The genetic variation in the R1a clade among the Ashkenazi Levites’ Y chromosome

Here, we report the variation of 486 Y-chromosomes within the Ashkenazi and non-Ashkenazi Levite R1a clade, other Ashkenazi Jewish paternal lineages, as well as non-Levite Jewish and non-Jewish R1a samples.

2017-11-02T13:43:42+00:00 November 2nd, 2017|

The ancient cline of haplogroup K implies that the Neolithic transition in Europe was mainly demic

Using a database with the mitochondrial DNA (mtDNA) of 513 Neolithic individuals, we quantify the space-time variation of the frequency of haplogroup K, previously proposed as a relevant Neolithic marker.

2017-10-14T07:56:21+00:00 October 14th, 2017|

Refining the South Asian Origin of the Romani people

In this study, based also on genome-wide SNP data, we attempted to refine these findings using significantly larger number of European Roma samples, an extended dataset of Indian groups and involving Pakistani groups into the analyses. Our Roma data contained 179 Roma samples. Our extended Indian data consisted of 51 distinct Indian ethnic groups, which...

2017-09-05T15:47:17+00:00 September 5th, 2017|

Signatures of human European Palaeolithic expansion shown by resequencing of non-recombining X-chromosome segments

This study demonstrates the potential of the use of X-chromosomal haplotype blocks, and the utility of the accurate ascertainment of rare variants for inferring human demographic history.

2017-05-05T11:54:44+00:00 May 5th, 2017|

The time and place of European admixture in Ashkenazi Jewish history

Ashkenazi Jews appeared in Europe in the 10th century, and their ancestry is thought to comprise European (EU) and Middle-Eastern (ME) components... The inferred admixture time was ≈30 generations ago, but multiple lines of evidence suggest that it represents an average over two or more events, pre- and post-dating the founder event experienced by AJ in late medieval times. The time of the pre-bottleneck admixture event, which was likely Southern European, was estimated to ≈25–50 generations ago.

2018-02-18T06:54:45+00:00 April 29th, 2017|

Late Danubian mitochondrial genomes shed light into the Neolithisation of Central Europe in the 5th millennium BC

Here we address this issue by presenting 5 complete mitochondrial genomes of various late Danubian individuals from modern-day Poland and combining it with available published data. Our data show that Late Danubian cultures are maternally closely related to Funnel Beaker groups instead of culturally similar LBK.

2017-04-19T22:30:19+00:00 April 19th, 2017|

Forensic genetic analyses in isolated populations with examples of central European Valachs and Roma

In this review article we present several examples of how analyzing samples from isolated populations can bias the results of the forensic statistics and analyses. We select our examples from isolated populations from central and southeastern Europe, namely the Valachs and the European Roma.

2017-04-19T21:14:04+00:00 April 19th, 2017|

A recent bottleneck of Y chromosome diversity coincides with a global change in culture

Here, we present a study of 456 geographically diverse high-coverage Y chromosome sequences, including 299 newly reported samples. Applying ancient DNA calibration, we date the Y-chromosomal most recent common ancestor (MRCA) in Africa at 254 (95% CI 192–307) kya and detect a cluster of major non-African founder haplogroups in a narrow time interval at 47–52 kya...

2016-12-11T19:07:50+00:00 October 28th, 2016|

Population history in third-millennium-BC Europe: assessing the contribution of genetics

Several recent high-profile aDNA studies have claimed to have identified major migrations during the third millennium BC in Europe. This contribution offers a brief review of these studies, and especially their role in understanding the genetic make-up of modern European populations.

2016-08-10T10:56:57+00:00 August 10th, 2016|