Gene conversion facilitates the adaptive evolution of self-resistance in highly toxic newts

Kerry Gendreau, Joel McGlothlin, Angela Hornsby & Michael Hague
Reconstructing the histories of complex adaptations and identifying the evolutionary mechanisms underlying their origins are two of the primary goals of evolutionary biology. Taricha newts, which contain high concentrations of the deadly toxin tetrodotoxin (TTX) as an antipredator defense, have evolved resistance to self-intoxication, which is a complex adaptation requiring changes in six paralogs of the voltage-gated sodium channel (Nav) gene family, the physiological target of TTX. Here, we reconstruct the origins of TTX self-resistance...
2 citations reported since publication in 2021.
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