Y-STR Haplotype Databases
Regional Y-STR Haplotype Databases
There are many regional Y-STR haplotype databases currently being developed globally. The ones known are those at the University of Oxford, University of Arizona, Brigham Young University, University College London, University of Leicester, Family Tree DNA (Ysearch), Relative Genetics and YHRD. The problem for researchers is simply most of these databases are not available for public access.
The Institute of Legal Medicine, Charité - University
Medicine Berlin, provides the web site and update for one of the best
international YSTR databases. It is
called the Y-STR Haplotype Reference Database (YHRD).
As a result of the
4th International Y-User Workshop “Haploid DNA Markers in Forensic
Genetics” held in Berlin November 18-20, 2004, release 15 of the YHRDatabase
was made available on December 20, 2004. The YHRDatabase now consists of 28.650
haplotypes in a worldwide set of 249 populations.
The core set of
loci referred to in the Y-STR haplotype database includes the following markers
all of which were evaluated for years in forensic practice and fulfill the ISFG
requirements for Y-STR polymorphisms used for casework analyses are:
By clicking on YHRDatabase one can type in values for up to 10 Y-markers. Then select the geography desired (North America, Europe, etc) and determine the frequency of your alleles in any population currently defined in the database.
Family Tree DNA, of Houston, Texas provides their “Ysearch” web site which allows people that have been Y-tested by other companies to make their database of haplotypes available for comparison. They have added several tools that allow you to compare side-by-side different users - the YsearchCompare - as well as generate a Genetic Distance™ Report, and many other features, including the upload of GEDCOM files. The Ysearch web site can be accessed by clicking on Ysearch.
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