Patterns of inter- and intra-group genetic diversity in the Vlax Roma as revealed by Y chromosome and mitochondrial DNA lineages

@article{Kalaydjieva2001PatternsOI,
  title={Patterns of inter- and intra-group genetic diversity in the Vlax Roma as revealed by Y chromosome and mitochondrial DNA lineages},
  author={Luba V Kalaydjieva and Francesc Calafell and Mark A. Jobling and Dora Angelicheva and Peter de Knijff and Zo{\"e} H. Rosser and Matthew E. Hurles and Peter A. Underhill and Ivailo Tournev and Elena Marushiakova and Vesselin Popov},
  journal={European Journal of Human Genetics},
  year={2001},
  volume={9},
  pages={97-104}
}
Previous genetic studies, supported by linguistic and historical data, suggest that the European Roma, comprising a large number of socially divergent endogamous groups, may be a complex conglomerate of founder populations. The boundaries and characteristics of such founder populations and their relationship to the currently existing social stratification of the Roma have not been investigated. This study is an attempt to address the issues of common vs independent origins and the history of… 

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References

SHOWING 1-10 OF 40 REFERENCES

Genetic diversity in the Iberian Peninsula determined from mitochondrial sequence analysis

The timing of divergence of populations within Iberia points to a shared ancestry of all populations in the Upper Palaeolithic, and lineage diversity comparisons with European and North African populations shows the Iberian Peninsula to be more similar to other European populations, although a small number of Iberians lineages can be traced to North Africa.

European Y-chromosomal lineages in Polynesians: a contrast to the population structure revealed by mtDNA.

This is the first Y-chromosomal evidence of major European admixture with indigenous Polynesian populations and contrasts sharply with the picture given by mtDNA evidence.

Sequence diversity of the control region of mitochondrial DNA in Tuscany and its implications for the peopling of Europe.

The control region of mitochondrial DNA has been widely studied in various human populations. This paper reports sequence data for hypervariable segments 1 and 2 of the control region from a

Geographic variation in human mitochondrial DNA control region sequence: the population history of Turkey and its relationship to the European populations.

Although there is a very low level of genetic divergence among Caucasoid populations as shown by mtDNA control region sequences, a geographic pattern of genetic variation emerges, denoting a stepping-stone position of Turkey between the Middle East and Europe, which is in agreement with the hypothesis of a replacement of Neanderthals by modern humans.

Demographic history of India and mtDNA-sequence diversity.

The demographic history of India was examined by comparing mtDNA sequences obtained from members of three culturally divergent Indian subpopulations (endogamous caste groups). While an inferred tree

Recent male-mediated gene flow over a linguistic barrier in Iberia, suggested by analysis of a Y-chromosomal DNA polymorphism.

Evidence for direct or indirect gene flow over the substantial linguistic barrier between the Indo-European and non-Indo-European-speaking populations of the Catalans and the Basques, during the past few thousand years is provided.

From Asia to Europe: mitochondrial DNA sequence variability in Bulgarians and Turks

Mean pairwise differences suggest that a demographic expansion occurred sequentially in the Middle East, through Turkey, to the rest of Europe (Bulgaria included), and would correspond to the arrival of anatomically modern humans in Europe.

Origin of the Romany gypsies--genetic evidence.

Genetic heterogeneity and affinity was examined between nine Romany speaking gypsy populations and two of their possible ancestral populations from India, indicating the relative close relationship among the East gypsies and the two selected nomadic populations of India.

Y chromosomal DNA variation and the peopling of Japan.

Four loci mapping to the nonrecombining portion of the Y chromosome were genotyped in Japanese populations from Okinawa, the southernmost island of Japan; Shizuoka and Aomori on the main island of Honshu; and a small sample of Taiwanese, confirming the irregular distribution of this polymorphism in Asia.

Polymorphism at the tetranucleotide repeat locus DYS389 in 10 populations reveals strong geographic clustering

A model is proposed, in which both founder effects and genetic drift together with single step replication slippage mutations explain the picture of haplotype diversity observed with this single locus.