Below is a plot for another K = 13 admixture analysis of prehistoric and modern genomes. This analysis includes a Middle to Late Neolithic sample from Ballynahatty in Northern Ireland, and three Early Bronze Age samples from Rathlin Island in Northern Ireland.
The three Bronze Age samples belonged to Y haplogroup R1b-L21, which has always clearly been associated with the Insular Celtic languages (except in the confused minds of some very stupid people). It has been obvious since early last year that the R1b-L21 men of the British Isles were descended from the R1b-P312 men of the Bell Beaker culture. And we know from my discovery of four months ago, along with abundant archeological evidence, that the R1b-P312 men of the Bell Beaker culture were descended from R1b-M269 men who were already in Iberia hundreds of years before that culture began.
The analysis the plot is based on uses only part of the data for the four Irish samples. The numbers of SNPs used for these samples are below.
Sample Period Date SNPs Ballynahatty Middle to Late Neolithic 3343–3020 BC 45,762 Rathlin 1 Early Bronze Age 2026–1885 BC 47,044 Rathlin 2 Early Bronze Age 2024–1741 BC 40,568 Rathlin 3 Early Bronze Age 1736–1534 BC 29,938