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Average frequency of J Haplogroup as a whole is highest in the Near East (12%) followed by Europe (11%), Caucasus (8%) and North Africa (6%). Of the two main sub-groups, J1 takes up four-fifths of the total and is spread on the continent while J2 is more localised around the Mediterranean, Greece, Italy/Sardinia and Spain
Within Europe, >2% frequency distribution of mtDNA J is as follows:
J* = Ireland - 12%, England-Wales - 11%, Scotland - 9%, Orkney - 8%, Germany - 7%, Russia (European) - 7%, Iceland - 7%, Austria-Switzerland - 5%, Finland-Estonia - 5%, Spain-Portugal - 4%, France-Italy - 3%
J1a = Austria-Switzerland - 3%
J1b1 = Scotland - 4%
J2 = France-Italy - 2%
J2a = Homogenously spread in Europe. Absent in the nations around the Caucasus. Not known to be found elsewhere.
J2b1 = Virtually absent in Europe. Found in diverse forms in the Near East.