Ancient DNA (Y-DNA - mtDNA)


Source: the Ancient DNA map shows a geographical distribution* of the most reported ancient samples. The map is adapted and based on a public dataset generously made available by Carlos Quiles at Indo-European. To access both the ArcGIS Online map and the Google Drive folder with the dataset visit

*) Note: That the ancient DNA samples geographical distributions are insufficient to determine detailed SNP migration paths. To detect discrepancies a new metric is introduced; the "formed-to-age ratio" - named FAR. Low FAR values closer to 1.0 means that the ancient samples date (typically a radiocarbon date) derives from around when the SNP first was formed. Samples with a large FAR value indicates a discrepancy that can be due to many different causes, e.g. the ancient sample was tagged with a characteristic SNP when it was initially tested, rather than with more recent available tests that better determine the "true terminal SNP". Refer to graphics below.

Formed-to-Age Ratio - FAR

Samples: the oldest samples in the dataset range from +400.000 years to about 50.000 years but without any DNA results. Samples with DNA results range from the oldest about +48.000 years ago close to the youngest within a century from current date.

Interactivity: the icons on the map are interactive and on a click they reveal more information about the individual sample and additional links to related information, refer to graphic example below.

Ancient DNA Map - presentation