Domestication through the Bottleneck:Archaeogenomic Evidence of a Landscape Scale Process

Summary

This is an abstract from the "Frontiers of Plant Domestication" session, at the 84th annual meeting of the Society for American Archaeology.

Domesticated crops show a reduced level of diversity that is commonly attributed to the ‘domestication bottleneck’; a drastic reduction in the population size associated with sub-sampling the wild progenitor species and the imposition of selection pressures associated with the domestication syndrome. A prediction of the domestication bottleneck is a sharp decline in genetic diversity early in the domestication process. Surprisingly, archaeological genomes of three major annual crops do not indicate that such a drop in diversity occurred early in the domestication process. In light of this observation, we revisit the general assumption of the domestication bottleneck concept in our current understanding of the evolutionary process of domestication, and consider the implications of localized versus landscape scale models of agricultural origins.

This Resource is Part of the Following Collections

• Frontiers of Plant Domestication   •
• Society for American Archaeology 84th Annual Meeting, Albuquerque, NM (2019)

Keywords

Record Identifiers

Abstract Id(s): 25506