The Reinyday Guide To Genealogical DNA Testing
About Public Databases
Y-DNA Databases. DNA Heritage sponsors a public Y-DNA database at www.Ybase.org. Likewise, Family Tree DNA sponsors a public Y-DNA database at www.Ysearch.org. You can choose to submit your results to these and other public databases after taking your DNA test.
Y-STR Databases. There are many Y-STR haplotype databases currently being developed globally, including ones at the University of Oxford, University of Arizona, Brigham Young University, University College London, University of Leicester, Family Tree DNA, and GeneTree Inc. The problem for researchers is that these databases are not available for public access. However, YHRD, the Y Chromosome Haplotype Reference Database (aka the Y-STR Haplotype Reference Database) is maintained by the forensic/research community. It allows you to search geographically and ethnically defined metapopulations
The SMGF (Sorenson Molecular Genealogy Foundation) Database is a free searchable Y-STR database. You may submit your DNA for free along with a paper pedigree, but they will not tell you your results. You will simply be added to the database.
Reliagene allows you to search their Haplotype Reference Database for U.S. Populations for matches within certain ethnic groups.
Sample Size. Just to get perspective on the databases mentioned above, here is a statistical comparison, updated regularly:
As of 26 April 2004: Name Haplotypes Surnames Notes Ysearch 3280 5193 run by Family Tree DNA Ybase 2105 3322 run by DNA Heritage SMGF 6736 4861 run by the owner of Relative Genetics & GeneTree Y-STR 3423 n/a 22,872 minimal haplotypes [requires less markers] Reliagene 3406 n/a only U.S. populations
Please note: these numbers use the "extended" haplotype instead of the "minimal" haplotype unless otherwise noted.
NCBI. The National Center of Biotechnology Information (NCBI) maintains a list of molecular databases, including nucleotide databases, protein databases, structure databases, taxonomy databases, genome databases, and expression databases. NCBI's Entrez (the "Life Sciences Search Engine") offers cross-database searches including dbSNP.
NCI. The National Cancer Institute's Cancer Genome Anatomy Project (NCI's CGAP) offers various databases and cancer research information. In particular, the the SNP500Cancer database provides sequence and genotype assay information for SNPs useful in mapping complex diseases such as cancer.
Additional Information. To learn more, please select from one of the following links:
- About This Site
- About Genealogical DNA Testing
- About DNA Surname Projects
- About the Testing Centers
- Order a Genealogical DNA Test
- Contact Information
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