DNA portrait of Puerto Rican ancestry

National Geographic’s Genographic Project researches locations where different groups historically intermixed to create a modern day melting pot. Collaborating with 326 individuals from southeastern Puerto Rico and Vieques, the Genographic Project conducted the first genetic testing in the area with the goal to gain more information about their ancient past and learn how their DNA fits into the human family tree. The results, just published in the American Journal of Physical Anthropology, paint a picture of vast historic complexity dating back some 5,000 years, to the first Caribbean peoples.

Our Genographic team learned some key pieces of information that helped us gain more insight into the peopling of the Caribbean. Most surprisingly, we found that roughly 60% of Puerto Ricans carry maternal lineages of Native American origin. Native American ancestry, higher than nearly any other Caribbean island, originated from groups migrating to Puerto Rico from both South and Central America. Analysis of the Y Chromosome DNA found that no Puerto Rican men (0 percent) carried indigenous paternal lineages, while more than 80 percent were West Eurasian (or European).

These types of analyses, not just across the Caribbean or the world, but across a specific population’s DNA, can have strong historical implications and at the same time help paint a new picture of world history.

Read the full, original story: Genographic Project DNA results reveal details of Puerto Rican history

The GLP aggregated and excerpted this article to reflect the diversity of news, opinion, and analysis. Click the link above to read the full, original article.

5 thoughts on “DNA portrait of Puerto Rican ancestry”

    • Native American, African an Spanish blood. Back in the day when Spain ruled, the had N.A. an African slaves. Puerto Ricans get there green eyes from the spainish blood. Mi family shows all 3 races.

  1. According to the Taino Genome Project the autosomal data shows a range of 15% to 23% to be the average. The highest percentage found so far were of 39% in a few exceptional cases.

  2. There might be a historical reason why the Taino DNA mostly resides in the female Puerto Rican population which carries mitochondrial DNA. The Taino population started to decrease in numbers as the Europeans colonized the islands in the Carribean. Not all European men were able to bring their wives as they were part of a military colonization, so early on, the blending of the races started with the European males having children with the Taino women. A Taino male having children with an European female would be very rare in the early stages of colonization when the blending of the races occured.

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