Y-DNA Haplogroup A1a-M31
The subclade A1a-M31 has been found in around 2.8% in different ethnic groups in Guinea-Bissau, particularly among the Papel-Manjaco-Mancanha 7.8%. Also in about 5% of the samples of Mandinka from Senegambia and 2% of a sample of Dogon from Mali. Haplogroup A1a-M31 also has been found in 3% of a sample of Berbers from Morocco.
In 2007, seven men from Yorkshire, England sharing the unusual surname Revis were identified as being from the A1a (M31) subclade. It was discovered that these men had a common male-line ancestor from the 18th century, but no previous information about African ancestry was known.
In Finland, by April 2016 three men have been identified as being from the A-M31 subclade. The oldest known paternal A-M31 line goes back to the 16th century, local farmers. Due to the old Western Finnish surname practices, no surname can be given, as most Western Finns have been known according to the names of the farmer houses. therefore the Finnish A-M31 group has obviously longer known genealogical history than the British A-M31 group. This might mean both the Finnish and British A-M31 groups have been in Europe more than 500 years.
9 Jan 2016 / rarikola / 0
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