Friday Squid Blogging: Squid Can Edit Their Own Genomes

Post Syndicated from Bruce Schneier original https://www.schneier.com/blog/archives/2020/05/friday_squid_bl_730.html

This is new news:

Revealing yet another super-power in the skillful squid, scientists have discovered that squid massively edit their own genetic instructions not only within the nucleus of their neurons, but also within the axon — the long, slender neural projections that transmit electrical impulses to other neurons. This is the first time that edits to genetic information have been observed outside of the nucleus of an animal cell.

[…]

The discovery provides another jolt to the central dogma of molecular biology, which states that genetic information is passed faithfully from DNA to messenger RNA to the synthesis of proteins. In 2015, Rosenthal and colleagues discovered that squid “edit” their messenger RNA instructions to an extraordinary degree — orders of magnitude more than humans do — allowing them to fine-tune the type of proteins that will be produced in the nervous system.

As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered.

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