2020·Current biology : CB
Increased rate of close-kin unions in the central Andes in the half millennium before European contact
Ringbauer HPapers in this archive, Steinrücken MPapers in this archive, Fehren-Schmitz LPapers in this archive, Reich DPapers in this archive
Abstract
Analyzing ancient DNA of the central Andes, Ringbauer et al. identify a markedly elevated rate of unions of closely related parents after ca. 1000 CE. This change of mating preferences sheds new light on a unique system of social organization based on ancestry (“ayllu”) whereby within-group unions were preferred to facilitate sharing of resources.
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