Toxin-adapted fish pass down epigenetic mutations
jstewardYou can take a fish out of toxic water, but its epigenetic mutations will remain for at least two generations.
A research team led by Washington State University scientists analyzed the epigenetics—molecular factors and processes that determine whether genes are turned on or off—of a group of Poecilia mexicana fish, or Atlantic molly, that live in springs naturally high in hydrogen sulfide, which is normally toxic to most organisms. » More …