翻译(生物学)
芳香
过程(计算)
化学
生物
生物化学
园艺
计算机科学
食品科学
基因
信使核糖核酸
操作系统
作者
Hanxiao Bian,Peizhe Song,Ying Gao,Zhiping Deng,Chenyang Huang,Lei Yu,Hanqing Wang,Bingbing Ye,Zhihe Cai,Yu Pan,Fengqin Wang,Jianzhao Liu,Xiangwei Gao,Kunsong Chen,Guifang Jia,Harry J. Klee,Bo Zhang
标识
DOI:10.1073/pnas.2405100121
摘要
N 6 -methyladenosine (m 6 A) is a fundamentally important RNA modification for gene regulation, whose function is achieved through m 6 A readers. However, whether and how m 6 A readers play regulatory roles during fruit ripening and quality formation remains unclear. Here, we characterized SlYTH2 as a tomato m 6 A reader protein and profiled the binding sites of SlYTH2 at the transcriptome-wide level. SlYTH2 undergoes liquid–liquid phase separation and promotes RNA–protein condensate formation. The target mRNAs of SlYTH2, namely m 6 A-modified SlHPL and SlCCD1B associated with volatile synthesis, are enriched in SlYTH2-induced condensates. Through polysome profiling assays and proteomic analysis, we demonstrate that knockout of SlYTH2 expedites the translation process of SlHPL and SlCCD1B , resulting in augmented production of aroma-associated volatiles. This aroma enrichment significantly increased consumer preferences for CRISPR-edited fruit over wild type. These findings shed light on the underlying mechanisms of m 6 A in plant RNA metabolism and provided a promising strategy to generate fruits that are more attractive to consumers.
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