The visual system of the longest-living vertebrate, the Greenland shark

  1. Lily G. Fogg
  2. Emily Tom
  3. Maxime Policarpo
  4. William Cho
  5. Fangyuan Gao
  6. Doreen Hii
  7. Aaron E. Fawcett
  8. Nicolas Boileau
  9. Amalie Bech-Poulsen
  10. Kirstine F. Steffensen
  11. Cherlyn J. Ng
  12. Peter G. Bushnell
  13. John Fleng Steffensen
  14. Richard Brill
  15. Walter Salzburger
  16. Dorota Skowronska-Krawczyk

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  1. Version published to 10.1038/s41467-025-67429-6
  2. Arcadia Science

    Interesting study with evidence of functional rod-dominant vision on the basis of phototransduction genes present (and comparable optic tectum). I see in figures 1 and 2 there is an intact RPE and wonder if you have higher resolution of the morphology there? Also, I guess I would expect for there to be less disc shedding and RPE phagocytosis if there is a lower demand for chromophore regeneration. Curious about molecular evolution of retinal cycle and phagocytosis genes in the RPE that might show evidence of adaptation in a circumstance without light-dependent circadian cycling but retained functional phototransduction.

  3. Version published to 10.1101/2025.04.10.648203 on bioRxiv