Talk:Haplogroup G (Y-DNA)

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The statement about G being brought to Europe by Iranians is debatable; Indians, the descendants of ancient Aryans, show no presence of G and the high percentage of G in Ossetians is thus very probably only a result of the Caucasian influence and a genetic drift. 82.100.61.114 00:09, 17 March 2007 (UTC)

Haplogroup G is found among Aryans (Pakistanis and Indians), although at low frequency. It is even found in China, Malaysia, and parts of Oceania, especially the Malay Archipelago. This article on Balinese paternal heritage tabulates some samples from India, Malaysia, and China that belong to Haplogroup G. In Central Asia, Haplogroup G is found as far east as among the Mongols. The range of its distribution should not be underestimated; Haplogroup G just doesn't receive much attention because of its very low frequency among most modern populations outside of the Caucasus. That study that I linked to is very comprehensive; the researchers examined 1,989 Y-chromosomes that had been sampled from 20 populations of Southwest Asia, South Asia, Southeast Asia, Oceania, and Southern China and found a total of only 18 Haplogroup G-M201 Y-chromosomes, including 2 out of 32 Malaysians (6.25% of the Malaysian sample), 1 out of 166 Han Chinese (0.6%), 6 out of 405 Indians (1.5%), 5 out of 91 Sri Lankans (5.5%), 1 out of 22 Saudi Arabians (4.5%), and 3 out of 87 Syrians (3.4%). When one considers the tremendous size of the Indian population, it is easy to see the possibility that the Iran-Afghanistan-Pakistan-India belt (precisely the region of the "Aryans") probably contains the greatest number of Haplogroup G persons in the world. Ebizur 03:31, 22 March 2007 (UTC)

The presence of G in Pakistan is easily explainable as a result of the Neolithic migration from the Near East to Baluchistan and subsequently with the Dravidian expansion to Pakistan. 82.100.61.114 13:27, 23 June 2007 (UTC)

This is not meant to sound sexist, but could we also possibly have a picture of a Haplogroup G man? or a male from a Haplogroup G-rich population / area? At the very least, the picture of the woman should have a caption explaining who she was / where she was from. I'm assuming this is a Caucasian (((an excellent reason the term Caucasian should not be used to mean 'white skinned' in modern science. It should mean what it says: from the Caucasus))) woman, but the costume doesn't look Ossetian to me. —Preceding unsigned comment added by 71.217.225.211 (talk) 16:49, 11 November 2007 (UTC)

[edit] Image of "Ossetian girl"

Really again, like in the "R" Y-DNA article, the image an ethnic member of a population which is associated with the Y-DNA haplotype, but with the sex that is not, somehow to me seems like it just doesn't belong. Nagelfar (talk) 14:32, 31 December 2007 (UTC)

I agree. If a picture is appropriate at all (which is debatable), why not use a picture of a known Ossetian man? Like that of Kosta Khetagurov or Vladimir Gaglojev? Hrothberht (talk) 00:11, 21 March 2008 (UTC)

It may not be an 'aryan' marker. However, G most certainly originated on the Iranian plateau, as G*, G1, G2 are all in relatively high frequencies there. G* and G1 are higher in the south and G2 shows a healthy presence in the North (and south). Add this to the fact that R1a* and R1a1 show a fair presence (not to mention very high diversity) in eastern Iran (again, R1a1 being higher in the south), and that Scythian remains have shown to be high in haplogroups R1a1 and G, it is clear that the Scythians were late founders of the neolithic emmigrants of the Iranian plateau. Although, it is still safe to assume that the Iranians had some late influence from the steepes (Indeed, history tells us of the contact between Scythians and Persians).

The fact that G is not too common in Indo-Paki populations, certainly does not mean that it was not brought from the Iranian plateau (as well as taken to Europe), because G was never in high frequencies on the plateau, in the first place.

Haplogroup frequencies can be misleading. Population geneticists usually look at a combination of factors to determine HG origins: diversity, principal component analysis, and (least importantly) frequency. Just given the distribution pattern in Iran, I can tell you that G moved northwardly into the Caucauses (as well as south east into India and Pakistan), where it likely underwent genetic drift in certain populations.

 —Preceding unsigned comment added by Zadeh79 (talk • contribs) 01:36, 5 April 2008 (UTC)