Walk Through the Y

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Walk Through the Y was a collaborative programme run by the commercial genetic genealogy testing company Family Tree DNA and headed up by Thomas Krahn. The objective was to identify new single-nucleotide polymorphisms on the Y chromosome. Several members of specific haplogroups were required to sign up for the project. Their results were usually co-ordinated in a dedicated WTY project (see list below). The participants each had a large region of their Y chromosome sequenced, and the results were then compared. The testing was done using traditional Sanger sequencing. Participation in the Walk Through the Y project cost around $500 and at that time around 300,000 base pairs were being sequenced. The coverage increased to over 600,000 by the time the price went up to $950. Participants were either self-funded or the cost was subsidised by donations to the various Y-DNA haplogroup projects. Participation in the WTY Project was by application only.

WTY was discontinued in 2013 and is now replaced by the new next generation sequencing tests. Family Tree DNA launched their NGS Big Y test in November 2013. A comprehensive Y chromosome sequence test is also available from Full Genomes Corporation.

Walk Through the Y Projects

Haplogroup

(Longhand)

Haplogroup

(Shorthand)

Project Name Administrator(s) Members
R1a R-M420 R1a-WTY 50
R1b1a2a1a1a R-U106 R-U106xL48WTY 16
R1b1a2a1a1a3a1a R-L1 R-L1/S26 Y-DNA Haplogroup Project (formerly The Null439 DNA Project) Blaine T. Bettinger, Ph.D; David Mason 138
R1b1a2a1a1b R-P312 R-P312 WTY (Walk Through the Y) Project Vincent Tilroe 45
R1b1a2a1a1b3 R-L21 R-L21WTY Kirsten Saxe, Alex Williamson, David Pike, David Stedman, Mark Jost, Vincent Tilroe 227
R1b1a2a1a1a3b2 R-L48 R1b-L48+WTY Analysis Charles Moore, Wayne Kauffman 105
R2a R-M124 R2-M124-WTY 155
T T T-WTY Paul Woods, Doyle Mathis, Gareth Henson 25

See also

External links