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improve. We now have many members participating (including atDNA, mtDNA, and Y-DNA), and we have identified 7 distinct Y-Haplogroups.
Modal Haplotypes: Each subgroup has a "modal" STR profile (e.g., common values at DYS markers like 393=13, 390=24 for R1b groups). Matches within 4–7 genetic distance (GD) at 37 markers suggest shared ancestors in the 1400s–1700s.
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Amy Blakeney