If the "African" DNA results are based on a E3a haplogroup *prediction* by FTDNA, then my suggestion is to search the Genealogy-DNA archives at rootsweb.com starting with the year 2005. While the E3a haplogroup is a common one in Africa, it also is showing up as a prediction in people that have paper trails to Europe. The introduction of the E3a haplogroup into a person's ancestry may have actually occurred in Europe in the distant past rather than assuming it had to happen in America, although that is definitely a possibility. In some cases, with further SNP DNA testing - the only way to determine a haplogroup with certainty - the prediction of E3a has been in error and the true haplogroup has been found to be something else. Also, the number of actual E3a haplogroups in the FTDNA database that have used for actual prediction purposes has been questioned in the past. (I don't know if that is still the case.) If a person has only had 12 Y-DNA markers tested and that resulted in the E3a prediction, then that could also be part of the problem. Twelve markers usually aren't enough to make an accurate haplogroup prediction. Whit Athey has a created a haplogroup predictor that is available online at: https://home.comcast.net/~whitathey/hapest/hapest.htm By inputting Y-DNA results into the predictor, the probability of the results fitting into different haplogroups can be compared. Rebecca
Thanks, Rebecca. My spread on that chart was 30 for E3a and 47 for haplogroup G. Those were my two highest. Values above 50 indicate a good fit (I didn't have any), between 20 and 50 a fair fit. So according to that chart, it is far from certain. Looks like I need to do the SNP test. Roy -----Original Message----- From: Rebecca Christensen [mailto:rchristen@sbcglobal.net] Sent: Thursday, December 08, 2005 4:35 PM To: PACE-L@rootsweb.com Subject: Re: [PACE-L] West African YDNA If the "African" DNA results are based on a E3a haplogroup *prediction* by FTDNA, then my suggestion is to search the Genealogy-DNA archives at rootsweb.com starting with the year 2005. While the E3a haplogroup is a common one in Africa, it also is showing up as a prediction in people that have paper trails to Europe. The introduction of the E3a haplogroup into a person's ancestry may have actually occurred in Europe in the distant past rather than assuming it had to happen in America, although that is definitely a possibility. In some cases, with further SNP DNA testing - the only way to determine a haplogroup with certainty - the prediction of E3a has been in error and the true haplogroup has been found to be something else. Also, the number of actual E3a haplogroups in the FTDNA database that have used for actual prediction purposes has been questioned in the past. (I don't know if that is still the case.) If a person has only had 12 Y-DNA markers tested and that resulted in the E3a prediction, then that could also be part of the problem. Twelve markers usually aren't enough to make an accurate haplogroup prediction. Whit Athey has a created a haplogroup predictor that is available online at: https://home.comcast.net/~whitathey/hapest/hapest.htm By inputting Y-DNA results into the predictor, the probability of the results fitting into different haplogroups can be compared. Rebecca ==== PACE Mailing List ==== You can search archived messages from the Pace Mailing List by going to http://searches.rootsweb.com. If you need instructions just ask me - gordonpace@comcast.net
I would suppose that the matches shown would also be significant. I had one 12/12 match with a person listing ancestry just as "African", an 111/12 to Gambia and another to Senegal, and a 10/12 match to those areas, NO matches to anywhere else. Roy Johnson -----Original Message----- From: Rebecca Christensen [mailto:rchristen@sbcglobal.net] Sent: Thursday, December 08, 2005 4:35 PM To: PACE-L@rootsweb.com Subject: Re: [PACE-L] West African YDNA If the "African" DNA results are based on a E3a haplogroup *prediction* by FTDNA, then my suggestion is to search the Genealogy-DNA archives at rootsweb.com starting with the year 2005. While the E3a haplogroup is a common one in Africa, it also is showing up as a prediction in people that have paper trails to Europe. The introduction of the E3a haplogroup into a person's ancestry may have actually occurred in Europe in the distant past rather than assuming it had to happen in America, although that is definitely a possibility. In some cases, with further SNP DNA testing - the only way to determine a haplogroup with certainty - the prediction of E3a has been in error and the true haplogroup has been found to be something else. Also, the number of actual E3a haplogroups in the FTDNA database that have used for actual prediction purposes has been questioned in the past. (I don't know if that is still the case.) If a person has only had 12 Y-DNA markers tested and that resulted in the E3a prediction, then that could also be part of the problem. Twelve markers usually aren't enough to make an accurate haplogroup prediction. Whit Athey has a created a haplogroup predictor that is available online at: https://home.comcast.net/~whitathey/hapest/hapest.htm By inputting Y-DNA results into the predictor, the probability of the results fitting into different haplogroups can be compared. Rebecca ==== PACE Mailing List ==== You can search archived messages from the Pace Mailing List by going to http://searches.rootsweb.com. If you need instructions just ask me - gordonpace@comcast.net