Dear Listmates, If Ancestry.com released the raw data files for their autosomal test, would they be directly comparable in the sense that they could be, for example, uploaded to GEDmatch and compared with RF and FF test results (presuming GEDmatch did the required tweaking for recognizing headers, etc.)? Is there any movement on pressuring them to do this? I have 2 FF, 1 RF, and now an Ancestry test all done from descendants of one particular pair of ancestors. I'd like to bring the Ancestry sample into the comparison fold. What gives? Gregg
Dear Gregg, I believe that it is highly probable that the Ancestry.com raw data files would be completely compatible with the 23andMe version 3 files and the FTDNA FF files. Ancestry.com has said that they are testing about 700,000 SNPs on their autosomal test. We also know that Ancestry.com has placed a large order with Illumina. Putting this together, it makes it very probable that Ancestry.com is using the Illumina OmniExpress SNP chip for their autosomal test. The OmniExpress SNP chip has 708,092 autosomal SNPs on it. I commented on another list recently that I am very concerned that there will be negative ramifications for the genetic genealogy community at large if Ancestry.com refuses to allow customers to download their raw data results. See http://archiver.rootsweb.ancestry.com/th/read/GENEALOGY-DNA/2012-05/13365293 78 for background. I definitely think it is appropriate for Ancestry.com customers to encourage Ancestry.com to allow downloads of the raw data files as well as to ask Ancestry.com to show the matching segment data (start and stop positions, chromosome #, number of SNPs in the matching segment, number of cMs in the matching segment, etc.). Sincerely, Tim Janzen -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Gregg Bonner Sent: Friday, May 18, 2012 3:01 PM To: [email protected] Subject: [AUTOSOMAL-DNA] Ancestry raw data file Dear Listmates, If Ancestry.com released the raw data files for their autosomal test, would they be directly comparable in the sense that they could be, for example, uploaded to GEDmatch and compared with RF and FF test results (presuming GEDmatch did the required tweaking for recognizing headers, etc.)? Is there any movement on pressuring them to do this? I have 2 FF, 1 RF, and now an Ancestry test all done from descendants of one particular pair of ancestors. I'd like to bring the Ancestry sample into the comparison fold. What gives? Gregg