Revisiting an Old Riddle: What Determines Genetic Diversity Levels within Species?

Abstract

Understanding why some species have more genetic diversity than others is central to the study of ecology and evolution, and carries potentially important implications for conservation biology. Yet not only does this question remain unresolved, it has largely fallen into disregard. With the rapid decrease in sequencing costs, we argue that it is time to revive it. © 2012 Leffler et al.