Distribution of Small RNAs Along Transposable Elements in Vitis vinifera During Somatic Embryogenesis

Area of Science:

• * Virology
• * Bioinformatics
• * Molecular Biology

Background:

• * Metaviridae are reverse-transcribing viruses, related to retroviruses, integrating into host DNA as transposable elements.
• * Studying transposable elements is challenging due to their repetitive nature, necessitating specialized bioinformatics tools.

Purpose of the Study:

• * To establish a bioinformatics flowchart for assembling and identifying transposable elements.
• * To leverage multi-omics data for enhanced transposable element analysis.

Main Methods:

• * Integration of transcript RNA-Seq, small RNA-Seq, and parallel analysis of RNA ends-Seq data.
• * Development of a bioinformatics pipeline specifically designed for repetitive element analysis.
• * Application of the flowchart to grapevine somatic embryo data.

Main Results:

• * A functional bioinformatics flowchart was successfully established.
• * The flowchart demonstrated capability in assembling and identifying transposable elements.
• * Combined sequencing data proved effective for transposable element characterization.

Conclusions:

• * The developed bioinformatics flowchart offers a robust method for transposable element identification.
• * This approach is valuable for studying viral elements within host genomes.
• * The methodology can be applied to other plant species or complex genomic studies.