Page 80 - The Ancestry of Francis Bryan (1770-1863)

DNA Painter has a few different tools available, but the one that has been most useful for me to date is the chromosome mapper. It does in a very refined way what I was clumsily trying to do, and failing to do, with my Excel spreadsheet in 2011.
Genetic Affairs integrates with DNA Painter and will take clusters generated from FamilyTreeDNA and 23andMe and automatically produce a chromosome map from the cluster information. You can also produce a similar chromosome map from clusters imported from MyHeritage. You cannot produce a chromosome map from Ancestry.com as they do not provide chromosome information.
Here is a description of the chromosome mapping tool from the DNA Painter site:
DNA Painter
The end goal of chromosome mapping is to be able to identify which ancestors were the source of your DNA, with as much granularity as possible.
So why would you want to do this?
• For many genealogists, chromosome mapping is innately fascinating, since it provides evidence of the presence of our forebearers within our own bodies. Discovering and recording which segments we inherited from different ancestors is an ongoing and addictive puzzle.
• You can use known matches to help you identify unknown matches. As soon as you know which ancestor was the source of a specific segment, you will have a better chance of identifying any new DNA matches who share this segment. If you're lucky, some of your DNA matches will also be mapping their chromosomes so that you can work on the mystery from both angles!
• Once you've visualized your matches, it becomes much easier to see overlaps and patterns, and many users have reported that DNA Painter has helped them to get through genealogical 'brick walls' by helping them to identify matches, which then leads them to information they didn't previously have.
The following page contains a sample of one of my chromosome maps on DNAPainter.
I have enlarged the legend. This is the chromosome map for my paternal aunt. Since I am currently researching just my paternal side it was helpful not to have to contend with my maternal DNA. I only have to sort between my aunt's paternal and maternal DNA and categorize them appropriately. Her maternal DNA is fairly easy to identify with many matches and excellent documentation.
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