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Sample Information

I6303
I6303
Russia_Samara_Chekalino_4_N
3578 BC
F
Russia
-
Chekalino-4 (Samara Oblast, Sergiyevsky District, Chekalino Village)

Haplogroups

Not determined
U5a2+16294
3645-3528 calBCE (4815±20 BP, PSUAMS-2909)

Ancestry Components

Estimated ancestral proportions from ancient reference populations
EHG
82.6%
Steppe
12.0%
ANE
5.4%

Publication

Lazaridis2024; LazaridisReichNature2025

G25 Coordinates

Download the G25 scaled coordinates for this sample to use in calculators like GEDmatch, Vahaduo, or our own calculators.

Download G25 (.txt)

G25 Ancestry Model Cached

Very Poor · Distance: 0.1118

Model based on Davidski's G25 standard reference populations (nMonte-style optimization).

Yamnaya_RUS_Samara 69.6%
WHG 19.7%
BRA_LapaDoSanto 10.4%
Nganassan 0.3%

Ancient Population Distances

Closest ancient reference populations
China_Xinjiang_Ayituohan_BA_Afanasievo
0.1205
China_Xinjiang_Songshugou_BA_Afanasievo
0.1224
China_Xinjiang_Tuoganbai_BA_Chemurcheck
0.1238
China_Xinjiang_G218_BA_Afanasievo
0.1255
China_Xinjiang_Tuoganbai_BA
0.1261
China_Xinjiang_Bolati_BA_Chemurcheck
0.1313
China_Xinjiang_Ayituohan_BA_Afanasievo
0.1318
China_Xinjiang_Songshugou_BA
0.1322
China_Xinjiang_Ayituohan_BA_Afanasievo
0.1324
China_Xinjiang_Tuoganbai_BA_Chemurcheck
0.1330
China_Xinjiang_Nileke_Afanasievo
0.1337
China_Xinjiang_Tuoganbai_BA
0.1349
China_Xinjiang_Songshugou_BA
0.1368
China_Xinjiang_Ayituohan_BA_Afanasievo
0.1375
China_Xinjiang_G218_BA_Afanasievo
0.1393
China_Xinjiang_Tuoganbai_BA
0.1394
China_Xinjiang_Chaganguole_BA_Chemurcheck
0.1411
Czechia_EBA_CordedWare
0.1435
China_Xinjiang_Tuoganbai_BA
0.1455
China_Xinjiang_Chaganguole_BA_Chemurcheck
0.1458

Modern Population Genetic Proximity

Heatmap based on G25 Euclidean distance to 3,000+ modern populations

Archaeological Site Location

53.8752, 50.9168

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