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 mixing. But when inferring ancestry of an individual from genetic data, populations are typically simplified into tidy, discrete units. In the December issue of G3: Genes|Genomes|Genetics, Yang et al. describe…

The January issue of GENETICS is out now! Check out the highlights below or the full Table of Contents here. Gene expression variation in Drosophila melanogaster due to rare transposable element insertion alleles of large effect, pp. 85–93 Julie M. Cridland, Kevin R. Thornton, and Anthony D. Long Cridland et al. report the first genome-wide analysis…