FTDNA Download options for atDNA

+1 vote
66 views
FT_DNA offer three atDNA download options for Build-37; autosomal raw data ; Xchromosome raw data ; concatonated raw data.

Is 'concatonated' a combination of autosomal + X ?.

There are no definitions available. Which is the best download ?

This query is specific to data for upload to GEDmatch, but is the answer the same for all sites to which you can upload FT_DNA gz csv's ?.

If yes, and I have already uploaded an 'autosomal' file, will a 'concatonated' upload overwrite the 'autosomal' upload ?
in The Tree House by Alan Upritchard G2G2 (2.9k points)
Yes, concatenated just means that the put your X results after the autosomal in the same file. Currently, they still say use Build 37. (Build 38 exists, so presumably at some point they will switch to that.) If you are worried about overwriting, you can upload the files as separate DNA kits that will be assigned their own IDs. But as far as I know, there is no reason to want just the autosomal file uploaded, so overwriting it should be a good thing.
Thanks Barry. I assumed it was both, but nice to have it verified. I will update all my managed files to concatonated and hope they over-write, including my own. I have not looked at X so hoping for something interesting.

1 Answer

+1 vote

Build 37 Raw Data Concatenated. Not sure about overwriting, as at various times I have had more than one kit at Gedmatch, from different companies.

by Lincoln Lowery G2G6 Mach 2 (26.2k points)
I have both FT and Ancestry atDNA tests and like your idea that  GEDmatch can be used to compare them. Most appreciated.

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