| Haplogroup J2 (y-dna) |
Article Index for Haplogroup |
Information AboutHaplogroup J2 (y-dna) |
|
Haplogroup J2 is widely believed to be associated with the spread of agriculture from Anatolia ,. This connection is supported by its age (18,500 +/- 3,500 thousand years ago) , which is very close to the beginning of the Neolithic , its distribution, which is centered in West Asia and Southeastern Europe, as well as its association with the presence of Neolithic archaeological artefacts, such as figurines and painted pottery . It is a descendant haplogroup of Haplogroup J . DISTRIBUTION Haplogroup J2 is found frequently in Greece and Italy , in Turkey , and in the Caucasus region . J2 is also found in India , where the subclade J2b2 is widespread and another subclade J2a is mainly restricted to North-West of the subcontinent population or later migrants to South and East India like Brahmin s . This, together with its believed Anatolian origin, may be suggestive that it was originally a part of the Proto-Indo-European gene pool. According to the theory of Colin Renfrew , Indo-European Languages spread from an Anatolian homeland . It should, however, be noted, that there is no perfect correlation between language families and genetic markers. Jews and Arabs also possess J2, as do Kurds and other Middle-Eastern populations . Typically, these populations of the Middle East have a higher frequency of the related haplogroup J1 than the populations of Europe and India where J2 is much more frequent. SUBDIVISIONS Haplogroup J2 is subdivided into two complementary sub-haplogroups: J2a, defined by the M410 genetic marker, and J2b, defined by the M12 genetic marker. A subclade of haplogroup J2a, defined by the M92 marker has been implicated in the ancient Greek colonization . REFERENCES |
|
|