Publications by authors named "Camille Thomas-Bulle"
Article Synopsis
- - The size of extreme structures in nature, like beetle horns, is limited by a mechanical tradeoff: as horn length increases, horn strength decreases, leading to a "paradox of the weakening combatant."
- - In many species, males with longer horns are also stronger because natural selection has led to evolutionary changes that help counteract the strength loss associated with longer weapons.
- - By studying rhinoceros beetles' evolutionary history, researchers found that increases in horn length were linked to decreased lifting strength, which were later compensated for by either shorter horns or increased head height in some populations.
Article Synopsis
- The study investigates the evolution of deep-sea hydrothermal vent worms, specifically the Pompeii worm (Alvinella pompejana) and its sister species (A. caudata), focusing on how geographic isolation and habitat preference drive speciation in these extreme environments.
- Researchers analyzed genomic data to identify patterns of divergence in these species, comparing populations at different stages of speciation to understand which genes are involved in their separation and adaptation.
- Findings revealed that while early-stage divergent genes are scattered across the genome without clear separation, late-stage genomes of A. pompejana and A. caudata show high divergence, indicating a more advanced stage of speciation and less potential for interbreeding.
Article Synopsis
- The study explores the diversity of transposable elements (TEs) in polychaetes by analyzing transcriptomes from 15 species, using high throughput sequencing for more comprehensive data.
- Researchers found significant variability in TE distribution across different clades, including new small clades within the BEL/Pao superfamily, and highlighted the dominance of Gypsy elements among LTR-retrotransposons.
- The findings suggest that transcriptomes, derived from extensive sequencing, can effectively reveal TE diversity and contribute to understanding genomic evolution influenced by TE mobility in metazoans.
Background: The three superfamilies of Long Terminal Repeat (LTR) retrotransposons are a widespread kind of transposable element and a major factor in eukaryotic genome evolution. In metazoans, recent studies suggested that Copia LTR-retrotransposons display specific dynamic compared to the more abundant and diverse Gypsy elements. Indeed, Copia elements show a relative scarcity and the prevalence of only a few clades in specific hosts.
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