Biology:Haplogroup R1b-Z278

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Haplogroup R1b-Z278
Possible time of origin3,417 years
Possible place of originAsturias
Cantabria
León
AncestorR1b
R-M269
R1b-L11
R1b-P312
R-DF27
R1b-Z196
R1b-Z209
R1b-Z295
DescendantsR1b-CTS12074
R1b-M153
Defining mutationsZ278/S181
Highest frequenciesAsturians
Basques
Cantabrians
French
British
Americans
Basque Americans

R1b-Z278 or R1b1a2a1a2a1a1, is a Human Y-chromosome DNA haplogroup, belonging to the branch of R1b-DF27.[1] It is typical of Western European populations, and found in high frequencies in the north of Spain, Aquitaine and the British islands.[2]

Origin

The haplogroup R1b-Z278, was originated in the north central area of Spain around the year 1398 before our era,[3] and was possibly migrated to Gaul and the British Isles during the pre and post-Celtic movements in Western Europe.[4]

Currently this haplogroup is found at high frequencies in Cantabrians and Basque populations,[5] including also the Spanish and their descendants who emigrated to the United States. In accordance with Family tree, the R1b Z-278 is also found in the south west of France, as well in the United Kingdom, including Scotland, and some presence in Ireland, Italy and Puerto Rico. It is also found among Americans descended from the first settlers of Massachusetts and Virginia.[6]

The A4679, a sub-branch of the R1b-Z278 is found exclusively in populations of England.[7]

References

External links