Testing for population differences in evolutionary responses to pesticide pollution in brown trout (Salmo trutta).

ABSTRACT: Pesticides are often toxic to nontarget organisms, especially to those living in rivers that drain agricultural land. The brown trout (Salmo trutta) is a keystone species in many such rivers, and natural populations have hence been chronically exposed to pesticides over multiple generations. The introduction of pesticides decades ago could have induced evolutionary responses within these populations. Such a response would be predicted to reduce the toxicity over time but also deplete any additive genetic variance for the tolerance to the pesticides. If so, populations are now expected to differ in their susceptibility and in the variance for the tolerance depending on the pesticides they have been exposed to. We sampled breeders from seven natural populations that differ in their ha

SUBMITTER: Nusbaumer D 

PROVIDER: S-EPMC7896705 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature