Genomic Repeat: Nodding our Tusks to Heroic Mutations

This episode was originally released on August 2, 2022

Just like any good superhero comic, we start this episode with the science going incredibly wrong. Think: vats of toxic waste producing evil mutants that ravage the city. Or maybe not so evil. It really depends on your perspective. Just like the X-men, genetic mutations get a bad rap in the public eye. But they aren’t all nasty.

Dr. Kaylee Byers speaks with data scientist and evolutionary biologist Dr. Brian Arnold on how the genetic ‘mistakes’ known as variants occasionally encode incredible abilities. Odd elephants, hiding in our ocean depths, and Rogue-ish bacteria are just a few examples. Dr. Arnold defends these genetic anomalies, and explains how they can make a huge difference to the future of humanity and life on this planet. Also joining us is marine biologist Dr. Maria Pia Miglietta, who shares an incredible ability sitting in our ocean depths. Immortality.

So strap on your capes, because we’re heading straight into the strange terrain of “heroic mutations.”

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Resources:

Genetic Mutation - NatureGenomic mutation rates: What high-throughput methods can tell usShane Campbell Staton Group - Tuskless ElephantsIvory poaching and the rapid evolution of tusklessness in African elephants - ScienceReal-Life X-Men: How CRISPR Could Give You Superpowers in the Future - synthego.comIndonesian divers have evolved bigger spleens to hunt underwater - ScienceMutations may reveal how Tibetans can live on world's highest plateau - ScienceThe Immortal Jellyfish - American Museum of Natural HistoryCellular reprogramming and immortality: Expression profiling reveals putative genes involved in Turritopsis dohrnii’s life cycle reversalTranscriptome Characterization of Reverse Development in Turritopsis dohrnii (Hydrozoa, Cnidaria)Horizontal gene transfer and adaptive evolution in bacteria - nature reviews microbiologyHorizontal gene transfer overrides mutation in Escherichia coli colonizing the mammalian gut - PNASThe Ship of Theseus Dilemma - Open Okstate