Congratulations to Benson Hsieh on his two papers that were recently accepted for publication in Genome Research. Both result from our close collaboration with Michael Hammer, Benon’s PhD co-supervisor.
In the first paper, we infer a complex demographic model for Central African Pygmies and neighboring farmers. We then use that model as the basis for whole-genome neutral simulations that account for recombination and mutation rate heterogeneity. Those simulations then act as a null model for scanning the genome for evidence of natural selection.
In the second paper, we use a similar null-model approach to test for evidence of archaic admixture into the ancestors of contemporary pygmies. We show not only that such admixture occurred, but that it likely occurred several times.