
There’s nothing that makes you feel older than when you start talking about how you used to do things “back in the day.” The problem with genetic genealogy is that back in the day isn’t really that far back. Since the advent of consumer DNA testing 25 years ago, great strides have been made to…
AutoKinship is a Tier 1 tool at GEDmatch. Unlike Autotree (1), it does not require GEDcoms to be useful. AutoKinship creates possible family trees based on the amounts of DNA that the matches share with each other, which means that it doesn’t require any of those matches to have trees associated with their accounts. Like…
AutoTree isn’t actually a standalone tool, so technically, this post is the sequel to my AutoCluster post (1). AutoTree searches the GEDcoms of your matches to see if it can find an MRCA for each cluster. Check off the AutoTree box to get AutoTree results when using the AutoCluster tool. Once you get your results,…
Now that I’ve explained the clustering (1)and triangulation (2)tools at GEDmatch, the scene is set to introduce a tool that I think of as the baby of these two tools. AutoSegment is a Tier 1 tool which you can find in the sidebar or dropdown menu. You enter a kit number and the number of…
A new tool recently came out at GEDmatch, and I wanted write a blog post about it so I could understand it better. I realized, however, that I had never written about GEDmatch’s clustering tool, which is useful for understanding how this new tool works. I’ve talked about clustering (1) before, when it was a…

I didn’t think there was anymore to say about triangulation, and then I was working on some presentations on various Gedmatch tools and noticed that there is now a triangulation tool. This tool kind of makes my original post (1) moot, but I’ll keep it up there because it’s a good explanation of what triangulation…
If you’re expecting to choose between a red and blue pill right now, you’re going to be sorely disappointed. But if you’re looking to understand how to read a matrix, you’re in the right place! First, how do we create a matrix? This can be done easily in GEDmatch (1), regardless of whether or not…
I posted one of my blog posts to LinkedIn (1) and someone asked an interesting question that gave me pause. “What if the two people you are comparing share DNA that you are not testing? How does one know that what is tested allows one to deem common ancestry “impossible,” thereby capable of being eliminated?…
I previously talked about chromosome painting (1) and how you can paint DNA matches you know to assign your DNA to your ancestors. Let’s review the basics of recombination before we jump to talking about inferred chromosome painting. My mom has two chromosomes, one from her mom and one from her dad, and those two…
Chromosome painting is one of those things that looks super confusing until you do it and realize it’s really not so complicated. And then you get addicted to it. I talked a little bit about chromosome painting in my post Painting Your Matches with Rootsfinder (1) but I’ve apparently never talked about Jonny Perl’s DNA…