DNA Marker Index information for Chromosome: Y Marker: M343Names and Aliases for this DNA Marker: M343, PF6242, R1b, rs9786184.Chromosome Position in hg38 Human Genome assembly1: 3019783.Chromosome Position in hg19 assembly2: 2887824 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: A.