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Communication Dans Un Congrès Année : 2021

High-quality genome assemblies of corals highlight the specifics of their long lifespan

Didier Zoccola

Résumé

During the last decade, several coral genomes have been sequenced allowing a better understanding of these symbiotic organisms threatened by climate change. Scleractinian corals have an important ecological role and are an essential element of the reefs, which shelter a great diversity of species. Here we generated two coral genomes, Porites lobata and Pocillopora meandrina with unprecedented contiguity that allowed us to study the functional organization of these genomes. We annotated their gene catalogue and reported a relatively higher gene number than that found in other corals. This finding is explained by a high number of tandemly duplicated genes, which are generally difficult to assemble and annotate, especially using short-read technologies. These duplicated genes, which originate from multiple and distinct events in the coral lineage, belong to gene-families linked to the immune system and disease-resistance which we suggest to be a functional consequence of their long lifespan.
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Dates et versions

hal-04440766 , version 1 (06-02-2024)

Identifiants

  • HAL Id : hal-04440766 , version 1

Citer

France Denoeud, Benjamin Noel, Julie Poulain, Carol Bruitago, Quentin Carradec, et al.. High-quality genome assemblies of corals highlight the specifics of their long lifespan. EAGS, France Génomique, Oct 2021, Tours (France), France. ⟨hal-04440766⟩
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