Conversion page

Ybase is NIST-compliant.

All results released by DNA Heritage, Ancestry, SMGF, Genetree and Relative Genetics are compatible with no changes needed. The above companies have updated their databases to be compatible with NIST recommendations. Login to your online account for your most recent values.

A central document of past changes for DNA Heritage customers is maintained here

More information can be read via this post and this document by NIST.

If you have results from a DIFFERENT company, you will need to login to your online account for your most recent values. A comparison and conversion can be made using the table at
http://www.smgf.org/ychromosome/marker_standards.jspx (note that this is maintained externally but provides a central location for comparisons). If in doubt, please verify with the test company what changes need to be made to be NIST-compliant.

Please urge your test company to be NIST-compliant as it extends the usefulness of your results as you are able to more easily compare with individuals and groups.

In the past, variant names were used for some markers prior to them being assigned standard nomenclature. The column on the right of the table below
shows the correct names to use:

*The primers used to locate these markers are slightly different, yet the region amplified and analysed are identical. Therefore DYS19 is directly equivalent to DYS394. DYS19 is most in use by the academic community and hence is used by Ybase.

Haplotype entry and searches can only be performed on the correct, standard scientific nomenclature that Ybase uses.

DNA Heritage via www.dnaheritage.com
All marker changes made by DNA Heritage are noted in the one reference file

All marker changes made by Relative Genetics/GeneTree/Ancestry.com are noted in the one reference file