Pervasive tandem duplications and convergent evolution shape coral genomes - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Access content directly
Journal Articles Genome Biology Year : 2023

Pervasive tandem duplications and convergent evolution shape coral genomes

Benjamin Noel
France Denoeud
Alice Rouan
Carol Buitrago-López
Laura Capasso
  • Function : Author
Julie Poulain
Emilie Boissin
Mélanie Pousse
  • Function : Author
Corinne da Silva
Arnaud Couloux
  • Function : Author
Eric Armstrong
Quentin Carradec
Corinne Cruaud
Karine Labadie
Julie Lê-Hoang
  • Function : Author
Sylvie Tambutté
  • Function : Author
Valérie Barbe
  • Function : Author
Clémentine Moulin
Guillaume Bourdin
  • Function : Author
Guillaume Iwankow
  • Function : Author
Sarah Romac
  • Function : Author
Sylvain Agostini
Bernard Banaigs
Emmanuel Boss
Chris Bowler
Colomban de Vargas
J. Michel Flores
Didier Forcioli
Paola Furla
Stéphane Pesant
Stéphanie Reynaud
Matthew B Sullivan
Shinichi Sunagawa
Olivier P Thomas
Romain Troublé
  • Function : Author
Rebecca Vega Thurber
Denis Allemand
Serge Planes
Eric Gilson
Didier Zoccola
Patrick Wincker
Christian R Voolstra
Jean-Marc Aury


Background: Over the last decade, several coral genomes have been sequenced allowing a better understanding of these symbiotic organisms threatened by climate change. Scleractinian corals are reef builders and are central to coral reef ecosystems, providing habitat to a great diversity of species. Results: In the frame of the Tara Pacific expedition, we assemble two coral genomes, Porites lobata and Pocillopora cf. effusa, with vastly improved contiguity that allows us to study the functional organization of these genomes. We annotate their gene catalog and report a relatively higher gene number than that found in other public coral genome sequences, 43,000 and 32,000 genes, respectively. This finding is explained by a high number of tandemly duplicated genes, accounting for almost a third of the predicted genes. We show that these duplicated genes originate from multiple and distinct duplication events throughout the coral lineage. They contribute to the amplification of gene families, mostly related to the immune system and disease resistance, which we suggest to be functionally linked to coral host resilience. Conclusions: At large, we show the importance of duplicated genes to inform the biology of reef-building corals and provide novel avenues to understand and screen for differences in stress resilience. † Benjamin Noel and France Denoeud have equal contribution.
Fichier principal
Vignette du fichier
s13059-023-02960-7.pdf (5.81 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive

Dates and versions

hal-04117388 , version 1 (05-06-2023)



Benjamin Noel, France Denoeud, Alice Rouan, Carol Buitrago-López, Laura Capasso, et al.. Pervasive tandem duplications and convergent evolution shape coral genomes. Genome Biology, 2023, 24 (1), pp.123. ⟨10.1186/s13059-023-02960-7⟩. ⟨hal-04117388⟩
16 View
1 Download



Gmail Facebook Twitter LinkedIn More