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Photoreceptor Diversification Accompanies the Evolution of Anthozoa

Gornik, Sebastian G.; Bergheim, Bruno Gideon; Benoit, Morel; Stamatakis, Alexandros 1; Foulkes, Nicholas S. 2; Guse, Annika
1 Institut für Theoretische Informatik (ITI), Karlsruher Institut für Technologie (KIT)
2 Institut für Biologische und Chemische Systeme (IBCS), Karlsruher Institut für Technologie (KIT)

Anthozoan corals are an ecologically important group of cnidarians, which power the productivity of reef ecosystems. They are sessile, inhabit shallow, tropical oceans and are highly dependent on sun- and moonlight to regulate sexual reproduction, phototaxis, and photosymbiosis. However, their exposure to high levels of sunlight also imposes an increased risk of UV-induced DNA damage. How have these challenging photic environments influenced photoreceptor evolution and function in these animals? To address this question, we initially screened the cnidarian photoreceptor repertoire for Anthozoa-specific signatures by a broad-scale evolutionary analysis. We compared transcriptomic data of more than 36 cnidarian species and revealed a more diverse photoreceptor repertoire in the anthozoan subphylum than in the subphylum Medusozoa. We classified the three principle opsin classes into distinct subtypes and showed that Anthozoa retained all three classes, which diversified into at least six subtypes. In contrast, in Medusozoa, only one class with a single subtype persists. Similarly, in Anthozoa, we documented three photolyase classes and two cryptochrome (CRY) classes, whereas CRYs are entirely absent in Medusozoa. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000135094
Veröffentlicht am 07.07.2021
DOI: 10.1093/molbev/msaa304
Zitationen: 5
Web of Science
Zitationen: 3
Zitationen: 6
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Theoretische Informatik (ITI)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 05.2021
Sprache Englisch
Identifikator ISSN: 1537-1719
KITopen-ID: 1000135094
Erschienen in Molecular biology and evolution
Verlag Oxford University Press (OUP)
Band 38
Heft 5
Seiten 1744–1760
Vorab online veröffentlicht am 23.11.2020
Schlagwörter Cnidaria, Aiptasia, cryptochromes, opsins, photolyases, phylogenetics
Nachgewiesen in Dimensions
Web of Science
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