Preprint of a review by Iosif Lazaridis, The evolutionary history of human populations in Europe.
Steppe populations during the Eneolithic to Bronze Age were a mix of at least two elements, the EHG who lived in eastern Europe ~8kya and a southern population element related to present-day Armenians, and ancient Caucasus hunter-gatherers, and farmers from Iran. Steppe migrants made a massive impact in Central and Northern Europe post- 5kya[28,43]. Some of them expanded eastward, founding the Afanasievo culture and also eventually reached India. These expansions are probable vectors for the spread of Late Proto-Indo-European languages
… Read the rest “Lazaridis’ evolutionary history of human populations in Europe”
New open access article published in Scientific Reports, Analysis of the R1b-DF27 haplogroup shows that a large fraction of Iberian Y-chromosome lineages originated recently in situ, by Solé-Morata et al. (2017).
Haplogroup R1b-M269 comprises most Western European Y chromosomes; of its main branches, R1b-DF27 is by far the least known, and it appears to be highly prevalent only in Iberia. We have genotyped 1072 R1b-DF27 chromosomes for six additional SNPs and 17 Y-STRs in population samples from Spain, Portugal and France in order to further characterize this lineage and, in particular, to ascertain the time and place where
… Read the rest “Analysis of R1b-DF27 haplogroups in modern populations adds new information that contrasts with ‘steppe admixture’ results”