Mexican Women’s Mitochondrial DNA Primarily Native American

Amy Tilden

 Mitatwe’eptes (aka Amy Tilden) – Nez Perce – circa 1910

In the paper, “Large scale mitochondrial sequencing in Mexican Americans suggests a reappraisal of Native American origins,” Kumar et al provide a piece of information I find extremely interesting.

“For mtDNA variation, some studies have measured Native American, European and African contributions to Mexican and Mexican American populations, revealing 85 to 90% of mtDNA lineages are of Native American origin, with the remainder having European (5-7%) or African ancestry (3-5%). Thus the observed frequency of Native American mtDNA in Mexican/Mexican Americans is higher than was expected on the basis of autosomal estimates of Native American admixture for these populations i.e. ~ 30-46%. The difference is indicative of directional mating involving preferentially immigrant men and Native American women. This type of genetic asymmetry has been observed in other populations, including Brazilian individuals of African ancestry, as the analysis of sex specific and autosomal markers has revealed evidence for substantial European admixture that was mediated mostly through men. In our 384 completely sequenced Mexican American mitochondrial genomes, 12 (3.1%) are of African ancestry belonging to haplogroups L0a1a’3’, L2a1, L3b, L3d and U6a7; 52 (13.6%) belong to European haplogroups HV, JT, U1, U4, U5; and K and the majority (320, 83.3%) are of Native American ancestry.”

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About robertajestes

Scientist, author, genetic genealogist. Documenting Native Heritage through contemporaneous records and DNA.
This entry was posted in DNA, Mexico. Bookmark the permalink.

4 Responses to Mexican Women’s Mitochondrial DNA Primarily Native American

  1. Scott Sewell says:

    they finally figuring out that Mexicans are Indian…they might be slow but…

  2. Pingback: Mexican Women's Mitochondrial DNA Primarily Native American - 500 NATIONS | 500 NATIONS

  3. Stevie says:

    what about the spaniards that ruled mexico years ago. wouldn’t they show up as “European” dna today?
    The “immigrant ” preffering native American woman is farely common as with all races, but I see more immigrents marrying anglo women more than any other race. And im not surprised that they are native American domanent because of there Aztec bloodlines.

  4. Pingback: Mexican Women’s Mitochondrial DNA Primarily Native American | Mixed American Life

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