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Romani mtDNA

12 Jan
There is a new paper onthe genetics of the Roma People (Gypsies), with emphasis in mtDNA:
The lineages of this European people of South Asian origins can be divided in a clearly South Asian component (M5a1 specially, also M18, M25 and M35b), a most likely West Asian component (X2 and J1 clades specially), a possibly Balcanic component (H7 and U3) and “others” (clearly European lineages). The exact apportions vary among populations as follows:
Fig. 1
I think it is interesting demonstration of drift and founder effect how most pre-Europe “founder” lineages have vanished in most populations, specially in the rather well known “bottleneck” leading to non-Balcanic Roma: of all the Indian lineages almost only the largest one, M5a1, survives beyond that bottleneck. The same happens with West Asian X clades (barely surviving among Polish Roma).  Instead other lineages have been amplified in destiny regions, no doubt by founder effect. This is particularly true for U3 but also H7 and some of the J1 clades and even an Indian lineage barely found in the Balcans (M18, which has thrived in Spain instead).
If you now compare Spanish or Lithuanian Roma with the Bulgaria 1 sample (probably the one best representing the ancestral Roma, at least in their “founder” lineages fraction), it is almost difficult to recognize much affinity. Only M5a1 remains as a clear link. The Bulgaria 3 sample (Vallachian Roma arrived to Bulgaria in the 19th century) is maybe a more clear ancestral link but still the differences are notorious.
Indian origins
The authors argue, on statistical methodology (table 3), on a Punjab origin for the Roma, which is consistent with their language. However, as Manju points out at his blog, this is not so consistent, it seems with their patrilineages, which are probably from SE India, lacking R1a1, the most common NW Indian lineage (and I would add R2, L, J2, etc., all of which were in India some 2000 years ago when the Roma exodus must have happened, at the earliest).
Actually the state of Orissa has also high statistical likelihood for the origin of the Roma people, being only second to Punjab by the authors’ methodology. Also the main Roma founder mtDNA lineage, M5a1, is much more common in SE India than in the NW. This is also true for M18.
Fig. 3
So it is surely worthy to consider, as Manju does, whether the proto-Roma are ultimately original from Eastern or SE India, although incorporating lineages maybe from the NW, such as M35b, the same that they later did in West Asia and Europe. 
In this sense it is maybe worth considering in future studies comparing with the Domba people of South Asia and the Dom people of West Asia, generally considered to be likely relatives of European Roma.
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6 Comments

Posted by on January 12, 2011 in Roma people

 

6 responses to “Romani mtDNA

  1. terryt

    January 13, 2011 at 3:06 am

    "Actually the state of Orissa has also high statistical likelihood for the origin of the Roma people" Interesting. You'll see in the list I've sent that I have placed M5 as widespread, but M18 in Bihar and M25 and M35 in Central India. Sort of all round Orissa. It agrees with Manju who 'points out at his blog, this is not so consistent, it seems with their patrilineages, which are probably from SE India'.

     
  2. Maju

    January 13, 2011 at 3:36 am

    Manju has retracted in the comments, he seems to consider himself "unworthy" or something of questioning any paper's conclusions. Yet he clearly pointed to that idea in his original post.

     
  3. terryt

    January 14, 2011 at 2:56 am

    It would be interesting to discuss the various India M haplogroups with Manju. Wonder why he considers himself unworthy to question the paper.

     
  4. Gir dken nye

    March 21, 2015 at 9:53 pm

    Finally the Euro’s admit Romanian, Romani, and Roma Rule in Thrace!! Pay attention to the *rare* variety which isn’t really mentioned (especially with CRS) its J2b2 T7391C. ;D

     
    • Maju

      March 22, 2015 at 12:04 am

      Roma Rule in Thrace? What are you talking about?

       
      • Gir dkan nye

        June 25, 2015 at 11:48 pm

        Yes, Romani Rule by Ottomans, Greek Thrace, (Western Thrace). One fact is certain about forced conversion by Muslims – is they converted the most ancient groups first. Like the Kesar Ancestors of Ladakh the oldest known inhabitants (Burusho). With that said, I rest my *small claim* with you.

         

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