Earlier in July 2022, AncestryDNA launched a new feature: Chromosome Painter. In this post I’ll introduce a new tool that allows you to extract segment data that you can use to paint population information in your DNA Painter chromosome map.
Category: Tools
The Library of Matches is a new tool by Cody Ely with example shared segments for different known matches. This visualization of segments could help you distinguish between different relationship possibilities.
Bucketing is a new DNA Painter tool that can help you subdivide your segments based on match or segment lists of other relatives.
I’m pleased to release a new tool today called the Shared cM Investigator. Intended for those who have siblings tested, but not the parents of those siblings, the tool uses segments and a simple mathematical equation to estimate how much DNA the parent of those siblings might have shared with the match.
Categories
Distinct segment generator
As announced last month in the newsletter, the new distinct segment generator tool allows you to amalgamate a set of segments that more than one family member shares with a specific match. The tool will then output just the distinct segments, with the centimorgans (cMs) recalculated.
Launched in late 2020, the inferred segments generator helps users calculate the segments they can infer from the DNA their close relatives share with others. This can be a confusing concept. I recently added a small additional feature to the tool that can help you infer segments from a grandparent.
There’s a new feature in the Shared cM Project tool. You can now view the list of potential relationships for a specific number of cM shared in a tree format. Here are some notes on how this new feature works.
Categories
Common segment generator
I finally DNA-tested my children and got the results recently. This has been fascinating and I’m sure I’ll be writing more about it in the coming months. While working to interpret their tests, I’ve created the common segment generator.
I get a lot of correspondence and feedback from users of DNA Painter, which I’m very grateful for. In many cases this feedback helps me to make important improvements. I’m announcing two recent updates here, including the addition of most distant common ancestors to the shared cM tool. Shared cM Tool One key question in
In this follow-up article I discuss inferred chromosome mapping in more detail, also introducing a new tool I’ve created to make the process easier.