Main Y-DNA Haplogroup R-M207 section (primarily for parahaplogroup discussions). Visit appropriate sub-forums for downstream SNPs
Y-DNA Haplogroup R1a general sub-forum
Y-DNA Haplogroup R1a-Z93 (all downstream SNPs inclusive) sub-forum
Y-DNA Haplogroup R1b general sub-forum
Y-DNA Haplogroup R1b-M73 sub-forum
Y-DNA Haplogroup R1b-M343 sub-forum for subclades or associated parahaplogroups negative for downstream SNPs
Y-DNA Haplogroup R1b-Z2103/Z2105 (all downstream SNPs inclusive) sub-forum
Y-DNA Haplogroup R1b-U106 general sub-forum (please visit relevant sub-sections for downstream SNP's)
Y-DNA Haplogroup R1b-Z18 (all downstream SNPs inclusive) sub-forum
Y-DNA Haplogroup R1b-Z381 (all downstream SNPs inclusive) sub-forum
Y-DNA Haplogroup R1b-P312 (all downstream SNPs including R-U152 and R-L21) sub-forum
Y-DNA Haplogroup R1b-U152 sub-forum. Dedicated subsection for L2+ and downstream subclades contained within. Other U152 content posted here.
Y-DNA Haplogroup R1b-L21 sub-forum. For specific downstream SNPs, please post in their relevant subsections. For general L21, or L21*, post here.
Y-DNA Haplogroup R2-M479 (all downstream SNPs inclusive) sub-forum