Revival of Philozoon Geddes for host-specialized dinoflagellates, ‘zooxanthellae’, in animals from coastal temperate zones of northern and southern hemispheres
| Autor: | Joerg Wiedenmann, Matthew R. Nitschke, Carlos A. Spano, Isabella D’Ambra, Simon K. Davy, Todd C. LaJeunesse, Pilar Casado-Amezúa, V.M. Cubillos, David J. Suggett, Clinton A. Oakley, Kira E. Turnham, Stefano Goffredo |
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| Přispěvatelé: | LaJeunesse T. C.*, Wiedenmann J., Casado-Amezúa P., D’Ambra I., Turnham K. E., Nitschke M. R., Oakley C. A., Goffredo S., Spano C. A., Cubillos V. M., Davy S. K., Suggett D. J. |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
biology Ecology 010604 marine biology & hydrobiology Lineage (evolution) 0607 Plant Biology Adaptive radiation ecological specialization Mediterranean Sea Symbiodiniaceae temperate zone zooxanthellae Dinoflagellate Plant Science Aquatic Science Sea anemone biology.organism_classification 010603 evolutionary biology 01 natural sciences Marine Biology & Hydrobiology Symbiodinium Mediterranean sea Genus Zooxanthellae Adaptive radiation 14. Life underwater |
| Zdroj: | European Journal of Phycology. 57:166-180 |
| ISSN: | 1469-4433 0967-0262 |
| Popis: | The dinoflagellate family Symbiodiniaceae comprises numerous genera and species with large differences in diversity, ecology and geographic distribution. An evolutionarily divergent lineage common in temperate symbiotic cnidarians and designated in the literature by several informal names including ‘temperate–A’, AI, Phylotype A´ (A-prime) and ‘Mediterranean A’, is here assigned to the genus Philozoon. This genus was proposed by Geddes (1882) in one of the earliest papers that recognized ‘yellow cells’ as distinct biological entities separate from their animal and protist hosts. Using phylogenetic data from nuclear (rDNA), chloroplast (cp23S) and mitochondrial genes (cob and cox1), as well as morphology (cell size), ecological traits (host affinity) and geographic distributions, we emend the genus Philozoon Geddes and two of its species, P. medusarum and P. actiniarum, and describe six new species. Each symbiont species exhibits high host fidelity for particular species of sea anemone, soft coral, stony coral and a rhizostome jellyfish. Philozoon is most closely related to Symbiodinium (formerly Clade A), but, unlike its tropical counterpart, occurs in hosts in shallow temperate marine habitats in northern and southern hemispheres including the Mediterranean Sea, north-eastern Atlantic Ocean, eastern Australia, New Zealand and Chile. The existence of a species-diverse lineage adapted to cnidarian hosts living in high latitude habitats with inherently wide fluctuations in temperature calls further attention to the ecological and biogeographic reach of the Symbiodiniaceae. |
| Databáze: | OpenAIRE |
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