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Transcriptome Analysis Reveals the Involvement of PnMYB26 in Regulating Anther Development in Phyllostachys nigra
Feiyi Huang1,2,3, Yujie Mao3, Jiaxin Wang3
1State Key Laboratory for Development and Utilization of Forest Food Resources, Nanjing Forestry University, Nanjing 210037, China.
Biology
|July 15, 2026
Summary
Understanding bamboo anther development is key for seed production. This study identified key genes, including PnMYB26, involved in regulating anther development and pollen release in Phyllostachys nigra.
Area of Science:
- Plant Biology
- Molecular Genetics
- Transcriptomics
Background:
- Phyllostachys nigra is a valued ornamental plant, but its anther development mechanisms remain unclear.
- Anther development is crucial for plant reproduction and seed formation.
Purpose of the Study:
- To elucidate the regulatory mechanisms governing anther development in Phyllostachys nigra.
- To identify key genes and pathways involved in anther development stages.
Main Methods:
- Comparative transcriptome analysis of P. nigra anthers across four developmental stages.
- KEGG and WGCNA for pathway and gene co-expression network analysis.
- Quantitative PCR (qPCR) for gene expression validation.
Main Results:
- Identified 1528 differentially expressed genes (DEGs) during anther development.
- DEGs are primarily associated with 'cutin, suberine and wax biosynthesis' and 'phenylpropanoid biosynthesis'.
- Discovered 125 differentially expressed transcription factors, with MYB family being most abundant. PnMYB26 was found to potentially regulate NST1, impacting pollen release and fertility in Arabidopsis.
Conclusions:
- Uncovered key molecular pathways and transcription factors regulating P. nigra anther development.
- PnMYB26 plays a potential role in inhibiting pollen release and reducing fertility, offering insights into anther development regulation.
- Provides a foundation for further research into anther development-related genes in P. nigra.
