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Scientific article
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English

The population genomics of archaeological transition in west Iberia: Investigation of ancient substructure using imputation and haplotype-based methods

Published inPLOS Genetics, vol. 13, no. 7, e1006852
Publication date2017
Abstract

We analyse new genomic data (0.05±2.95x) from 14 ancient individuals from Portugal distributed from the Middle Neolithic (4200±3500 BC) to the Middle Bronze Age (1740±1430 BC) and impute genome wide diploid genotypes in these together with published ancient Eurasians. While discontinuity is evident in the transition to agriculture across the region, sensitive haplotype-based analyses suggest a significant degree of local hunter-gatherer contribution to later Iberian Neolithic populations. A more subtle genetic influx is also apparent in the Bronze Age, detectable from analyses including haplotype sharing with both ancient and modern genomes, D-statistics and Y-chromosome lineages. However, the limited nature of this introgression contrasts with the major Steppe migration turnovers within third Millennium northern Europe and echoes the survival of non-Indo-European language in Iberia. Changes in genomic estimates of individual height across Europe are also associated with these major cultural transitions, and ancestral components continue to correlate with modern differences in stature.

Keywords
  • Ancient DNA
  • Iberia
  • Genome
  • Population genetics
Funding
  • European Commission - BEAN – Bridging the European and Anatolian Neolithic: Demography, Migration, and Lifestyle at the Advent of Civilization [289966]
Citation (ISO format)
MARTINIANO, Rui et al. The population genomics of archaeological transition in west Iberia: Investigation of ancient substructure using imputation and haplotype-based methods. In: PLOS Genetics, 2017, vol. 13, n° 7, p. e1006852. doi: 10.1371/journal.pgen.1006852
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ISSN of the journal1553-7390
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