Figure 1.

AmtDB (https://amtdb.org) advanced search overview. (A) The database was filtered for Neolithic and Copper Age samples from France and Spain. These samples also have following attributes: known sex (‘F’ or ‘M’), age between 4600 and 2200 BCE, complete mtDNA available, mt reconstructed (sequence source) from BAM files with average coverage at least 10, and are radiocarbon dated. (B) Visualization of the search results on a map, showing unclustered and clustered samples (clustering can be toggled on and off). Tooltip with sample links can be displayed for each sample or cluster (here shown for four samples cluster from Arroyal I site in Burgos, Spain).