Atlantic Modal Haplotype
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In human genetics, the Atlantic Modal Haplotype (AMH) is a Y-chromosome haplotype of Y-STR microsatellite variations, associated with the Haplogroup R1b.
The AMH is the most frequently occurring haplotype amongst human males in Atlantic Europe. It is characterised by the following marker alleles:
- DYS388 12
- DYS390 24
- DYS391 11
- DYS392 13
- DYS393 13
- DYS394 14 (also known as DYS19)
The AMH is one of the best-characterized of the modal haplotypes of the R1b haplogroup. This haplotype reaches the highest frequencies in the Iberian Peninsula and in the British Isles. It reaches 33% in Portugal.
One mutation in either direction, would be AMH 1.15+. The AMH 1.15 set of haplotypes is also referred to as the Atlantic Modal Cluster or AMC. Often 1.15+ would be in haplogroup R1b1.
