Extended Data Fig. 3. Estimated mean coefficients (±1SE) of additional post-Neolithic ancestries measured on all the autosomes separately, and the X chromosome of the Aegean male individuals grouped by period.

A. Positive coefficients from ‘W. Eurasian Steppe En-BA’ in LBA-IA males were fitted (P ≥ 0.01) for most autosomes as well as chromosome X. WES-related ancestry estimated from the X chromosome was substantially lower compared to the autosomes, although only a few of these comparisons were significant (Z-score ≥ 3). B. The same analysis for the ‘eastern’ ancestry indicates no sex bias in admixture between the Late Neolithic and the Middle Bronze Age. P alues and standard errors of mean were calculated by the qpAdm program applying a likelihood ratio test and the 5 cM block jackknifing method, respectively. No correction for multiple testing was performed.