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It is widely accepted that stressful conditions can facilitate evolutionary change. The mechanisms elucidated thus far accomplish this with a generic increase in heritable variation that facilitates more rapid adaptive evolution, often via plastic modifications of existing characters. Through scrutiny of different meanings of stress in biological research, and an explicit recognition that stressors...
Understanding the evolutionary role of environmentally induced phenotypic variation (i.e., plasticity) is an important issue in developmental evolution. A major physiological response to environmental change is cellular stress, which is counteracted by generic stress reactions detoxifying the cell. A model, stress‐induced evolutionary innovation (SIEI), whereby ancestral stress reactions and their...
One of the important unanswered questions in evolutionary biology is how evolutionary innovations originate. Recent advances in evolutionary developmental biology and genomics have put the developmental, mechanistic aspects of evolutionary change into the hands of evolutionary biologists and we now have the means to acquire an experimentally grounded understanding of this important phenomenon. In...
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