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In human genetics, Haplogroup J-M172 or J2 [Phylogenetics 1] is a Y-chromosome haplogroup which is a subclade (branch) of haplogroup J-M304. [ Phylogenetics 2 ] Haplogroup J-M172 is common in modern populations in Western Asia , Central Asia , South Asia , Southern Europe , Northwestern Iran and North Africa .
Y-DNA haplogroup migration in East Asia. The tables below provide statistics on the human Y-chromosome DNA haplogroups most commonly found among ethnolinguistic groups and populations from East and South-East Asia. ST means Sino-Tibetan languages.
However, J2 is found amongst 9% of the Kalash minority of north-west Pakistan. [6] In the Arabian peninsula, mtDNA haplogroup J is found among Saudis (10.5–18.8% J1b) and Yemenis (0–20% J1b). The J1b subclade also occurs in the Near East among Iraqis (7.1%) and Palestinians (4%). [7] In Africa, haplogroup J is concentrated in the northeast.
Haplogroup J-M304, also known as J, [Phylogenetics 1] is a human Y-chromosome DNA haplogroup.It is believed to have evolved in Western Asia. [2] The clade spread from there during the Neolithic, primarily into North Africa, the Horn of Africa, the Socotra Archipelago, the Caucasus, Europe, Anatolia, Central Asia, South Asia, and Southeast Asia.
A haplotype is a group of alleles in an organism that are inherited together from a single parent, [1] [2] and a haplogroup (haploid from the Greek: ἁπλοῦς, haploûs, "onefold, simple" and English: group) is a group of similar haplotypes that share a common ancestor with a single-nucleotide polymorphism mutation. [3]
The following articles are lists of human Y-chromosome DNA haplogroups found in populations around the world.. Y-DNA haplogroups by ethnic group; Y-DNA haplogroups in populations of Europe
Haplogroup J-P209 was found to be more common in India's Shia Muslims, of which 28.7% belong to haplogroup J, with 13.7% in J-M410, 10.6% in J-M267 and 4.4% in J2b. [ 58 ] In Pakistan , the highest frequencies of J2-M172 were observed among the Parsis at 38.89%, the Dravidian -speaking Brahuis at 28.18% and the Makrani Balochs at 24%. [ 59 ]
(Data from studies conducted before 2004 may be inaccurate or a broad estimate, due to obsolete haplogroup naming systems – e.g. the former Haplogroup 2 included members of the relatively unrelated haplogroups known later as Haplogroup G and macrohaplogroup IJ [which comprises haplogroups I and J].)