Tag: y-dna

Evolution of Steppe, Neolithic, and Siberian ancestry in Eurasia (ISBA 8, 19th Sep)

jena-isba8

Some information is already available from ISBA 8 (see programme in PDF), thanks to the tweets from Alexander M. Kim.

Official abstracts are listed first (emphasis mine), then reports and images with link to Kim’s tweets. Here is the list for quick access:

Updates (17:00 CET):

Turkic and Hunnic expansions

Tracing the origin and expansion of the Turkic and … Read the rest “Evolution of Steppe, Neolithic, and Siberian ancestry in Eurasia (ISBA 8, 19th Sep)”

Modern Sardinians show elevated Neolithic farmer ancestry shared with Basques

sardinia-europe-relation

New paper (behind paywall), Genomic history of the Sardinian population, by Chiang et al. Nature Genetics (2018), previously published as a preprint at bioRxiv (2016).

#EDIT (18 Sep 2018): Link to read paper for free shared by the main author.

Interesting excerpts (emphasis mine):

Our analysis of divergence times suggests the population lineage ancestral to modern-day Sardinia was effectively isolated from the mainland European populations ~140–250 generations ago, corresponding to ~4,300–7,000 years ago assuming a generation time of 30 years and a mutation rate of 1.25 × 10−8 per basepair per generation. (…) in terms of relative values,

… Read the rest “Modern Sardinians show elevated Neolithic farmer ancestry shared with Basques”

Mitogenomes from Avar nomadic elite show Inner Asian origin

ring-pommel-swords

Inner Asian maternal genetic origin of the Avar period nomadic elite in the 7th century AD Carpathian Basin, by Csáky et al. bioRxiv (2018).

Abstract (emphasis mine):

After 568 AD the nomadic Avars settled in the Carpathian Basin and founded their empire, which was an important force in Central Europe until the beginning of the 9th century AD. The Avar elite was probably of Inner Asian origin; its identification with the Rourans (who ruled the region of today’s Mongolia and North China in the 4th-6th centuries AD) is widely accepted in the historical research.

Here, we study the whole

… Read the rest “Mitogenomes from Avar nomadic elite show Inner Asian origin”

A study of genetic diversity of three isolated populations in Xinjiang using Y-SNP

indo-european-indo-iranian-migrations

New open access paper (in Chinese) A study of genetic diversity of three isolated populations in Xinjiang using Y-SNP, by liu et al. Acta Anthropologica Sinitica (2018)

Abstract:

The Keriyan, Lopnur and Dolan peoples are isolated populations with sparse numbers living in the western border desert of our country. By sequencing and typing the complete Y-chromosome of 179 individuals in these three isolated populations, all mutations and SNPs in the Y-chromosome and their corresponding haplotypes were obtained. Types and frequencies of each haplotype were analyzed to investigate genetic diversity and genetic structure in the three isolated populations. The results

… Read the rest “A study of genetic diversity of three isolated populations in Xinjiang using Y-SNP”

Long-term matrilineal continuity in a nonisolated region of Tuscany

iron_age_europe_mediterranean

New paper (behind paywall) The female ancestor’s tale: Long‐term matrilineal continuity in a nonisolated region of Tuscany, by Leonardi et al. Am J Phys Anthr (2018).

EDIT (10 SEP 2018): The main author has shared an open access link to read the PDF.

Interesting excerpts:

Here we analyze North-western Tuscany, a region that was a corridor of exchanges between Central Italy and the Western Mediterranean coast.

We newly obtained mitochondrial HVRI sequences from 28 individuals, and after gathering published data, we collected genetic information for 119 individuals from the region. Those span five periods during the last 5,000

… Read the rest “Long-term matrilineal continuity in a nonisolated region of Tuscany”

Viking Age town shows higher genetic diversity than Neolithic and Bronze Age

sigtuna-vikings

Open access Genomic and Strontium Isotope Variation Reveal Immigration Patterns in a Viking Age Town, by Krzewińska et al., Current Biology (2018).

Interesting excerpts (emphasis mine, some references deleted for clarity):

The town of Sigtuna in eastern central Sweden was one of the pioneer urban hubs in the vast and complex communicative network of the Viking world. The town that is thought to have been royally founded was planned and organized as a formal administrative center and was an important focal point for the establishment of Christianity [19]. The material culture in Sigtuna indicates that the town had intense

… Read the rest “Viking Age town shows higher genetic diversity than Neolithic and Bronze Age”

The father tongue and mother tongue hypotheses in Indo-European populations

New paper (behind paywall) Reconciling the father tongue and mother tongue hypotheses in Indo-European populations, by Zhang et al. National Science Review (2018) nwy083.

Interesting excerpts:

Here, we reassessed the correlation between genetic and linguistic characteristics in 34 modern IE populations (Fig. 1a), for which all four types of datasets (lexicon, phonemes, Y-chromosomal composition, and mitochondrial DNA (mtDNA) composition) are available. We assembled compositions of the Y-chromosomal and mtDNA haplogroups or paragroups from the corresponding IE populations, which reflect paternal and maternal lines, respectively (…)

Neighbour-Nets were constructed to delineate the differences between 34 IE population groups clustering at

… Read the rest “The father tongue and mother tongue hypotheses in Indo-European populations”

Y-DNA haplogroups of Tuvinian tribes show little effect of the Mongol expansion

uralic-turkic

Open access Estimating the impact of the Mongol expansion upon the gene pool of Tuvans, by Balanovskaya et al., Vavilov Journal of genetics and breeding (2018), 22(5):611-619.

Abstract (emphasis mine):

With a view to trace the Mongol expansion in Tuvinian gene pool we studied two largest Tuvinian clans – those in which, according to data of humanities, one could expect the highest Central Asian ancestry, connected with the Mongol expansion. Thus, the results of Central Asian ancestry in these two clans component may be used as upper limit of the Mongol influence upon the Tuvinian gene pool in a

… Read the rest “Y-DNA haplogroups of Tuvinian tribes show little effect of the Mongol expansion”

Y-chromosome mixture in the modern Corsican population shows different migration layers

mesolithic-europe

Open access Prehistoric migrations through the Mediterranean basin shaped Corsican Y-chromosome diversity, by Di Cristofaro et al. PLOS One (2018).

Interesting excerpts:

This study included 321 samples from men throughout Corsica; samples from Provence and Tuscany were added to the cohort. All samples were typed for 92 Y-SNPs, and Y-STRs were also analyzed.

Haplogroup R represented approximately half of the lineages in both Corsican and Tuscan samples (respectively 51.8% and 45.3%) whereas it reached 90% in Provence. Sub-clade R1b1a1a2a1a2b-U152 predominated in North Corsica whereas R1b1a1a2a1a1-U106 was present in South Corsica. Both SNPs display clinal distributions of frequency variation in

… Read the rest “Y-chromosome mixture in the modern Corsican population shows different migration layers”