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R-BY175423 is a SNP located on the human Y chromosome at 12910530. The ancestral allele is T, whereas the derived allele is G. R-BY175423 is a subclade of R-FT31956, and of its parent clade R-FGC3268. Those who are positive for R-BY175423 are also positive for R-L21, R-DF13, and R-Z253. Currently, R-BY175423 has two descendant clades, but as the marker is relatively new and untested, more are sure to follow.
• R-L21
• R-S552
• R-DF13
• R-ZZ10_1
• R-Z253
• R-FGC3268
• R-FT31956
• R-BY175423