ICYMI-- What 770,000 Tubes of Saliva Reveal About America
fascinating
What 770,000 Tubes of Saliva Reveal About America
8 February 2017
by Anis Salvesen
What do you do with 770,000 tubes of saliva collected from AncestryDNA customers?
Ancestry® scientists have an unusual answer: create a ground-breaking map of America’s history-based diversity using the genetic data from the analysis of the samples.
This unique map shows this country’s great migrations, the echoes of our pioneer ancestors in our genes today.
MapMigration1_c
What The Map Reveals
Each color on the map represents a present-day community of individuals tied together through their genetics. And the location of the dots show where each community’s ancestors lived over generations.
This unique portrait of our country thus reveals that our genes hold the traces of our collective history. But what exactly does the map show?
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While people certainly moved back and forth from the north to south as well, if people had moved in the same volume from north to south, you’d see the bands fanning downward and not just from east to west.
But instead you can see powerful forces pushed people westward, even showing that the Mason-Dixon line separates some of the clusters.........................
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