DNA surname projects
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from their fathers. Women do not have y-DNA.
What are DNA surnames projects?
DNA Surname projects have been set up to conduct what are essentially genetic censuses of people with particular surnames. These projects have proliferated since it became obvious that patterns on Y-chromosones (known as Y-dna signatures) can be associated with particular surnames.
This is because men inherit both y-dna and (usually) a surname from their fathers. Every now and again, a harmless mutation of the y-dna occurs. The y-dna signature is, therefore, the mark of a distinct paternal line. (Find out more about paternity dna testing.)
In simple terms, people with matching Y-dna signatures are related; those whose Y-dna signatures do not match are not related, despite their sharing a surname.
DNA surname projects bring together disparate folk who share the same surname. Each member of the project has his y-DNA tested and its analysis is added to the project's database.
This database can then be scutenised for 'matches' of similar DNA sequences.
Where's the genealogical value?
Here are a few examples of how y-DNA surname projects can be of genealogical value:
How to join a y-DNA surname project
A number of testing companies are now established to handle DNA surname projects. One of the largest providers of tests is Family Tree DNA. As the company's name suggests, it is clearly aimed at genealogy researchers and understands the objectives of its genealogist customers. It offers tests for Y-DNA, mt-DNA and at-DNA analysis, runs DNA surname projects and offers a searchable database. Its customer base is international.
Check the website to see if it has an existing project for your name. If one does, it makes sense to take the y-DNA test with the company where the project is hosted. An obvious reason is to take advantage of the financial discount that is usually available. But there's also a technical reason. Testing companies use different markers which can make it difficult to compare the results for two men if they have been tested with different laboratories.
If there is no surname project for the name you are studying, you can set one up yourself. The duties of a project administrator are fairly limited so don't be put off. You'll probably find that you're entitled to a discount on your tests, too.
The larger the surname project's database, the greater your chances of finding a match so if you have to start one up it may be some time before you find a match.
Other DNA 'matching' projectsWhile y-DNA surname projects are currently the most popular type of DNA matching projects, there are also database groups being formed for matching mtDNA.
These are projects designed to bring together individuals with matching mtDNA (the dna that 'traces' the migratory path of women over more than 100,000 years) haplogroup.
They usually then break down further into sub-clades of the haplogroup.
Unlike y-DNA surname projects, mtDNA groups don't have any immediate value in the traditional genealogical sense. They might add to a wider appreciation of your deep ancestry over millenia, but you won't be adding new names and branches to your existing tree.