Haplogroup R1b (DYS392=12)
The Atlantic Modal Haplotype has many variants. Any basic haplotype that differs from
the AMH values of 14-12-24-11-13-13 by a single step, on any marker, in any direction, is
still considered part of AMH. The haplotype below exhibits the
DYS19/DYS388/DYS390/DYS391/DYS392/DYS393 marker values
14-12-24-11-12-13, which puts it in that category.
However, it is important to note that DYS392 has one of the lowest observed
mutation rates of all twelve key markers, and that R1b haplotypes with values of 12,
rather than 13, at that marker are very rare. Such values are most likely the product
of random mutations, and are not currently thought to signify a separate subclade.
Of the top ten frequencies here, three fall among Amerindian or African-American
samples. This may indicate some level of convergence, but most likely indicates mixing
with persons of European descent.
Four of the top frequencies fall in Iberia or Latin America, and four fall in a variety of
other European locales - namely, The Netherlands, Alsace, Northern Italy and Hungary.
Of the remaining eleven locales, seven are in Iberia or Latin America. The rest are
in Switzerland, Northern Italy and - at very low levels - in Germany.
Although this haplotype may occur by random mutation alone, irrespective of the
genetic trends in the host population, it might also have proliferated from random
mutations that occurred long ago in particular locales. If that is so, this haplotype
would most likely have had an Iberian origin - and may have come to Britain from a
either "Celtic", Roman or Sephardic source.
|Bogota, Colombia [European]||.68|
|Antioquia, Colombia [European]||.25|
R1b DYS392=12 Haplotype #2
There are only three matches for this haplotype. The match in Syria is suspect because it might reflect convergence
with a non-R1b haplotype, but the matches in Argentina and Northern Italy make sense. Those suggest that this haplotype
may have originated among the Iberian or Celtic peoples of southwest Europe. The DYS392 value of 12 is most likely a local
mutation from 13, and the original signature a variant of the Atlantic Modal Haplotype.
|Mendoza, Argentina [European]||.78|
R1b DYS392=12 Haplotype #3
Since DYS392 values of 12 are highly atypical of R1b, the results below are difficult to interpret. The Hispanic
matches could reflect the Iberian origin of British R1b - or they could simply be the result of convergence with non-R1b
haplotypes common among Native Americans. The German match appears legitimate however, and suggests
that an Anglo-Saxon origin is as possible as a prehistoric Iberian one.
|Pennsylvania, USA [Hispanic-American]||3.13|
|Connecticut, USA [Hispanic-American]||1.89|
|Halle, Germany [Germany]||.85|