Barry S. Hewlett

Ancient tree-topologies and gene-flow processes among human lineages in Africa

This study uses whole-genome sequencing and machine learning to reconstruct demographic history and gene-flow patterns among African populations, finding that tree-like histories with gene-flow pulses better explain genetic diversity than continuous gene-flow.

Hunter-gatherer genomes reveal diverse demographic trajectories following the rise of farming in East Africa

The paper analyzes genomic data from the Chabu, a hunter-gatherer group in Ethiopia, revealing a population bottleneck and diverse demographic responses to agropastoralism in East Africa.

A Genome Scan for Genes Underlying Adult Body Size Differences between Central African Pygmies and their Non-Pygmy Neighbors

The paper identifies genetic associations with body size traits in Central African Pygmies and non-Pygmies using SNP data from a modest sample size.