Effective population size, Ne, is a key evolutionary parameter that determines the levels of
genetic variation and efficacy of selection. Estimation and interpretation of Ne are essential …

We review studies from our laboratories using different molecular tools to characterize the
Amerindian, European and African ancestry of Brazilians. Initially we used uniparental DNA …

According to historical records of transatlantic slavery, traders forcibly deported an estimated
12.5 million people from ports along the Atlantic coastline of Africa between the 16th and …

Abstract The Mexico City Prospective Study is a prospective cohort of more than 150,000
adults recruited two decades ago from the urban districts of Coyoacán and Iztapalapa in …

" Sometime before 15,000 years ago, a band of hunter-gatherers arrived in Northeast Asia.
They continued east, becoming the first people to set foot in the Americas. They soon found …

Across Europe, the genetics of the Chalcolithic/Bronze Age transition is increasingly
characterized in terms of an influx of Steppe-related ancestry. The effect of this major shift on …

Domesticated crops have been disseminated by humans over vast geographic areas.
Common bean (Phaseolus vulgaris L.) was introduced in Europe after 1492. Here, by …

Summary We investigate a 2,000-year genetic transect through Scandinavia spanning the
Iron Age to the present, based on 48 new and 249 published ancient genomes and …

The recently enriched genomic history of Indigenous groups in the Americas is still meager
concerning continental Central America. Here, we report ten pre-Hispanic (plus two early …

As the ancestral homeland of our species, Africa contains elevated levels of genetic diversity
and substantial population structure. Importantly, African genomes are heterogeneous: They …