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![Mary Francis Lyon](/sites/default/files/styles/ct_member_people_xl/public/2023-03/Mary_Frances_Lyon.png?itok=30ojgT4d)
Mary Lyon — nominated by David Page
Mary Lyon is a British geneticist whose piercing insights into the regulation of gene expression on the mammalian X chromosome (X inactivation, or Lyonization) launched the field of epigenetics an continues to shape my lab's agenda today. Mary sent my lab's first postdoc to us.
Photo credit: Jane Gitschier (CC BY 2.5)