Soojin Yi studies evolutionary biology using comparative genomic and epigenomic methods. She’s curious how epigenetic regulatory mechanisms evolve and how they contribute to biological phenomena. For example, she has been investigating how DNA methylation evolves and affects the regulation of phenotypic plasticity. A major thrust of her research is the evolution of epigenetic regulation that underlies traits of the human brain such as cognition, neuropsychiatric disorder and plasticity.