April 2013 Cover Image

Cover image

Cover image expansion

Cover photo: Image represents the breakup and rearrangement of chromosomes over generations overlayed on population migration, conveying the central concept of Loh et al. (pp. 1233–1254). The people in the image represent the chromosomes; the first generation is shown in areas of origin (people all one color), which mix as they migrate. Image courtesy of Steven Lee, www.graphiko.com.