(Updated September 2021)
Project members are placed into groups based on SNP test results supported by STR matches.
Groups starting with A comprise members who are confirmed or predicted SRY2627+ and have DYS490=10.
These groups are confirmed or predicted to be CTS8289+ Z208+ - these SNPs appear to be equivalent to the DYS490 12->10 mutation.
Groups starting with B comprise members who are confirmed or predicted SRY2627+ Z205+ but Z208- and/or have DYS490=12.
These groups include:
(a) (groups C40-C51) Members who are confirmed SRY2627+ but Z205-
(b) (groups C80-C89) Members who are confirmed SRY2627+ and have DYS490=12 but do not have any downstream SNP results.
(c) (group C90) Members who are SRY2627+ but don't have a result for DYS490 or any downstream SNP results.
Members of groups C80-C90 are encouraged to order a Big Y test to refine their placement in the project.
Members of these groups are ZS312+ Z262+ and/or Z267+ but SRY2627-.
Members of this group are ZS312+ and Y19152+.
Members of this group are ZS312+ and BY3214+.
Members of this group are ZS312+ and FGC39110+.
Members of these groups are L165+.
There is a separate R-L165 Project - see www.familytreedna.com/groups/r-l165-project
Members of these groups are CTS4188+. Subgroups of R-CTS4188 have been identified via Big Y Testing.
Members of these groups are Z198+ but ZS312- CTS4188- and L165-
Q and R Groups
Members of these groups have incomplete SNP test results and so cannot yet be placed within one of the A-L groups. The Big Y test is recommended.