Today’s episode of Research Like a Pro is about pedigree collapse and its effect on DNA matching. We discuss the coefficient of relationship calculation and how that can help you estimate the expected amount of DNA two people should share based on the relationship in their trees. We talk about the Hopper case study with a DNA match with two individuals with multiple relationships and one of the test takers has pedigree collapse on the relevant line.
The Effect of Pedigree Collapse on DNA Matching: A Case Study – https://familylocket.com/the-effect-of-pedigree-collapse-on-dna-matching-a-case-study/
RLP 222: Multiple Relationships, Pedigree Collapse and Endogamy – https://familylocket.com/rlp-222-multiple-relationships-pedigree-collapse-and-endogamy/
RLP 225: How Multiple Relationships Affect DNA Match Analysis – https://familylocket.com/rlp-225-how-multiple-relationships-affect-dna-match-analysis/
Coverage Estimator at DNA Painter – https://dnapainter.com/tools/coverage
Research Like a Pro Resources
Research Like a Pro: A Genealogist’s Guide book by Diana Elder with Nicole Dyer on Amazon.com – https://amzn.to/2x0ku3d
Research Like a Pro eCourse – independent study course – https://familylocket.com/product/research-like-a-pro-e-course/
RLP Study Group – upcoming group and email notification list – https://familylocket.com/services/research-like-a-pro-study-group/
Research Like a Pro with DNA Resources
Research Like a Pro with DNA: A Genealogist’s Guide to Finding and Confirming Ancestors with DNA Evidence book by Diana Elder, Nicole Dyer, and Robin Wirthlin – https://amzn.to/3gn0hKx
Research Like a Pro with DNA eCourse – independent study course – https://familylocket.com/product/research-like-a-pro-with-dna-ecourse/
RLP with DNA Study Group – upcoming group and email notification list – https://familylocket.com/services/research-like-a-pro-with-dna-study-group/
Thanks for listening! We hope that you will share your thoughts about our podcast and help us out by doing the following:
Write a review on iTunes or Apple Podcasts. If you leave a review, we will read it on the podcast and answer any questions that you bring up in your review. Thank you!
Leave a comment in the comment or question in the comment section below.
Share the episode on Twitter, Facebook, or Pinterest.
Subscribe on iTunes, Stitcher, Google Podcasts, or your favorite podcast app.
Sign up for our newsletter to receive notifications of new episodes – https://familylocket.com/sign-
Check out this list of genealogy podcasts from Feedspot: Top 20 Genealogy Podcasts – https://blog.feedspot.com/
Thank you for today’s podcast, very timely for me. I’m helping on a case where I suspect there is pedigree collapse and/or multiple relationships (can there be both at the same time?). Do I understand correctly that these scenarios can inflate the shared cMs? And thank you for the Hopper case study. I will be bookmarking both this podcast and the case study for future reference.
Benita, yes, there can be both at the same time. In this example there were both multiple relationships and pedigree collapse for one of the test takers. I’m glad it’s helpful!
Oh my, this was so timely for me! I am trying to find the father – probable one of 4 brothers – of my great grandfather. I get so lost and I really appreciate your podcasts to help guide me. I’m going to re listen in a few minutes. Keep up the blessing you are to us out here!