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Haplogroup R2a is also known as haplogroup R-M124. [2] The first reference to the newly defined haplogroup, "R-M124", was on 25 August 2010. [4]Before the publication of the 2005 Y-Chromosome Phylogenetic Tree, Haplogroup R-M124 was known as Haplogroup P1 and formerly thought to be a sister clade of Haplogroup R rather than derived from it.
Haplogroup R2, or R-M479, is a Y-chromosome haplogroup characterized by genetic marker M479. It is one of two primary descendants of Haplogroup R (R-M207), the other being R1 (R-M173). R-M479 has been concentrated geographically in South Asia and Central Asia since prehistory.
Geneticist Spencer Wells suggests that haplogroup K likely originated in the Middle East or Central Asia, perhaps in the region of Iran or Pakistan. [6] According to Bergstorm et al, deep-rooted haplogroup K2b1 (Y-haplogroup S/M) found in Indigenous Australians and ancestors of haplogroup R and Q (Y-haplogroup K2b2/root P) split in Southeast Asia near Sahul. [8]
Y-Chromosome Haplogroups all form "family trees" or "phylogenies", with both branches or sub-clades diverging from a common haplogroup ancestor, and also with all haplogroups themselves linked into one family tree which traces back ultimately to the most recent shared male line ancestor of all men alive today, called in popular science Y ...
The Y-chromosome DNA Haplogroups R1a1, R2, L, and J2, which are found in higher frequencies among various populations of the Indian subcontinent, are also observed among various populations of Europe, Central Asia, and Middle East. [7] Some researchers have argued that Y-DNA Haplogroup R1a1 (M17) is of autochthonous South Asian origin. [8]
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3.2 Y-DNA backbone tree. 4 External links. Toggle the table of contents. Haplogroup R-L295. ... Digging into Haplogroup R2 (Y-DNA) R2-M124-WTY (Walk Through the Y ...
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]
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