Octopuses edit their RNA to adapt to fluctuating temperatures, from the warm waters of summer to chilly ocean temperatures in winter.
As the seasons change, octopuses rewire their brains to adapt to fluctuating ocean temperatures, a new study finds.
They expected to see changes in the RNA at only a few sites. Instead, they discovered changes at more than 20,000 of the 60,000 sites they looked at. And these RNA edits started happening within a matter of hours after the octopuses were exposed to new temperatures, the researchers found. They found evidence confirming that temperature-driven changes in the RNA translated into structural changes in kinesin and synaptotagmin — and that these changes would also affect the proteins' function, likely in a way that makes the octopuses better adapted to the chilly or warm waters they are operating in.
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