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Azooxanthellate Palythoa (Cnidaria: Anthozoa) genomes reveal toxin-related gene clusters and loss of neuronal genes in hexacorals.
Yoshioka, Yuki; Yamashita, Hiroshi; Uchida, Taiga; Shinzato, Chuya; Kawamitsu, Mayumi; Fourreau, Chloé Julie Loïs; Castelló, Guillermo Mironenko; Fiedler, Britta Katharina; van den Eeckhout, Timotheus Maximilian; Borghi, Stefano; Reimer, James Davis; Shoguchi, Eiichi.
Afiliación
  • Yoshioka Y; Marine Genomics Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa 904-0495, Japan.
  • Yamashita H; Fisheries Technology Institute, Japan Fisheries Research and Education Agency, Ishigaki, Okinawa 907-0451, Japan.
  • Uchida T; Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwanoha, Kashiwa 277-8564, Japan.
  • Shinzato C; Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwanoha, Kashiwa 277-8564, Japan.
  • Kawamitsu M; Sequencing Section, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa 904-0495, Japan.
  • Fourreau CJL; Molecular Invertebrate Systematics and Ecology (MISE) Lab, Graduate School of Engineering and Science, University of the Ryukyus, Nishihara, Okinawa, Japan.
  • Castelló GM; Molecular Invertebrate Systematics and Ecology (MISE) Lab, Graduate School of Engineering and Science, University of the Ryukyus, Nishihara, Okinawa, Japan.
  • Fiedler BK; Molecular Invertebrate Systematics and Ecology (MISE) Lab, Graduate School of Engineering and Science, University of the Ryukyus, Nishihara, Okinawa, Japan.
  • van den Eeckhout TM; Molecular Invertebrate Systematics and Ecology (MISE) Lab, Graduate School of Engineering and Science, University of the Ryukyus, Nishihara, Okinawa, Japan.
  • Borghi S; Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, 1098 XH Amsterdam, The Netherlands.
  • Reimer JD; Molecular Invertebrate Systematics and Ecology (MISE) Lab, Graduate School of Engineering and Science, University of the Ryukyus, Nishihara, Okinawa, Japan.
  • Shoguchi E; Biodiversity and Geosciences Program, Museum of Tropical Queensland, Queensland Museum Network, Townsville, QLD, Australia.
Genome Biol Evol ; 2024 Sep 06.
Article en En | MEDLINE | ID: mdl-39240721
ABSTRACT
Zoantharia is an order among the Hexacorallia (Anthozoa Cnidaria), and includes at least 300 species. Previously reported genomes from scleractinian corals and actiniarian sea anemones have illuminated part of the hexacorallian diversification. However, little is known about zoantharian genomes and the early evolution of hexacorals. To explore genome evolution in this group of hexacorals, here, we report de novo genome assemblies of the zoantharians Palythoa mizigama (Pmiz) and Palythoa umbrosa (Pumb), both of which are members of the family Sphenopidae, and uniquely live in comparatively dark coral reef caves without symbiotic Symbiodiniaceae dinoflagellates. Draft genomes generated from ultra-low input PacBio sequencing totaled 373 Mbp and 319 Mbp for Pmiz and Pumb, respectively. Protein-coding genes were predicted in each genome, totaling 30,394 in Pmiz and 24,800 in Pumb, with each set having ∼93% BUSCO completeness. Comparative genomic analyses identified 3,036 conserved gene families, which were found in all analyzed hexacoral genomes. Some of the genes related to toxins, chitin degradation, and prostaglandin biosynthesis were expanded in these two Palythoa genomes and many of which aligned tandemly. Extensive gene family loss was not detected in the Palythoa lineage and five of ten putatively lost gene families likely had neuronal function, suggesting biased gene loss in Palythoa. In conclusion, our comparative analyses demonstrate evolutionary conservation of gene families in the Palythoa lineage from the common ancestor of hexacorals. Restricted loss of gene families may imply that lost neuronal functions were effective for environmental adaptation in these two Palythoa species.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Genome Biol Evol Asunto de la revista: BIOLOGIA / BIOLOGIA MOLECULAR Año: 2024 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Genome Biol Evol Asunto de la revista: BIOLOGIA / BIOLOGIA MOLECULAR Año: 2024 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Reino Unido