Little impact of new mutations on mammalian trait variation

by Beth L. Dumont

New mutations provide the source of all genetic variation but their impact on trait variation remains poorly understood. A new study published in PLOS Biology addresses this question, finding that new mutations exert only weak effects on some traits in mice. New mutations provide the source of all genetic variation but their impact on trait variation remains poorly understood. This Primer explores a new study published in PLOS Biology which addresses this question, finding that new mutations exert only weak effects on some traits in mice.