GEDmatch X-Matches and Trees Now Available!

I decided to check again with GEDmatch Genesis today to see if one-to-many X-chromosome matching has returned. I’m glad I did, because it has.

GEDmatch.com began migrating to Genesis.GEDmatch.com a few months ago and no longer allowed uploading new DNA kits to gedmatch.com. This would have been fine, excepting that the Genesis version didn’t have a column for a family tree or one showing X-DNA matches in the one-to-many tool, both of which I’m very interested in.

I don’t know how long this has been available, but today I tried clicking on the link “One-To-Many Beta - give it a try” shown on the right side of the screenshot below.

It leads you to a new page on which you enter your kit number. I thought the interface was quite nice, especially compared to the old GEDmatch.

There’s already an autosomal one-to-many tool on the Genesis site that you may have previously used. If you’re just interested in checking out the beta version, feel free to leave the radio button on “autosomal.” Otherwise, and for the purpose of this article, remember to change it to “X.”

I left all of the parameters on the default settings. I may at some point relax the thresholds a little just to see what other matches are out there. However, doing so will make the matches less certain.

When you’re ready, click “Search.” The results came up very quickly. Autosomal information was also shown for each match, which I thought was nice. These are the columns that were displayed.

Now that the kit numbers of X-DNA matches are known, these can be used for analysis in the One-to-One Autosomal DNA Comparison and One-to-one XDNA Comparison NEW tools. Gedmatch recommends this in order to be certain that “any match is real.”

Note that one of the columns in the X-DNA One-to-Many Beta results was for a GED or WikiTree. This feature is working now as well. It looks like I’ll be using the beta version from now on!

Feel free to ask me about modeling & simulation, genetic genealogy, or genealogical research. And make sure to check out these ranges of shared DNA percentages or shared centiMorgans, which are the only published values that match peer-reviewed standard deviations. That model was also used to make a very accurate relationship prediction tool. Or, try a calculator that lets you find the amount of an ancestor’s DNA you have when combining multiple kits.

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