Biology Ph.D. candidate Jacob Herman and Sonia Sultan, chair and professor of biology, professor of environmental studies, are the co-authors of an article titled “How stable ‘should’ epigenetic modifications be? Insights from adaptive plasticity and bet hedging,” published in Evolution, Issue 68(3), pages 632-43. Herman was the Private Investigator on the paper.
The article also was selected by Faculty 1000, a platform for life scientists that helps scientists to discover, discuss and publish research.
Epigenetics is the study of ways chemical reactions change the way an organism grows and develops, and the factors that influence them. Epigenetic modifications can be stable across the individual’s lifespan and in some species even persist across generations, or they can be reversible, but it is currently unclear how the persistence of epigenetic modifications may evolve. In this paper, Herman and Sultan provide insights from the theoretical advances in adaptive phenotypic plasticity to predict the conditions that would favor the evolution of stable versus reversible epigenetic modification as an adaptive environmental response both within and across generations.