It is possible for a genetic change to bounce back when selection is relaxed?

Coltman DW. 2008. Evolutionary rebound from selective harvesting. Trends in Ecology and Evolution 23: 117-118. doi:10.1016/j.tree.2007.12.002

A harvested Lake population of pikes showed a genetic change towards early maturation and reduced growth rate. After a relaxation in selection pressure the population seems to being able to revert the adaptive change in a short period of time. The results of this work indicated that natural selection and fishery selection often acted in opposite directions within this natural system. More information can be found here.

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