Prediction of Y-chromosome haplogroup from Y-STR values is easy and fast with this program. You may choose a version of the program with the markers in FTDNA order or numerical order by clicking the button of your choice above. First time users should read the Instructions page first (see tabs above). Some companies use different standards for some markers, so read the "Conventions" page (see tabs above) to see which standards (nomenclature) are used in this program. Markers for which there are nomenclature issues are colored pink on the data entry page. An example of the data entry screen is shown below.
There are links on the right to two articles describing the "fitness score" calculations and the Bayesian probability calculations.
Which Haplogroup Are You In?
10 Dec 2012
New 111-marker Version
New Sub-Clade Version
01 Jan 2009
Changed I2a2 to I2a1 to
09 Jun 2008
Added C3 and G1 to beta
Changed to ISOGG-2008 Names
01 Feb 2008
04 Feb 2007
Text String Input Implemented
Batch Version 1 Released
15 Dec 2006
Version 5 Released.
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Copyright 2004-2013 Whit Athey -- All Rights Reserved.
Y Haplogroup Prediction from Y-STR Values
Ó Whit Athey
Click your program choice:
(The form below is a sample--not an actual data entry form)
Results appear in the results table below:
Click the ISOGG link above for a detailed Y phylogenetic tree and descriptions of the haplogroups with references and resources.
The haplogroup program has been re-coded in a very efficient manner by Doug McDonald, and his considerable contributions are gratefully acknowledged.
Click your program choice for 111 markers:
Main 111-Marker Program →