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my boyfriend got his results back from 23andMe and they said his haplogroup is maternal haplogroup R. there were no letters or numbers after the 'R'. his maternal line is siscilian, italian. could someone explain maternal haplogroup R to me? thanks...
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Haplogroup R is more common in Asia, but several branches like R1a are spread thinly accross Europe.Originally posted by jilski View Post
I just received the FGS results for my Bulgarian grandfather's maternal line, which was originally plain R, but now was refined to R1a1.
At HVR1 level I had many R matches around Europe with FamilyTree, but at haplogroup level(those, who did the FGS test) I have only 2 - one Italian and one Hungarian.
I have found something usefull in the study:
Mitochondrial DNA Phylogeny in Eastern and Western Slavs
B. Malyarchuk,* T. Grzybowski, M. Derenko,* M. Perkova,* T. Vanecek, J. Lazur,P. Gomolcak,k and I. Tsybovsky
Refinement of the Haplogroup R1 Phylogeny
There is very little complete mitochondrial sequence
data concerning haplogroup R1, very rarely observed in
European populations (Richards et al. 2000). In eastern Europe,
R1 haplotypes were encountered only in northwestern
Russians and Poles (Malyarchuk et al. 2004; Grzybowski
et al. 2007). To date, only one complete mtDNA sequence
belonging to this clade has been published from the
Brahmin population of India (sample C134; Palanichamy
et al. 2004). Five additional genomes presented here allow
us to refine the R1 phylogeny (fig. 2). The root of R1 can
now be defined by 15 coding region mutations, whereas
3 transitions at nps 4026, 5378, and 7424 separate subcluster
R1a from haplotypes characterized by transitions at nps
14162, 15497, and 16278. In turn, subcluster R1a consists
of 2 clades—an Indian one represented by sample C134
(Palanichamy et al. 2004) and the Caucasus/European
one, R1a1, which is defined by the 13105 and 13368 transitions.
It should be noted that haplogroup R1 was described
for the first time in Adygei from the northern Caucasus
(Macaulay et al. 1999). Its presence, albeit at low frequencies,
was then confirmed in some populations of the Caucasus
(e.g., in the Kabardins which are linguistically related
to the Adygei people) (Nasidze and Stoneking 2001), the
Near East (Richards et al. 2000; Rowold et al. 2007),
and the south Caspian region (in Iran and Turkmenistan)
(Metspalu et al. 2004; Quintana-Murci et al. 2004).
It has been suggested that haplogroup R1 and other
haplogroups rarely observed in European populations
(R2, N1a) were brought to Europe from the Near East in
the Neolithic times (Torroni et al. 2006). Meanwhile, the
complete sequencing of R1 mtDNAs suggests a deep split
between the more ancient 16278–16311 R1 branch and the
R1a subcluster, about 28,300 ± 4,900 YBP (fig. 2). A second
split (about 16,450 ± 4,100 YBP) is seen between the
Indian haplotype C134 and the R1a1 subcluster. Both R1
types are present in Adygei population of the northern
Caucasus (Macaulay et al. 1999), thus suggesting that
R1 evolution occurred in the Caucasus area, from where
these lineages have extended in different directions. It is
known that the Adygei people (the Adygei, Cherkess, and
Kabardins) are one of the most ancient indigenous populations
of the Caucasus region. Therefore, the presence of R1
haplotypes in populations of northwestern Russians can be
explained by the contribution of northern Caucasus populations
to the Russian gene pool.
However, my grandfather's sequence does not have the mutations 13105 and 13368 found in the Russian samples, nor is close to the Indian sample, so possibly is from the Caucasian branch.
Here is also the FamilyTree mtDNA haplogroup R project:
http://www.familytreedna.com/public/...tion=mtresults -
thanks... i wonder if his maternal line goes back to an asian grandmother...?Comment
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Yes, but could be 7000 years back with the spread of Neolithic people.Originally posted by jilski View Post
If I remember correctly, on the now defunct dna-forums there was another speculation - mtDNA R1 could be an Indo-European marker as it has some correlation with Y haplogroup R1a in Europe, Middle East and India.Comment
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