Possible place of origin Central Asia Defining mutations M25 | Ancestor Q-F1096(F1215) | |
Possible time of origin 16,500 [95% CI 14,900 <-> 18,100] years before present (YFull v5.01) | ||
Haplogroup Q-M25, also known as Q1a1b is a subclade or branch of human Y-DNA haplogroup Q-F1096 (Q1a1), which is, in turn, a subclade of Q-MEH2 (Q1a). In human genetics, each Y-DNA haplogroup consititutes a biological paternal lineages back to a shared common male ancestor.
Contents
Distribution
Q-M25 has descendants in modern populations across all of Eurasia. Recent studies on the Turkmens of Iran and Afghanistan suggest that it is dominant Y-DNA in Turkmens. Only two detailed studies on the Y-DNA on Turkmens have taken place, one found that the Turkmens in Afghanistan have 31.1% Q-M25 and 2.7% Q1a3-M346(currently Q1a2-M346)(Q total 25/74=33.8%), another study found that 42.6% of Iranian Turkmens have haplogroup Q-M25 (also known as Q1a1b)
The Americas
Q-M25 has not been detected in pre-Columbian populations in the Americas.
Asia
Q-M25 has been detected in the Northeast of East Asia, in South Asia, and across Central Asia. Though present at low frequencies, it may be one of the more widely distributed branches of Q-M242 in Asia.
West Asia
The frequency of Q-M25 varies greatly across West Asia. An extreme peak is seen in the Turkmen of Golestan. Across the whole of Iran it varies from over 9 percent of the population in the north to only 2 to 3 percent of the population in the south. The frequency of Q-M25 drops to only about 1 percent of the population of Lebanon's Muslims, and it is absent from the non-Muslim population there. However, its presence in the Marsh Arabs(related to Sumer) of Iraq hints that Q-M25's West Asian history extends beyond a single localized recent founder.
Europe
Q-M25 is present across modern Turkey and in Eastern Europe.
Associated SNP's
Haplogroup Q-M25 is defined by the presence of the M25 Single Nucleotide Polymorphism (SNP) as well as the M143, L714, and L716 SNPs.
Phylogenetic Tree
This is Thomas Krahn at the Genomic Research Center's Draft tree Proposed Tree for haplogroup Q-M25.