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- W3171868856 abstract "Cold stress is a serious threat to subtropical crop pollen development and induces yield decline. N6-methyladenosine (m 6 A) is the most frequent mRNA modification and plays multiple physiological functions in plant development. However, whether m 6 A regulates pollen development is unclear, and its putative role in cold stress response remains unknown. Here, we observed that moderate low-temperature (MLT) stress induced pollen abortion in tomato. This phenotype was caused by disruption of tapetum development and pollen exine formation, accompanied by reduced m 6 A levels in tomato anther. Analysis of m 6 A-seq data revealed 1,805 transcripts displayed reduced m 6 A levels and 978 transcripts showed elevated m 6 A levels in MLT-stressed anthers compared with those in anthers under normal temperature. These differentially m 6 A enriched transcripts under MLT stress were mainly related to lipid metabolism, adenosine triphosphatase (ATPase) activity, and ATP-binding pathways. An ATP-binding transcript, SlABCG31 , had significantly upregulated m 6 A modification levels, which was inversely correlated to the dramatically downregulated expression level. These changes correlated with higher abscisic acid (ABA) levels in anthers and disrupted pollen wall formation under low-temperature stress. Our findings characterized m 6 A as a novel layer of complexity in gene expression regulation and established a molecular link between m 6 A methylation and tomato anther development under low-temperature conditions." @default.
- W3171868856 created "2021-06-22" @default.
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- W3171868856 date "2021-06-04" @default.
- W3171868856 modified "2023-10-04" @default.
- W3171868856 title "RNA N6-Methyladenosine Responds to Low-Temperature Stress in Tomato Anthers" @default.
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- W3171868856 doi "https://doi.org/10.3389/fpls.2021.687826" @default.
- W3171868856 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8213351" @default.
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- W3171868856 hasPublicationYear "2021" @default.
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