Abundance and Diversification of Repetitive Elements in Decapoda Genomes

• DOI: 10.20944/preprints202307.0580.v1
• Publication Date: 2023-07-11T01:09:01Z
• Authors: Christelle Rutz; Arnaud Kress; Ljudevit Luka Boš...; Lena Bonassin; Caterina Francesconi; Dorine Merlat; Kathrin Theissinger; Odile Lecompte
• Keywords: Repeated sequence; Genome size; Comparative Genomics

Repetitive elements are a major component of DNA sequences due to their ability propagate through the genome. Characterization Metazoan repetitive profiles is picking up, however, current pipelines failing identify significant proportion divergent repeats in non-model organisms. The order Decapoda, for which repeat content analyses largely lacking, characterized by extremely variable genome sizes that suggest an important presence elements. Here we developed new standardized pipeline annotate organisms, applied on 20 Decapoda and 6 other crustacean genomes. With our tool 10% more than standard pipelines. were abundant species crustaceans, with incredibly large number highly repeated satDNA families. Moreover, demonstrated high correlation between assembly size transposable different dynamics Dendrobranchiata Reptantia. patterns reflect phylogenetic relationships distinct evolutionary trajectories within Crustacea. In summary, results highlight impact evolution value novel annotation pipeline, will provide baseline future comparative analyses.