Search Results for: v88

Villabruna cluster in Late Epigravettian Sicily supports South Italian corridor for R1b-V88

epipalaeolithic-whg-expansion

New preprint Late Upper Palaeolithic hunter-gatherers in the Central Mediterranean: new archaeological and genetic data from the Late Epigravettian burial Oriente C (Favignana, Sicily), by Catalano et al. bioRxiv (2019).

Interesting excerpts (emphasis mine):

Grotta d’Oriente is a small coastal cave located on the island of Favignana, the largest (~20 km2) of a group of small islands forming the Egadi Archipelago, ~5 km from the NW coast of Sicily.

The Oriente C funeral pit opens in the lower portion of layer 7, specifically sublayer 7D. Two radiocarbon dates on charcoal from the sublayers 7D (12149±65 uncal. BP) and 7E,

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Ancient Sardinia hints at Mesolithic spread of R1b-V88, and Western EEF-related expansion of Vasconic

nuragic-sardinia-neolithic

New preprint Population history from the Neolithic to present on the Mediterranean island of Sardinia: An ancient DNA perspective, by Marcus et al. bioRxiv (2019)

Interesting excerpts (emphasis mine, edited for clarity):

On the high frequency of R1b-V88

Our genome-wide data allowed us to assign Y haplogroups for 25 ancient Sardinian individuals. More than half of them consist of R1b-V88 (n=10) or I2-M223 (n=7).

Francalacci et al. (2013) identified three major Sardinia-specific founder clades based on present-day variation within the haplogroups I2-M26, G2-L91 and R1b-V88, and here we found each of those broader haplogroups in at least one

… Read the rest “Ancient Sardinia hints at Mesolithic spread of R1b-V88, and Western EEF-related expansion of Vasconic”

R1b-V88 migration through Southern Italy into Green Sahara corridor, and the Afroasiatic connection

palaeolithic

Open access article The peopling of the last Green Sahara revealed by high-coverage resequencing of trans-Saharan patrilineages, by D’Atanasio, Trombetta, Bonito, et al., Genome Biology (2018) 19:20.

Abstract:

Background
Little is known about the peopling of the Sahara during the Holocene climatic optimum, when the desert was replaced by a fertile environment.

Results
In order to investigate the role of the last Green Sahara in the peopling of Africa, we deep-sequence the whole non-repetitive portion of the Y chromosome in 104 males selected as representative of haplogroups which are currently found to the north and to the south of

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Y-DNA of 129 high quality shotgun ancient samples

ftdna-shotgun-samples-map

The Reich Lab has recently pre-published high quality shotgun sequencing data from 216 ancient individuals within the framework of the Allen Ancient Genome Diversity Project / John Templeton Ancient DNA Atlas. Metadata for the 216 genomes are available here.

Their median coverage is 4.9x, and among them there are 50 high coverage genomes (17-36x), but there are also samples with a coverage similar to the previously published ones.

The FamilyTreeDNA Haplotree team formed by phylogeneticist Michael Sager and Göran Runfeldt from the R&D team has analyzed all 129 males for Y-SNP calls, using – and updating with them – … Read the rest “Y-DNA of 129 high quality shotgun ancient samples”

R1b in Eastern Arabia Late Neolithic / Bronze Age

ras-al-hamra-221-portada

A reader asked my opinion about my reported R1b subclade of one low quality sample from Ra’s Al-Ḥamrāʾ 5 necropolis, Muscat (Oman), published (without Y-DNA) in Harney et al. (2020). For those interested, here are the relevant calls, with information on the graves taken from Salvatori (2007):

I11919_I11920_I11921: Grave 221 (ca. 3700-3200 BC), mtDNA H2a2a1, Y-DNA R1bL754 (xPH155; xL389P297M269; xPF6323PF6292).
* The samples show a straightforward path (but full of deamination question marks): CT (with 1 ancestral call M5813 1x C-A) -PP295M45P284P226 -KM526YSC0000186 … Read the rest “R1b in Eastern Arabia Late Neolithic / Bronze Age”

Neolithic spread of “Eurasian” Lactase Persistence among Saharan pastoralists

lactase-persistence-total-africa

New paper (behind paywall) Sahelian pastoralism from the perspective of variants associated with lactase persistence, by Priehodová et al. Am J Phys Anthropol (2020) e24116.

Interesting excerpts from the discussion (emphasis mine, minor modifications for clarity):

Our investigation of LP variant frequencies revealed new and interesting results related to the origins of pastoralism and subsequent gene flow between pastoralists and farmers in the Sahel/Savannah belt of Africa.

  • We observed a clear distinction between regions west and east of Lake Chad: while variant −13910*T prevails in the western Sahel, where we found it only in pastoralists such as the Fulani,
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Epigravettian migrations 3,000 years before Villabruna

epigravettian-magdalenian-tagliente

Open access Early Alpine human occupation backdates westward human migration in Late Glacial Europe, by Bortolini et al. bioRxiv (2020).

Interesting excerpts (emphasis mine):

To understand the full extent of the role played by demic processes in this key transition in Late Glacial Europe we focused on the left hemimandible of an individual found at Riparo Tagliente (Tagliente2) associated with Late Epigravettian evidence. During the LGM and the Late Glacial, the Adriatic Sea basin played a critical role in shaping the economy and mobility of Epigravettian groups. Geomorphological and sedimentological processes linked to the extension of Alpine glaciers and

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RISE1.SG, R1b from Poland CWC, a likely mislabelled Balto-Slav

bronze-age-unetice-trzciniec-iwno-mierzanowice-

When I started ruminating in 2016 over the apparent differences between populations that kept the two-velar distinction of Indo-Tocharian, and the only two unrelated dialectal groups that showed a strong satemization trend, I believed that – much like in modern times – there would be no clear-cut division in terms of ancestry or Y-DNA haplogroups between neighbouring forest-steppe and steppe populations.

The answer to the question of interacting ethnolinguistic groups had to lie, as everything else, on the investigation of fine-scale population movements that must have put Uralic-speaking peoples as the main substratum of Balto-Slavic and Indo-Iranian.

Still, … Read the rest “RISE1.SG, R1b from Poland CWC, a likely mislabelled Balto-Slav”

Demic vs. cultural diffusion and patrilineal Megalithic societies

neolithic-expansion-map

Recent paper A dynastic elite in monumental Neolithic society, by Cassidy et al. Nature (2020) 582:384–388.

Interesting excerpts (emphasis mine):

Neolithic Admixture

We sampled remains from all of the major Irish Neolithic funerary traditions: court tombs, portal tombs, passage tombs, Linkardstown-type burials and natural sites. Within this dataset, the earliest Neolithic human remains from the island—interred at Poulnabrone portal tomb14—are of majority ‘Early_Farmer’ ancestry (as defined by ADMIXTURE modelling), and show no evidence of inbreeding, which implies that, from the very onset, agriculture was accompanied by large-scale maritime colonization. Our ADMIXTURE and ChromoPainter analyses do not distinguish between

… Read the rest “Demic vs. cultural diffusion and patrilineal Megalithic societies”