Homoplasy
Gain or loss of the same feature independently in separate lineages during evolution / From Wikipedia, the free encyclopedia
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Homoplasy, in biology and phylogenetics, is the term used to describe a feature that has been gained or lost independently in separate lineages over the course of evolution. This is different from homology, which is the term used to characterize the similarity of features that can be parsimoniously explained by common ancestry.[1] Homoplasy can arise from both similar selection pressures acting on adapting species, and the effects of genetic drift.[2][3]
Most often, homoplasy is viewed as a similarity in morphological characters. However, homoplasy may also appear in other character types, such as similarity in the genetic sequence,[4][5] life cycle types[6] or even behavioral traits.[7][5]