Gene expression studies of plastic and evolutionary responses to global warming
2022
Swaegers, Janne | Koch, Eva L
Phenotypic plasticity can be a rapid response for coping with global warming, yet may be insufficient to protect species from extinction. Evolutionary adaptation may reinforce adaptive or oppose maladaptive plastic responses. With advances in technology whole transcriptomes can provide us with an unprecedented overview of genes and functional processes underlying the interplay between plasticity and evolution. We advocate that insects provide ideal opportunities to study plasticity in non-adapted and thermally adapted populations to infer reaction norms across the whole transcriptome (‘reactionomes’). This can advance our understanding of how the interplay between plasticity and evolution shapes responses to warming. So far, a limited number of studies suggest predominantly maladaptive plastic responses to novel environments that are reduced with time, but much more research is needed to infer general patterns.
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