H
Helle-Viivi Tolk
Researcher at University of Tartu
Publications - 6
Citations - 953
Helle-Viivi Tolk is an academic researcher from University of Tartu. The author has contributed to research in topics: Haplogroup & Haplogroup D-M15. The author has an hindex of 6, co-authored 6 publications receiving 927 citations.
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Journal ArticleDOI
The Emerging Limbs and Twigs of the East Asian mtDNA Tree
Toomas Kivisild,Helle-Viivi Tolk,Jüri Parik,Yiming Wang,Surinder S. Papiha,Hans-Jürgen Bandelt,Richard Villems +6 more
TL;DR: The phylogenetic backbone of the East Asian mtDNA tree is determined by using published complete mtDNA sequences and assessing both coding and control region variation in 69 Han individuals from southern China, confirming that the East Asia mtDNA pool is locally region-specific and completely covered by the two superhaplogroups M and N.
Journal ArticleDOI
The Genetic Heritage of the Earliest Settlers Persists Both in Indian Tribal and Caste Populations
Toomas Kivisild,Toomas Kivisild,Siiri Rootsi,Mait Metspalu,Sarabjit S. Mastana,Katrin Kaldma,Jüri Parik,Ene Metspalu,M. Adojaan,Helle-Viivi Tolk,Vadim Stepanov,Mukaddes Gölge,E. Usanga,Surinder S. Papiha,Cengiz Cinnioglu,Roy J. King,Luigi Luca Cavalli-Sforza,Peter A. Underhill,Richard Villems +18 more
TL;DR: Results show that Indian tribal and caste populations derive largely from the same genetic heritage of Pleistocene southern and western Asians and have received limited gene flow from external regions since the Holocene.
Journal ArticleDOI
An mtDNA perspective of French genetic variation.
Chrystelle Richard,Erwan Pennarun,Toomas Kivisild,Kristiina Tambets,Helle-Viivi Tolk,Ene Metspalu,Maere Reidla,Sylviana Chevalier,Stéphanie Giraudet,Lovorka Barać Lauc,Marijana Peričić,Pavao Rudan,Mireille Claustres,Hubert Journel,Ian Dorval,Claude Muller,Richard Villems,Andre Chaventre,Jean-Paul Moisan +18 more
TL;DR: The mtDNA haplogroup composition of the French does not differ significantly from the surrounding European genetic landscape, and at a finer grain, microgeographical differentiation can be revealed, as shown for the French Basque country and for Brittany.
Journal ArticleDOI
The population history of the Croatian linguistic minority of Molise (southern Italy): a maternal view
Carla Babalini,Cristina Martínez-Labarga,Helle-Viivi Tolk,Toomas Kivisild,Rita Giampaolo,T Tarsi,Irene Contini,Lovorka Barać,Branka Janićijević,Irena Martinović Klarić,Marijana Peričić,Anita Sujoldžić,Richard Villems,Gianfranco Biondi,Pavao Rudan,Olga Rickards +15 more
TL;DR: The results suggest that there was no reproductive isolation between the two geographically proximate, yet culturally distinct populations living in Italy and that the Croatian-speaking minority of Molise does not represent a reproductively isolated entity.
Journal ArticleDOI
The evidence of mtDNA haplogroup F in a European population and its ethnohistoric implications.
Helle-Viivi Tolk,Lovorka Barać,Marijana Peričić,Irena Martinović Klarić,Branka Janićijević,Harry Campbell,Igor Rudan,Toomas Kivisild,Richard Villems,Pavao Rudan +9 more
TL;DR: The first published phylogenetic analysis of haplogroup F worldwide is presented, applying the median network method, suggesting several scenarios how this maternal lineage may have been added to the Croatian mtDNA pool.