Purpose: Explore the role of DNA testing in your genealogical research. Meeting topics may include:
• Understanding results of DNA tests from the testing companies
• The use of third-party tools to enhance the value of DNA test results
• Identifying ancestors by combining DNA results with traditional genealogical research
• DNA Ethnicity estimates
Format: Presentations on DNA testing followed by small group discussions
Schedule: Saturday, April 7, 1:15 – 3:00 pm
Location: Bayland Community Center, 6400 Bissonnett, Houston, TX
HGF members and others interested in applying DNA test results to their genealogical research are invited to attend.
Please send an email with any questions to firstname.lastname@example.org .
HGF DNA Interest Group (DIG) Presentations:
- February 24, 2018 – Ancestry DNA – DIG – Third-Party Tools – Part 2 – Using MedBetterDNA and GEDmatch to Research Your Shared DNA Segments
- January 27, 2018 – Ancestry DNA – DIG – Third-Party_Tools – Using Ancestry DNA and Third-Party Tools to Research Your Shared DNA Segments
- January 6, 2018 – Ancestry DNA – DIG – Segments and Centimorgans – Using Ancestry DNA’s segments and centiMorgan findings to help determine relationships to matches
- November, 2017 – Ancestry_DNA, and Your Genealogical Research Session 2 – Reviews Ancestry methods for interpreting your DNA results focusing on using Ancestry’s Filters
- November, 2017 – Tracking Ancestry DNA Results – Excel workbook used to track Ancestry DNA results and relationships.
- October, 2017 – Ancestry, DNA, and Your Genealogical Research – Reviews Ancestry’s strategy for using DNA results to uncover genealogical relationships.
Resources for DNA Analysis:
The ISOGG Wiki maintains a detailed comparison between testing companies on the page Autosomal DNA Testing Comparison Chart.
- 23AndMe – Only offers autosomal DNA tests. Second largest DNA database with about 2 million people tested.
- Ancestry – Offers autosomal DNA tests, records-based research, and creation of family trees. Has the largest DNA database with over 5 million people tested. Requires an Ancestry subscription to see family trees related to DNA matches.
- Family Tree DNA – Only company to offer Y-DNA and mitochondrial DNA tests as well as autosomal. Third largest DNA database.
- MyHeritage – Offers autosomal DNA tests, records-based research, and creation of family trees. Large international user base.
Third Party Tools
These websites and web browser extensions provide capabilities for examining your DNA test results which go beyond that provided by the testing companies.
- GEDMatch.com – GEDmatch provides DNA and genealogical analytic tools. Most tools are free, but Tier 1 tools are fee-based. The GEDMatch.com chromosome browser and matrices are some of the most useful tools for DNA analysis. Requires that Ancestry raw DNA data be downloaded from Ancestry and then uploaded into GEDMatch.
- dnaGEDcom.com – provides tools for DNA segment analysis. Also has tool to download Ancestry matches to Excel.
- MedBetterDNA – Enhances the Ancestry Shared Matches webpage by displaying Notes for all matches and allows matches to be filtered by hashtags placed in Notes. It can only be used with the Google Chrome browser which may be obtained from Google .
- DNAPainter.com – helps to identify and track DNA segments from individual ancestors. To use with Ancestry tests, requires that Ancestry raw DNA data file be loaded into GEDMatch and then the GEDMatch chromosome data be pasted into DNAPainter.
- “The Family Tree Guide to DNA Testing and Genetic Genealogy” by Blaine T. Bettinger. Available from Amazon in both book and Kindle formats. Very good introduction to basics of DNA for genealogy, selecting a DNA test, and analyzing and applying test results.
- “Genetic Genealogy in Practice” by Blaine T. Bettinger and Debbie Parker Wayne. Available from National Genealogical Society store in paperback format (NGS members receive a discount) and from Amazon in Kindle format. Detailed descriptions of use of DNA analysis in family research; includes exercises with answers. Explains how to apply the rules of the Genealogical Proof Standard (GPS) to genealogical research using DNA.
- “Swabbed & Found: An Adopted Man’s DNA Journey to Discover his Family Tree” by Frank Billingsley. Available from Amazon and Barnes & Noble. The story of an adoptee’s search for his biological parents using DNA and other genealogical evidence. Good review in the Houston Chronicle. Houston-area residents will recognize Frank Billingsley as the long-time KPRC weatherman.
- The International Society of Genetic Genealogists (ISOGG) Wiki – Comprehensive collection of articles on all aspect of genetic genealogy from basics to advanced analysis.
- Kitty Cooper’s Blog – Explanations and case studies demonstrating the use of DNA testing for genealogical research
- Deb’s Delvings in Genealogy – Debbie Wayne Parker’s blog on DNA analysis and other topics in genealogy.
- The Genetic Genealogist – Blaine Bettinger’s occasional blogs on DNA analysis. Posts results of Shared CM Projet.
- DNAeXplained – Genetic Genealogy – Roberta Estes’ blog on DNA analysis and case studies using DNA in genealogical research.
- Your Genetic Genealogist – CeCe Moore’s articles on DNA testing
- The DNA Geek – Leah Larkin’s blog. Recent posts include updates on the size of the testing companies DNA databases and the status of autosomal raw data transfers between companies. In a transfer, the DNA raw data file from one company is uploaded to the database of a different company. This allows persons who test with different companies to compare their results.
- Ancestry DNA Matching White Paper – A somewhat technical explanation of the methods used by Ancestry for processing DNA results and determining matches.
- AncestryDNA – DNA Circles White Paper – A technical explanation of the matching methods used to identify Ancestry’s DNA Circles
- The Shared cM Project – Version 3.0 (August 2017) – Tables showing ranges of shared centimorgans (cM) associated with various relationships (e.g. 1st cousin, 2nd cousin). Compiled by Blaine Bettinger from submissions by genealogists of over 25,000 test results.
- The McGuire Method Diagrams – A very efficient way to display shared cM data among a group of related individuals.