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Dynamic Alternative Polyadenylation during Litopenaeus Vannamei Metamorphosis Development
Xueqin Yang1,2, Xiuli Chen1,3, Chengzhang Liu4
1China (Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning 530021, China.
Genes
|July 27, 2024
Summary
Alternative polyadenylation (APA) patterns during shrimp (Litopenaeus vannamei) metamorphosis were analyzed. Gradual 3'UTR elongation emerged as a key APA pattern influencing metabolism and development.
Area of Science:
- Molecular Biology
- Developmental Biology
- Genomics
Background:
- Alternative polyadenylation (APA) is crucial for eukaryotic gene expression, impacting cell proliferation and differentiation.
- The specific roles and dynamic patterns of APA during Litopenaeus vannamei metamorphosis remain largely unexplored.
Purpose of the Study:
- To investigate the dynamic patterns of APA during Litopenaeus vannamei metamorphosis.
- To identify key APA events and regulatory networks involved in shrimp development.
Main Methods:
- RNA sequencing was performed across 16 time points from embryo to maturation in Litopenaeus vannamei.
- Differential APA events were identified, and fuzzy mean clustering was used to analyze dynamic patterns.
- mRNA-miRNA and protein-protein interaction (PPI) networks were constructed.
Main Results:
- 247 differentially expressed APA events were identified between early and adult stages.
- Five distinct dynamic APA patterns were discovered, with gradual 3'UTR elongation being the predominant pattern.
- Genes associated with gradual 3'UTR elongation are enriched in protein and energy metabolism pathways.
- Several central microRNAs (miRNAs) potentially regulating shrimp development were identified through network analysis.
Conclusions:
- The study reveals complex APA mechanisms governing Litopenaeus vannamei metamorphosis.
- Findings provide new insights into post-transcriptional regulation during crustacean development.
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