I wrote to FTDNA asking about the interpretation of my Population Finder results, but haven't received a response yet, so I thought I would bring it up for discussion here.
I have tested with multiple companies, and have received various results on my ancestral makeup. On Ancestry by DNA's DNA Print 2.5, I was 86% European, 8% Native American, and 6% Sub-Saharan African. On DecodeMe, my results were 92% European, 4% Asian, and 4% African. Obviously DNA Print was mistaking the "East Asian" for Native American, a problem that several tests have apparently suffered from. On 23andMe, I was 99% European, and <1% each of Asian and African. This was recently revised by them to about 99% European and about 1% African. I also sent my 23andMe raw data to Dr Doug McDonald, who came up with the same numbers (99% Euro, 1% Afr).
Traditional, or "paper" genealogy suggests perhaps 1% - 5% African (or more precisely "Atlantic Creole," a mix of Angolan and Portuguese), the rest mostly English, with some Irish, French, Swedish, and possibly German. Although several of my ancestral families have the ubiquitous "Cherokee Princess Grandmother" legends, I never put a lot of stock in these stories, as they are fairly easily dismissed using traditional genealogical and historical methods.
Population Finder, however, picks up no African, only about 95% Orcadian and about 5% Middle Eastern. I'm not sure what to make of this. Is the African being picked up by the other tests an error, or is there some flaw with PF? If I am a mix of mostly English with small amounts of African and so on, would that "pull" my geographic estimate southeastwards, so to speak? Or does PF have problems with small amounts of ancestry, and thus simply can't pick it up?
Has anyone else tested with multiple services and received varying results?
I have tested with multiple companies, and have received various results on my ancestral makeup. On Ancestry by DNA's DNA Print 2.5, I was 86% European, 8% Native American, and 6% Sub-Saharan African. On DecodeMe, my results were 92% European, 4% Asian, and 4% African. Obviously DNA Print was mistaking the "East Asian" for Native American, a problem that several tests have apparently suffered from. On 23andMe, I was 99% European, and <1% each of Asian and African. This was recently revised by them to about 99% European and about 1% African. I also sent my 23andMe raw data to Dr Doug McDonald, who came up with the same numbers (99% Euro, 1% Afr).
Traditional, or "paper" genealogy suggests perhaps 1% - 5% African (or more precisely "Atlantic Creole," a mix of Angolan and Portuguese), the rest mostly English, with some Irish, French, Swedish, and possibly German. Although several of my ancestral families have the ubiquitous "Cherokee Princess Grandmother" legends, I never put a lot of stock in these stories, as they are fairly easily dismissed using traditional genealogical and historical methods.
Population Finder, however, picks up no African, only about 95% Orcadian and about 5% Middle Eastern. I'm not sure what to make of this. Is the African being picked up by the other tests an error, or is there some flaw with PF? If I am a mix of mostly English with small amounts of African and so on, would that "pull" my geographic estimate southeastwards, so to speak? Or does PF have problems with small amounts of ancestry, and thus simply can't pick it up?
Has anyone else tested with multiple services and received varying results?
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