Tautalus
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This paper presents a comprehensive meta-analysis of all currently available genome-wide ancient DNA from the Northern Black Sea region during the 1st millennium CE. The authors systematically review and reanalyze 48 published genomes belonging to the Late Scythian, Sarmatian, Alan, Bulgar, Saltovo-Mayaki, and Chernyakhov cultures using PCA, ADMIXTURE and previously published qpAdm results. Their objective is to reconstruct the demographic history of one of Eurasia's most important migration corridors.
The study concludes that the Northern Black Sea region should not be viewed as a succession of isolated archaeological cultures, but rather as a long lasting contact zone shaped by repeated migrations, episodes of population replacement and periods of local genetic continuity. Some cultural transitions preserved substantial ancestry from preceding populations, whereas others involved the arrival of genetically distinct groups.
The available genomes reveal that the Late Scythians were genetically heterogeneous. One individual from Crimea showed strong continuity with earlier local Scythians while carrying an unusually large Anatolian related component, whereas another was genetically closer to earlier Pontic Scythians but possessed additional ancient Siberian ancestry. The study therefore rejects the idea of a genetically uniform Late Scythian population.
The Sarmatian expansion is interpreted as one of the clearest examples of large scale migration in the region. Sarmatians from the Carpathian Basin, Romania, the Urals and Central Asia were genetically very similar despite the vast geographical distances separating them. Long shared chromosomal segments demonstrate recent common ancestry and extensive mobility across the Eurasian steppe. At the same time, these Sarmatians shared remarkably little ancestry with the earlier Scythian populations they replaced, indicating substantial demographic replacement rather than gradual assimilation.
The Alans display a complex and heterogeneous genetic structure composed of varying proportions of steppe, North Caucasian and Central Asian ancestry. The earliest Alan individual analyzed is genetically close to the Sarmatians, supporting the hypothesis that the Alans emerged from Sarmatian populations. Later Alan groups, however, became progressively more similar to indigenous Caucasian populations while still retaining varying degrees of steppe ancestry.
The Bulgar genomes show strong genetic similarity to contemporaneous Alans and other representatives of the Saltovo-Mayaki culture. These groups all contain important Caucasian ancestry together with varying Central Asian and East Eurasian contributions, suggesting either a common origin or prolonged interaction between closely related populations. Archaeological interpretations linking these groups are therefore supported by the genetic evidence.
The Chernyakhov culture emerges as one of the most genetically diverse populations analyzed. Rather than forming a single homogeneous group, its individuals belong to at least three distinct genetic clusters, most closely related to Central European, Balkan and Thracian like populations. The authors also identify preliminary evidence for genetic continuity between one component of the Chernyakhov population and later early Slavic groups based on both autosomal analyses and shared mitochondrial lineages.
The combined meta-analysis confirms that Late Scythians and Sarmatians occupy an intermediate position between European and Caucasian populations, while the Sarmatians themselves form a clearly distinguishable genetic cluster. Alans and Bulgars exhibit pronounced internal diversity, with several individuals shifted toward Central or East Asian populations. In contrast, Chernyakhov individuals remain predominantly European despite their internal heterogeneity. The ADMIXTURE analysis further shows that the Alans and Bulgars possess stronger Caucasus Hunter-Gatherer and Iranian related ancestry, whereas Chernyakhov individuals retain higher proportions of Anatolian Neolithic and European hunter-gatherer ancestry.
Analysis of maternal and paternal lineages supports these autosomal results. Late Scythians are dominated by western Eurasian mitochondrial haplogroups, whereas Sarmatians introduce East Asian maternal lineages, and the Alans and Bulgars display additional East Eurasian haplogroups reflecting Central and East Asian ancestry. The Y-chromosome data similarly reveal increasing diversity through time. While R1a and R1b remain dominant throughout the region, Alans also carry Q and C2 lineages associated with Central and East Asia, whereas Bulgars are mainly represented by R1a lineages and Chernyakhov individuals include both R1a and E1b haplogroups.
The authors conclude that the first millennium CE in the Northern Black Sea region was characterized by repeated migrations rather than simple cultural diffusion. They identify local continuity among some Late Scythian and Alan populations, clear evidence for large scale Sarmatian migrations, close genetic relationships between Alans, Bulgars and the Saltovo-Mayaki culture, and probable links between parts of the Chernyakhov population and the emergence of early Slavic groups. They also emphasize that many important populations, including Goths, Huns, Bosporan Kingdom inhabitants, Khazars and early Slavs, remain poorly sampled genetically, making additional ancient DNA studies essential for reconstructing the complete demographic history of the region.
AbstractThe study concludes that the Northern Black Sea region should not be viewed as a succession of isolated archaeological cultures, but rather as a long lasting contact zone shaped by repeated migrations, episodes of population replacement and periods of local genetic continuity. Some cultural transitions preserved substantial ancestry from preceding populations, whereas others involved the arrival of genetically distinct groups.
The available genomes reveal that the Late Scythians were genetically heterogeneous. One individual from Crimea showed strong continuity with earlier local Scythians while carrying an unusually large Anatolian related component, whereas another was genetically closer to earlier Pontic Scythians but possessed additional ancient Siberian ancestry. The study therefore rejects the idea of a genetically uniform Late Scythian population.
The Sarmatian expansion is interpreted as one of the clearest examples of large scale migration in the region. Sarmatians from the Carpathian Basin, Romania, the Urals and Central Asia were genetically very similar despite the vast geographical distances separating them. Long shared chromosomal segments demonstrate recent common ancestry and extensive mobility across the Eurasian steppe. At the same time, these Sarmatians shared remarkably little ancestry with the earlier Scythian populations they replaced, indicating substantial demographic replacement rather than gradual assimilation.
The Alans display a complex and heterogeneous genetic structure composed of varying proportions of steppe, North Caucasian and Central Asian ancestry. The earliest Alan individual analyzed is genetically close to the Sarmatians, supporting the hypothesis that the Alans emerged from Sarmatian populations. Later Alan groups, however, became progressively more similar to indigenous Caucasian populations while still retaining varying degrees of steppe ancestry.
The Bulgar genomes show strong genetic similarity to contemporaneous Alans and other representatives of the Saltovo-Mayaki culture. These groups all contain important Caucasian ancestry together with varying Central Asian and East Eurasian contributions, suggesting either a common origin or prolonged interaction between closely related populations. Archaeological interpretations linking these groups are therefore supported by the genetic evidence.
The Chernyakhov culture emerges as one of the most genetically diverse populations analyzed. Rather than forming a single homogeneous group, its individuals belong to at least three distinct genetic clusters, most closely related to Central European, Balkan and Thracian like populations. The authors also identify preliminary evidence for genetic continuity between one component of the Chernyakhov population and later early Slavic groups based on both autosomal analyses and shared mitochondrial lineages.
The combined meta-analysis confirms that Late Scythians and Sarmatians occupy an intermediate position between European and Caucasian populations, while the Sarmatians themselves form a clearly distinguishable genetic cluster. Alans and Bulgars exhibit pronounced internal diversity, with several individuals shifted toward Central or East Asian populations. In contrast, Chernyakhov individuals remain predominantly European despite their internal heterogeneity. The ADMIXTURE analysis further shows that the Alans and Bulgars possess stronger Caucasus Hunter-Gatherer and Iranian related ancestry, whereas Chernyakhov individuals retain higher proportions of Anatolian Neolithic and European hunter-gatherer ancestry.
Analysis of maternal and paternal lineages supports these autosomal results. Late Scythians are dominated by western Eurasian mitochondrial haplogroups, whereas Sarmatians introduce East Asian maternal lineages, and the Alans and Bulgars display additional East Eurasian haplogroups reflecting Central and East Asian ancestry. The Y-chromosome data similarly reveal increasing diversity through time. While R1a and R1b remain dominant throughout the region, Alans also carry Q and C2 lineages associated with Central and East Asia, whereas Bulgars are mainly represented by R1a lineages and Chernyakhov individuals include both R1a and E1b haplogroups.
The authors conclude that the first millennium CE in the Northern Black Sea region was characterized by repeated migrations rather than simple cultural diffusion. They identify local continuity among some Late Scythian and Alan populations, clear evidence for large scale Sarmatian migrations, close genetic relationships between Alans, Bulgars and the Saltovo-Mayaki culture, and probable links between parts of the Chernyakhov population and the emergence of early Slavic groups. They also emphasize that many important populations, including Goths, Huns, Bosporan Kingdom inhabitants, Khazars and early Slavs, remain poorly sampled genetically, making additional ancient DNA studies essential for reconstructing the complete demographic history of the region.
Over the past two decades, the introduction of whole-genome sequencing analysis of ancient DNA has led to a breakthrough in archaeogenetic research, significantly expanding our understanding of human genetic history. In this context the Northern Black Sea region during first millennium CE (1–1,000 CE) is of particular relevance, as it remained a hub of intense cultural exchange and migration. Despite its historical importance, ancient genomic data from this period remains scarce, and a comprehensive synthesis of existing findings is lacking. This study presents a systematic review and meta-analysis of published whole-genome sequencing data from 48 ancient samples associated with key archaeological cultures of the region: Late Scythian, Sarmatian, Alan, Bulgar, Saltovo-Mayaki and Chernyakhov. Through the systematization of data, we trace genetic continuity at Late Scythian and Alanian sites relative to preceding populations. Episodes of large-scale migration and population replacement have been documented, most clearly evident in the Sarmatian expansion of the 1st–4th centuries CE, with genetic traces extending from the Urals to the Carpathians. Based on limited evidence, genetic continuity has been identified between representatives of the Chernyakhov culture and early Slavic groups. Through our meta-analysis, we further detect intercultural connections between the Alans, Bulgars, and bearers of the Saltovo-Mayaki culture, whose genetic structure reveals the influence of Caucasian and East Eurasian components. Collectively, these findings underscore the complex genetic landscape of the region, shaped by successive migration waves and multifaceted intercultural contacts. We conclude by outlining key unresolved questions and future directions for archaeogenetic research in the Northern Black Sea region during the first millennium CE.
pmc.ncbi.nlm.nih.gov
Genetic characterization and meta-analysis of the population of the Northern Black Sea region in the 1st millennium CE based on ancient DNA data - PMC
Over the past two decades, the introduction of whole-genome sequencing analysis of ancient DNA has led to a breakthrough in archaeogenetic research, significantly expanding our understanding of human genetic history. In this context the Northern ...
pmc.ncbi.nlm.nih.gov
Geographic location of the archaeological sites
a) principal component analysis (PCA)
b) population structure analysis (ADMIXTURE) with K = 8 inferred ancestral components.
Component (population) designations: WHG – Western Hunter-Gatherer (9,107–5,986 BC); SHG – Scandinavian Hunter-Gatherer (5,967–5,484 BC); EHG – Eastern Hunter-Gatherer (9,649–5,535 BC); Neolithic_Iran – individuals from Neolithic Iran (8,295–7,976 BC); CHG – Caucasus Hunter-Gatherer (11,961–7,599 BC); Turkey_N – individuals from Neolithic Anatolia (9,656–5,835 BC); Germany_Saxony_LBK_N – individuals of the Linear Pottery culture (5,400–4,900 BC); Israel_Natufian – individuals of the Natufian culture (12,000–9,500 BC); Nganasan – present-day Nganasan individuals (Siberia); Han – present-day Han individuals (China); Karitiana – present-day Karitiana individuals (Brazil); Mbuti – present-day Mbuti individuals (Central Africa).
Component (population) designations: WHG – Western Hunter-Gatherer (9,107–5,986 BC); SHG – Scandinavian Hunter-Gatherer (5,967–5,484 BC); EHG – Eastern Hunter-Gatherer (9,649–5,535 BC); Neolithic_Iran – individuals from Neolithic Iran (8,295–7,976 BC); CHG – Caucasus Hunter-Gatherer (11,961–7,599 BC); Turkey_N – individuals from Neolithic Anatolia (9,656–5,835 BC); Germany_Saxony_LBK_N – individuals of the Linear Pottery culture (5,400–4,900 BC); Israel_Natufian – individuals of the Natufian culture (12,000–9,500 BC); Nganasan – present-day Nganasan individuals (Siberia); Han – present-day Han individuals (China); Karitiana – present-day Karitiana individuals (Brazil); Mbuti – present-day Mbuti individuals (Central Africa).
Distribution of mitochondrial (a) and Y-chromosomal haplogroups (b)
