DNA: The Newest Tool for Genealogists [Y-DNA, mtDNA and atDNA test
The Main Line Genealogy Club 14 May 2015 by Jim Bartlett jim4bartletts@verizon.net
1 Concept
If two people have matching DNA, they have a common ancestor!
[per the type of DNA test]
[within a genealogical time frame]
Very powerful, extremely accurate info!
2 Levels (of involvement with DNA)
1. Accept the list of Matches, contact them, determine the Common Ancestor
-Relatively easy
-Focus is on genealogy
2. Use the DNA data
-Combine the DNA clues with genealogy
-Narrow your search
-Confirm your genealogy
-DNA is a powerful tool
3 Types of DNA tests – 3 different uses:
1. Y-DNA only passed from fathers to sons - Used in surname projects
2. mtDNA only from mothers to children - Used to trace all female lines
3. atDNA from parents to children - Find cousins from all ancestral lines
[Y= Y-Chromosome; mt= mitochondrial; at= autosomal]
3 Types of DNA “Projects”
Tracing all male line = SURNAME Project
- tests the Y-DNA: matching = common ancestor
- same SURNAME: easier to research
Tracing all female line… = usually D-I-Y Project
- tests mt-DNA: matching = common ancestor
- all SURNAMEs different: difficult to trace
Searching for all ancestors [Family Finder] = collaborate with cousins
- tests all at-DNA: matching = common ancestor
- share/compare with new matching cousins
DNA: Just DO IT!
Determine which test you want and who will provide the DNA
- you (for mt or Family Finder); only male for Y-DNA
Go to www.familytreedna.com *
- order a test (join a project for some discounts)
- have Kit mailed to you or sent to someone else
- pay by credit card or have them bill you
Follow Kit Instructions – like brushing your teeth
(no pain, no blood)
Mail the Samples back – wait………………………..
[*
you can use other companies, but FTDNA has highest
recommendations]
For Jim's 2013 notes, click
on links below
DNA Comparison chart
Using
FTDNA, 23&Me, and Ancestry DNA
for Autosomal DNA
DNA Testing for Genealogists