As ancient humans spread across the globe from their evolutionary birthplace in Africa, they tended to lose a little genetic diversity at each step along...


A vast number of species depend on sexual reproduction for survival. Sex facilitates adaptation and rids populations of deleterious mutations. Despite the benefits of this...


Mark Blaxter (Institute of Evolutionary Biology, University of Edinburgh) reports on the “Caenorhabditis Genomes Project” workshop at GSA’s recent 20th International C. elegans Meeting. Caenorhabditis elegans,...


The sticky fruit of the date palm has a tangled history. New research in G3 explores the palm’s genetic diversity and traces its earliest cultivation...


Bdelloid rotifers have been veiled in mystery for decades. Despite extensive studies of this class of tiny freshwater invertebrates, no one has observed any trace...


By the time President Obama announced the Precision Medicine Initiative in January 2015, the Genetic Epidemiology Research on Adult Health and Aging (GERA) cohort was...


The most diverse of all human genes encode a set of proteins at the frontline of our immune system. Many different Human Leukocyte Antigen (HLA)...


Like all biological populations, human groups can’t be neatly divided. Real populations are connected to each other, and their borders are blurred by migration and...


In Eurasia, humans once had Neanderthals for neighbors. That time of co-existence seems to have left its marks in our genome; non-Africans today share more genetic...


Transposable elements don’t proliferate in genomes at a steady pace; they often arrive in bursts. But models of neutral TE evolution assume transposition occurs at...