Using Y-DNA in Practice (James Irvine)
Channel: Genetic Genealogy Ireland
Date: 12/02/2020

GGI2019 Belfast - y-DNA tests enable the exploration of the origins and diaspora of surnames.  James Irvine has administered the Irwin surname project, now with nearly 500 members, since its foundation in 2005.  He will draw on this experience, and on other surname projects, to show how raw y-DNA test results can be enhanced using various tools, both on-line and “do-it-yourself”.  Using actual examples he will show how to identify Matches, how genetic distances can be both helpful and misleading, how STR test results can be grouped into genetic families, and how to calculate TMRCAs using both STRs and Big Y SNPs.

This lecture was presented at Genetic Genealogy Ireland 2019 in Belfast. Please note that these GGI videos are copyrighted to the presenter and should only be used for personal study. They are not to be used for any other purpose without the presenter's express permission. Also, please note that because this is a rapidly advancing field, the content may quickly become outdated. The lectures were sponsored by FamilyTreeDNA (at www.ftdna.com) and organised by Maurice Gleeson, a volunteer from ISOGG (International Society of Genetic Genealogy at www.isogg.org). ISOGG volunteers provided free DNA advice and support for members of the public at the conference.