Nrken19 Profile picture
Jun 14, 2022 6 tweets 2 min read Read on X
Comparison between G25 and Fst as way of determining genetic distances for Yamnaya_Samara between ancient and modern populations.

1. Fst. Image
2. Fst. Image
3. Fst. Image
1. G25 modern. Image
2. G25. Ancient. Image

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More from @nrken19

Apr 12
399 shotgun genomes from the Royal Basilica of Szekesfehervar.

"Genomic landscape of the medieval Hungarian elite from the Szekesfehervar royal necropolis"

biorxiv.org/content/10.648…Image
Eastern ancestry largely derived from conquering Hungarians Image
A total of 164 genomes showed significant eastern affinity, with most (n = 144) modeled from Conq_Asia_Core (Figure 3A). Image
Read 6 tweets
Apr 9
Polish nobility. The Piasts were one of the royal dynasties that shaped the political structure of medieval Europe in the 10th century AD.

The Y haplogroup lineage identified in the Piasts is (R1b-BY3549). Also the determination of mtDNA for more than 200 historical figures from 10 European royal dynasties.

“Genetic genealogy of the Piast dynasty and related European royal families”

nature.com/articles/s4146…
“a Shows a portion of the Piast family tree with all 21 male members of the dynasty reported to be buried in Płock and Warsaw (purple blocks). The individuals who also belong to this portion of the family tree and were buried elsewhere or at an unknown location are shown as white blocks. For each of the Piasts, his or her historical name, date of death, and age at death (in parentheses) are shown.

b Presents selected results of our anthropological and genomic analyses of 17 skeletal remains found in Płock and Warsaw. For each individual, we showed the mean radiocarbon date (14C), estimated skeletal age (ESA), mt-hg, Y-hg, and if their name was determined earlier by other researchers, their identity. c (Pink) shows the kinships among the 17 examined individuals that we determined on the basis of the obtained genome-wide data. The data in (a, b) are coloured based on the four subsets of 21 historical Piasts/17 skeletal remains (PIAST01-17) we determined: Piast of Płock-1 (PP-1, orange), Piast of Płock-2 (PP-2, green), Piast of Płock-3 (PP-3, yellow) and Piast of Warsaw (PW, blue).”Image
“This figure, similarly to a in Fig. 2, presents a portion of the Piast family tree including all of the male members of the dynasty buried in Płock and Warsaw. For each Piast, his historical name, date of death, and age at death (in parentheses) are shown. The ten Piasts to whom we were able to assign skeletal remains with very high probability (assignment confirmed by historical data, 14C, ESA, Y-hg, and kinship) or high probability (assignment confirmed by historical data, 14C, ESA, and Y-hg) are highlighted in green and grey, respectively. The identification numbers of the assigned skeletal remains are shown below each individual’s name. Yellow blocks indicate dynasty members who could be assigned the Piast-specific Y-hg lineage because the data obtained for their direct descendants and/or ancestors indicated that the male line was unbroken. Grey, blue, or red triangles next to an individual’s name indicate R/R1, R1a, or R1b Y-hg, respectively”Image
Read 5 tweets
Apr 6
This study clarified the population structure of Y haplogroups in the Slavic population of European Russia.

“Biochip for Determination of 92 Human Y-Chromosome Haplogroups by SNP Markers and Frequency Distribution of These Haplogroups in Slavic Population of European Russia”

link.springer.com/article/10.113…
“The haplogroup I-U179 is a West European haplogroup and has two distribution foci, North European countries (27‒48%) with carriers of the subclade I1-M253 and Balkan countries (30‒47%) with carriers of the subclades I2-M438. I1-M253 is sufficiently common in Estonia (15%). Its two downstream subclades, I1a1-Z2336 and I1a2-Z58, were included in the panel. The haplogroup I2 is widespread in Ukraine (13%), Belarus (7%), and Russia (5%). Three down-stream subclades of the haplogroup were selected for the panel: I2a1a-S2648, I2a1b-M436, and I2a2-L596.”
“The haplogroup N-M231 is widespread in North Eurasia, mostly in Finland (61%), Yakutia (83%), Karelia (63%), Baltic countries (18‒42%), and Mongolia (10%). Its frequency in Russia is approximately 15%. N-N1-N1a is its major line and is divided into N1a1-L395 and N1a2-CTS10075. Of the subclades downstream of N1a1-L395, N1a1a1a1a1-CTS10760 and N1a1a1a1a2-CTS10082 were selected for the panel.”
Read 5 tweets
Jan 15
450 ancient Asian genomes trace the most recent common ancestor of the Qiang to ancient Yellow River farmers ~5300 years ago, indicating shared ancestry with other Chinese populations.

"Ancient Yellow River ancestry and divergent admixture histories in the Qiang people"

science.org/doi/10.1126/sc…Image
ADMIXTURE inference of the ancestral makeup of Qiang_H, Qiang_T and other Eurasian populations. Image
Great illustration. Genetic origin of the Qiang people.

(D) A possible demographic model of the Qiang population. Ancestry proportions were estimated using MultiWaveX and rescaled after incorporating ancient and private ancestry into the model Image
Read 5 tweets
Jan 10
Multidisciplinary analysis reveals genetic heterogeneity and millet farmer ancestry in late Xianbei individuals

sciencedirect.com/science/articl…Image
Fig. 1. The geographic location and time period of the SHJ site (A) Geographic location of the SHJ site and published relevant sites; (B) Timeline of the SHJ site's use during the mid-Pingcheng period of the Northern Wei Dynasty. Image
Genetic structure and affinities of the SHJ individuals

(A) Principal component analysis (PCA) showing the genetic variation of SHJ individuals projected onto present-day Eurasian populations;

(B) Outgroup f3-statistics showing that SHJM42-1 shares the most genetic drift with Steppe-related groups;

(C) f4-statistics (f4 (Mbuti, X; SHJ-g1, SHJ-g2)) indicate that SHJ-g1 individuals share more ancestry with East Asian populations than SHJ-g2.Image
Read 8 tweets
Jan 9
Xiongnu armored cavalry, middle of the 1st century BC beginning of the 1st century AD (reconstruction by V. V. Gorbunov, drawing by G. L. Nekhvedavichyus Image
Warrior’s armor and bladed weapons of Xiongnu: 1—6 — armor plates; 7 — armor; 8 — helmet; 9 — sword; 10 — belt buckle; 11—13 — belt distributors; 14 — dagger (1—6 — after Эрдэнэбаатар и др. 2015: Image
V. V. Gorbunov Armored Cavalry of the Xiongnu and Xianbi: Reconstructing Armor and Equipment

psv4.userapi.com/s/v1/d2/2YdwIq…
Read 4 tweets

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