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Impact of EFP on translational efficiency of specific amino acid motifs in E. coli using a plasmid-based dual reporter system

ABSTRACT: Impact of EFP on translational efficiency of specific motifs

PROVIDER: PRJEB77738 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR13439956_1.fastq.gz	Fastqsanger.gz
	ERR13439956_2.fastq.gz	Fastqsanger.gz
	ERR13439957_1.fastq.gz	Fastqsanger.gz
	ERR13439957_2.fastq.gz	Fastqsanger.gz
	ERR13439958_1.fastq.gz	Fastqsanger.gz

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Project description:Heterosis, also known as hybrid vigor, has been extensively utilized to increase productivity in crop, yet the underlying molecular mechanisms remain largely elusive. Recent studies have reported that in addition to mRNA transcription, epigenetic variations in DNA methylation, small RNAs and histone modifications also contribute to heterosis. However, the operative mode of post-transcriptional regulation on gene expression such as RNA m6A methylation and translational efficiency in heterosis has never been explored. In this study, we generated transcriptome-wide profiles of mRNA abundance, m6A methylation, and translational efficiency from the maize (Zea mays) F1 hybrid B73×Mo17 and its two parental lines B73 and Mo17 to ascertain contributions of each regulatory layer to heterosis at the seedling stage. We documented that although the global abundance and the distribution configuration of m6A maintained unchanged, a greater number of genes have gained m6A modification in hybrid compared to parent lines. m6A modification and translational efficiency exhibited greater variations between hybrid and parents as compared with observed variation of mRNA abundance. In hybrid, the vast majority of genes with m6A modification exhibited non-additive expression pattern, the percentage of which was exceedingly higher than that of differential genes at mRNA abundance and translation efficiency levels. Non-additive genes involved in different biological processes were hierarchically coordinated by discrete combinations of three regulatory layers. These findings suggest that transcriptional and post-transcriptional regulations on gene expression adopt divergent approaches to participate in the formation of heterosis in hybrid. Overall, the integrated multi-omics analysis provides a valuable portfolio for interpreting transcriptional and post-transcriptional regulation on gene expression in maize hybrid, and pave new avenues for exploring molecular mechanisms underlying hybrid vigor.

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Impact of EFP on translational efficiency of specific amino acid motifs in E. coli using a plasmid-based dual reporter system

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