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Haplogroup J2 (Y-DNA)
See AlsoDescription
In human genetics, Haplogroup J2 (M172) is a Y-chromosome haplogroup .
Haplogroup J2 is widely believed to be associated with the spread of agriculture from Anatolia ( {{C. Cinnioglu et al. (2004), [http://hpgl.stanford.edu/publications/HG_2004_v114_p127-148.pdf Excavating Y-chromosome haplotype strata in Anatolia], Human Genetics '''114'''(2):127-48.}} ),( {{O. Semino et al. (2004), [http://hpgl.stanford.edu/publications/AJHG_2004_v74_p1023-1034.pdf Origin, diffusion, and differentiation of Y-chromosome haplogroups E and J: inferences on the neolithization of Europe and later migratory events in the Mediterranean area], American Journal of Human Genetics '''74'''(5):1023-34.}} ). This connection is supported by its age (18,500 +/- 3,500 thousand years ago) ( {{O. Semino et al. (2004), [http://hpgl.stanford.edu/publications/AJHG_2004_v74_p1023-1034.pdf Origin, diffusion, and differentiation of Y-chromosome haplogroups E and J: inferences on the neolithization of Europe and later migratory events in the Mediterranean area], American Journal of Human Genetics '''74'''(5):1023-34.}} ), 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 artifacts, such as figurines and painted pottery ( {{R. King and P.A. Underhill (2002), [http://hpgl.stanford.edu/publications/A_2002_v76_p707-714.pdf Congruent distribution of Neolithic painted pottery and ceramic figurines with Y-chromosome lineages], Antiquity '''76''':704-714 }} ).
It is a descendant haplogroup of haplogroup J .
Distribution
Haplogroup J2 is found frequently in Greece and Italy ( {{F. Di Giacomo et al. (2003), [http://www.familytreedna.com/pdf/italy.pdf Clinal patterns of human Y chromosomal diversity in continental Italy and Greece are dominated by drift and founder effects], Molecular Phylogenetics and Evolution '''28'''(3):387-95.
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