) members. However, the role of MYB proteins in rice anther development remains poorly understood. In this study, we isolated and characterized a male sterile mutant (with normal vegetative growth) of Baymax1 (BM1), which encodes a MYB protein. The bm1 mutant exhibited slightly lagging meiosis, aborted transition of the tapetum to a secretory type, premature tapetal degeneration, and abnormal pollen exine formation, leading to ultimately lacks of visible pollens in the mature white anthers. Map-based cloning, complementation and targeted mutagenesis using CRISPR/Cas9 technology demonstrated that the mutated LOC_Os04g39470 is the causal gene in bm1. BM1 is preferentially expressed in rice anthers from stage 5 to stage 10. Phylogenetic analysis indicated that rice BM1 and its homologs in millet, maize, rape, cabbage, and pigeonpea are evolutionarily conserved. BM1 can physically interacts with bHLH protein TIP2, EAT1, and PHD (plant homeodomain)-finger member TIP3, respectively. Moreover, BM1 affects the expression of several known genes related to tapetum and microspore development. Collectively, our results suggest that BM1 is one of key regulators for rice male fertility and may serve as a potential target for rice male-sterile line breeding and hybrid seed production.
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