My understanding is that DNA test are very accurate, but one thing is the test and a completely different thing is the attribution of it to specific ethnicities and as has been said this is very estimative and not highly accurate because it depends on samples in data bases that may or may not be accurate and if there is not big differences in tests from one company to another, the interpretations are very fussy. That been said, the ethnicity attribution is just indicative and a good one. On the particular thing about andean native, probably there are similarities between north and southamerica, similarities that are evident. Also, exchanges between Mexico and Peru in colonial times were rather intense and the route between Acapulco and Callao was well trodden.

Hi Cruzmeza,
I dont know which company you used for your DNA test. I made my DNA test with MyHeritage, my wife who is French and our grand-son did it also and the results are very logical.
I dont understand how you can have 12 percent Peruvian, unless the database used by your provider found that in Peru there are some people with the same genome as you which is a wrong way to determine your ancestry.
Normally less that 5 percent can be erroneous but 12 percent is strange.
Historically, the Peruvian conquest was organized from the Pacific coast of Mexico (I have some ancestors who died in Peru) but I dont have any information of bringing people from Peru to Mexico.
Regards.
Jorge

DNA is as accurate as the availability of samples in existence, is still at some degree in its infancy, thus I wouldn't keep thinking around the results too much if they seem off. In an interview I heard on npr a while ago mentioned how inaccurate was when applied to genealogy, a lot of Hispanic, Asians and other non white groups kept getting European, and the reason was because those were the only samples they had, at some point many ethical groups will relate, but we are talking in the thousands of years.

If that specific place where you got tested doesn't had closer samples to compare with your DNA it will give you the closest possible even if in terms of genealogy, isn't really that close. Is obvious that all indigenous groups of the American continent will share DNA that comes from the days of the "Beringia" settlements, then it might be that is just the indigenous DNA of the Nueva Galicia area that happen to be similar to the Peruvian.

A acquaintance got some tests years ago, in one place got Asian, and in other got Hispanic, the only thing that changed was the last name used, this person is from the Philippines, thus even with samples, the companies simply assumed that those belonged to either or, when in fact was likely both. I don't know the details though, but again, don't stress too much for it, records finding still the most rewarding part genealogy. :)

Hello. My AncestryDNA results indicate 1% ethnicity estimate to Indigenous Americas—Bolivia & Perú. I really didn't expect that, but being that our early ancestors on this side of the globe traveled a lot, it kinda made sense.

Regarding not finding any indicators of strictly "Peruvian" descent, I suspect the Spanish authorities during the Viceroyalty of Nueva Granada, as from Nueva Galicia, wouldn't categorize native Americans based on their location, but rather generalized them as you've indicated.

Please keep in mind that this is my theory. I'm not a professional genealogist, but I'm sure someone on this forum can enlight us both.