Turritopsis dohrnii is the only known species of jellyfish able to repeatedly revert into a larval stage after sexual reproduction. Read more at straitstimes.com.
CHICAGO - Scientists in Spain have unlocked the genetic code of the immortal jellyfish - a creature capable of repeatedly reverting into a juvenile state - in hopes of unearthing the secret to their unique longevity, and find new clues to human ageing.
Like other types of jellyfish, the T. dohrnii goes through a two-part life cycle, living on the sea floor during an asexual phase, where its chief role is to stay alive during times of food scarcity.Although many types of jellyfish have some capacity to reverse ageing and revert to a larval stage, most lose this ability once they reach sexual maturity, the authors wrote. Not so for T. dohrnii.
This trick earned the species its nickname as the immortal jellyfish, a term Graham admits is a bit hyperbolic. What they found is that T. dohrnii has variations in its genome that may make it better at copying and repairing DNA.
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