Wednesday, September 12, 2018

New AncestryDNA Ethnicity Results/ Iberian Problem Bites Again

The new AncestryDNA results are a mixed bag. My cousin Darryl Kapple's results have improved. I stated in previous post that his AncestryDNA estimate completely missed the DNA he would have received from his Irish great-grandmother Helen Mullen, who was born in Ireland. He had no Irish admixture, whereas I did plus I was placed in the Connacht specific group. He now has 17% Irish/Scots Irish.

Playing Musical Iberian
Where do we sit now? 

The new estimate for my mother and I is less accurate, as far as the Iberian prediction. My mother's mother Graciela Del Castillo was Nicaraguan, and was likely more than half Spanish when you figure in 13% Native American and 4% African that my mother has, and what her remaining admixture percentage would be. She was also part German, but that percentage is unknown to me since I have not identified a German ancestor so far? According what I'm seeing looking at her DNA matches I would guess she would have been at least 60% Spanish. The surnames associated with her family are Lugo, Alvarado, Lacayo, and Granizo. Previously my mother was 11% Iberian at Ancestry. She also had Italian admixture which is completely gone. Now she is 2% Spanish, and 2% Portuguese, 1% Basque. She's lost 6% of her Iberian. 

My mother would have received 50% of her DNA from her mother so does it add up? Adding up what I see to be the Nicaraguan admixture, which is Native American, Iberian, and African, I get 22%. So where is the rest? Previously she was given 12% Italian, and 11% Iberian, which seemed to related to her mother's side. The Italian is gone completely. I do see 5%, which would be Iberian, remaining. 

Where is the missing 28%? I'm guessing it's primarily now gone over to French? She had no French before. The remainder may be in Northwest Europe representing a German great-great grandparent? My mother's father was mainly Scots-Irish and German. The 10% Ireland and Scotland would seem a little bit low too. 

It seems like the more mixed a person is ethnically the harder it is to get an accurate estimate. 

1 comment:

Aspira Counseling, Ventura said...

I am crying a bit over my Iberian new results, i had 26%, similar to you, my father was from Honduras, with some relatives in Nicaragua. Would be interesting to have on the ground research what the typicall DNA results are among families that stay in their local area and social class. I would think that the population in Honduras and Nicaragua is highly similar, but may differ between rural areas, city areas. Following the names alone on my ancestry so far, there should be heavy intermarriage among descendants of Spain and native locals, some french among some families, mine not so much, Persian among other's ( i know i have some Persians in my tree but not my ancestry. So, i wonder about the results with the Iberian having receeded and Sweden and england increasing again like it was on my first ancestry result. sigh. So how good is their database, if it comes mainly from US participants but they don't have a lot of european samples, how good is the data? The vast majority of my results link to Honduras, almost none to europe which tells me, not a lot of europeans use ancestry dna?