What is canalization in terms of epigenetic theory?

Canalization in epigenetic theory refers to the process by which certain traits or phenotypes become robust against environmental variations, leading to a consistent expression despite differing conditions. This phenomenon occurs through epigenetic mechanisms that regulate gene expression, allowing organisms to maintain stability in development and function. Essentially, canalization emphasizes the role of both genetic and environmental factors in shaping phenotypic outcomes while ensuring resilience against perturbations.