In archaeogenetics, the term Eastern Hunter-Gatherer (EHG), sometimes East European Hunter-Gatherer, or Eastern European Hunter-Gatherer is the name given to a distinct ancestral component that represents Mesolithic hunter-gatherers of Eastern Europe. [3]
The Eastern Hunter Gatherer genetic profile is mainly derived from Ancient North Eurasian (ANE) ancestry, which was introduced from Siberia, [4] with a secondary and smaller admixture of European Western Hunter-Gatherers (WHG). [5] [6] Still, the relationship between the ANE and EHG ancestral components is not yet well understood due to lack of samples that could bridge the spatiotemporal gap. [5]
During the Mesolithic, the EHGs inhabited an area stretching from the Baltic Sea to the Urals and downwards to the Pontic–Caspian steppe. [7] Along with Scandinavian Hunter-Gatherers (SHG) and Western Hunter-Gatherers (WHG), the EHGs constituted one of the three main genetic groups in the postglacial period of early Holocene Europe. [8] The border between WHGs and EHGs ran roughly from the lower Danube, northward along the western forests of the Dnieper towards the western Baltic Sea. [9]
During the Neolithic and early Eneolithic, likely during the 4th millennium BC EHGs on the Pontic–Caspian steppe mixed with Caucasus hunter-gatherers (CHGs) with the resulting population, almost half-EHG and half-CHG, forming the genetic cluster known as Western Steppe Herder (WSH). [10] [11] [12] WSH populations closely related to the people of the Yamnaya culture are supposed to have embarked on a massive migration leading to the spread of Indo-European languages throughout large parts of Eurasia.
Haak et al. (2015) identified the Eastern Hunter-Gatherers (EHG) as a distinct genetic cluster in two males only. The EHG male of Samara (dated to ca. 5650-5550 BC) carried Y-haplogroup R1b1a1a* and mt-haplogroup U5a1d. The other EHG male, buried in Karelia (dated to ca. 5500-5000 BC) carried Y-haplogroup R1a1 and mt-haplogoup C1g. The authors of the study also identified a Western Hunter-Gatherer (WHG) cluster and a Scandinavian Hunter-Gatherer (SHG) cluster, intermediate between WHG and EHG. [lower-alpha 1] They suggested that EHGs harbored mixed ancestry from Ancient North Eurasians (ANEs) and WHGs. [14]
Researchers have proposed various admixture proportion models for EHGs from WHGs and ANEs. [16] [17] Posth et al. (2023) found that most EHG individuals carried c. 70% ANE ancestry and c. 30% WHG ancestry The WHG-like ancestry was most likely not derived from the Oberkassel and Villabruna clusters directly, but from a related and yet unsampled Epigravettian population. [2] [18] The high contribution from Ancient North Eurasians is also visible in a subtle affinity of the EHG to the 40,000-year-old Tianyuan man from Northern China, which can be explained by geneflow from a Tianyuan-related source into the ANE lineage (represented by Malta and Afontova Gora 3), which later substantially contributed to the formation of the EHG. [19] The EHGs (Sidelkino) are estimated to carry around 9,4% Tianyuan-like ancestry via their Ancient North Eurasian heritage. [20]
The formation of the EHG ancestral component is estimated to have happened 13,000–15,000 years BP. [18] EHG associated remains belonged primarily to the human Y-chromosome haplogroups R1, with a lower frequency of haplogroup J and Q. Their mitochondrial chromosomes belonged primarily to haplogroup U2, U4, U5, as well as C1 and R1b. [2]
EHGs may have mixed with "an Armenian-like Near Eastern source", which formed the Yamnaya culture, as early as the Eneolithic (5200-4000 BC). [21] The people of the Yamnaya culture were found to be a mix of EHG and a "Near Eastern related population". During the 3rd millennium BC, the Yamnaya people embarked on a massive expansion throughout Europe, which significantly altered the genetic landscape of the continent. The expansion gave rise to cultures such as Corded Ware, and was possibly the source of the distribution of Indo-European languages in Europe. [14]
The people of the Mesolithic Kunda culture and the Narva culture of the eastern Baltic were a mix of WHG and EHG, showing the closest affinity with WHG. Samples from the Ukrainian Mesolithic and Neolithic were found to cluster tightly together between WHG and EHG, suggesting genetic continuity in the Dnieper Rapids for a period of 4,000 years. The Ukrainian samples belonged exclusively to the maternal haplogroup U, which is found in around 80% of all European hunter-gatherer samples. [22]
The people of the Pit–Comb Ware culture (PCW/CCC) of the eastern Baltic bear 65% EHG ancestry. This is in contrast to earlier hunter-gatherers in the area, who were more closely related to WHG. This was demonstrated using a sample of Y-DNA extracted from a Pit–Comb Ware individual. This belonged to R1a15-YP172. The four samples of mtDNA extracted constituted two samples of U5b1d1, one sample of U5a2d, and one sample of U4a. [23]
Günther et al. (2018) analyzed 13 SHGs and found all of them to be of EHG ancestry. Generally, SHGs from western and northern Scandinavia had more EHG ancestry (ca 49%) than individuals from eastern Scandinavia (ca. 38%). The authors suggested that the SHGs were a mix of WHGs who had migrated into Scandinavia from the south, and EHGs who had later migrated into Scandinavia from the northeast along the Norwegian coast. SHGs displayed higher frequences of genetic variants that cause light skin (SLC45A2 and SLC24A5), and light eyes (OCA/Herc2), than WHGs and EHGs. [24]
Members of the Kunda culture and Narva culture were also found to be more closely related with WHG, while the Pit–Comb Ware culture was more closely related to EHG. Northern and eastern areas of the eastern Baltic were found to be more closely related to EHG than southern areas. The study noted that EHGs, like SHGs and Baltic hunter-gatherers, carried high frequencies of the derived alleles for SLC24A5 and SLC45A2, which are codings for light skin. [26]
Mathieson et al. (2018) analyzed the genetics of a large number of skeletons of prehistoric Eastern Europe. Thirty-seven samples were from Mesolithic and Neolithic Ukraine (9500-6000 BC). These were classified as intermediate between EHG and SHG. The males belonged exclusively to R haplotypes (particularly subclades of R1b1 and R1a) and I haplotypes (particularly subclades of I2). Mitochondrial DNA belonged almost exclusively to U (particularly subclades of U5 and U4). [21]
A large number of individuals from the Zvejnieki burial ground, which mostly belonged to the Kunda culture and Narva culture in the eastern Baltic, were analyzed. These individuals were mostly of WHG descent in the earlier phases, but over time EHG ancestry became predominant. The Y-DNA of this site belonged almost exclusively to haplotypes of haplogroup R1b1a1a and I2a1. The mtDNA belonged exclusively to haplogroup U (particularly subclades of U2, U4 and U5). [21]
Forty individuals from three sites of the Iron Gates Mesolithic in the Balkans were estimated to be of 85% WHG and 15% EHG descent. The males at these sites carried exclusively R1b1a and I (mostly subclades of I2a) haplotypes. mtDNA belonged mostly to U (particularly subclades of U5 and U4). [21]
People of the Cucuteni–Trypillia culture were found to harbor about 20% hunter-gatherer ancestry, which was intermediate between EHG and WHG. [21]
Narasimshan et al. (2019) coined a new ancestral component, West Siberian Hunter-Gatherer (WSHG). WSHGs contained about 20% EHG ancestry, 73% ANE ancestry, and 6% East Asian ancestry. [27]
The EHG have been argued by some to represent a possible source for the Pre-Proto-Indo-European language (see also Father Tongue hypothesis). Unlike the Yamnaya culture people (or closely related groups), which are associated with speakers of Proto-Indo-European, the EHG-rich Dnieper–Donets culture people show no evidence of Caucasus Hunter-Gatherer (CHG) or Early European Farmer (EEF) ancestry. [28] Both Dnieper-Donets males and Yamnaya males carry the same paternal haplogroups (R1b and I2a), suggesting that the CHG and EEF admixture among the Yamnaya came through EHG males mixing with EEF and CHG females. Based on this, David W. Anthony, this suggests that the Indo-European languages were initially spoken by EHGs living in Eastern Europe. [29]
Others have suggested that the Indo-European language family may have originated not in Eastern Europe, but among CHG-rich West Asian populations South of the Caucasus which later absorbed EHG-rich groups North of the Caucasus. It was noted that haplogroups may not correlate with autosomal ancestry components and historical language dispersals. [30]
The EHGs are suggested to have had mostly brown eyes and light skin, [24] [32] with "intermediate frequencies of the blue-eye variants" and "high frequencies of the light-skin variants." [33] An EHG from Karelia was determined by Günther (2018) to have high probabilities of being brown-eyed and dark haired, with a predicted intermediate skin tone. [34] Another EHG from Samara was predicted to be light skinned, and was determined to have a high probability of being blue-eyed with a light hair shade, with a 75% calculated probability of being blond-haired. [35] [33]
The rs12821256 allele of the KITLG gene that controls melanocyte development and melanin synthesis, [36] which is associated with blond hair and first found in an individual from Siberia dated to around 17,000 BP, is found in three Eastern Hunter-Gatherers from Samara, Motala and Ukraine c. 10,000 BP, suggesting that this allele originated in the Ancient North Eurasian population, before spreading to western Eurasia. [37]
Many remains of East Hunter-Gatherers dated to circa 8,100 BP (6,100 BCE) have also been excavated at Yuzhny Oleny island in Lake Onega. [38] The Ancient North Eurasian (ANE) ancestry is by far the main component of the Yuzhny Oleny group, and is among the highest within the rest of the Eastern Hunter-Gatherers (EHG). [4]
As hunter-gatherers, the EHGs initially relied on stone tools and artifacts derived from ivory, horns or antlers. From circa 5,900 BC, they started to adopt pottery in the area of the northern Caspian Sea, or possibly from beyond the Ural. In barely three or four centuries, pottery spread over a distance of about 3,000 kilometers, reaching as far as the Baltic Sea. This technological spread was much faster than the spread of agriculture itself, and mainly occurred through technology transfer between hunter-gatherer groups, rather than through the demic diffusion of agriculturalist. [41]
The Balts or Baltic peoples are a group of peoples inhabiting the eastern coast of the Baltic Sea who speak Baltic languages. Among the Baltic peoples are modern-day Lithuanians and Latvians — all East Balts — as well as the Old Prussians, Curonians, Sudovians, Skalvians, Yotvingians and Galindians — the West Balts — whose languages and cultures are now extinct.
The Proto-Indo-Europeans are a hypothetical prehistoric ethnolinguistic group of Eurasia who spoke Proto-Indo-European (PIE), the reconstructed common ancestor of the Indo-European language family.
The Yamnaya culture or the Yamna culture, also known as the Pit Grave culture or Ochre Grave culture, is a late Copper Age to early Bronze Age archaeological culture of the region between the Southern Bug, Dniester, and Ural rivers, dating to 3300–2600 BCE. It was discovered by Vasily Gorodtsov following his archaeological excavations near the Donets River in 1901–1903. Its name derives from its characteristic burial tradition: Я́мная is a Russian adjective that means 'related to pits ', as these people used to bury their dead in tumuli (kurgans) containing simple pit chambers.
The Sredny Stog culture or Serednii Stih culture is a pre-Kurgan archaeological culture from the 5th–4th millennia BC. It is named after the Dnieper river islet of today's Serednii Stih, Ukraine, where it was first located.
The Khvalynsk culture is a Middle Copper Age Eneolithic culture of the middle Volga region. It takes its name from Khvalynsk in Saratov Oblast. The Khvalynsk culture is found from the Samara Bend in the north to the North Caucasus in the south, from the Sea of Azov in the west to the Ural River in the east. It was preceded by the Early Eneolithic Samara culture.
The Dnieper–Donets culture complex (DDCC) is a Mesolithic and later Neolithic archaeological culture found north of the Black Sea and dating to ca. 5000-4200 BC. It has many parallels with the Samara culture, and was succeeded by the Sredny Stog culture.
The Narva culture or eastern Baltic was a European Neolithic archaeological culture in present-day Estonia, Latvia, Lithuania, Kaliningrad Oblast, and adjacent portions of Poland, Belarus and Russia. A successor of the Mesolithic Kunda culture, the Narva culture continued up to the start of the Bronze Age. The culture spanned from c. 5300 to 1750 BC. The technology was that of hunter-gatherers. The culture was named after the Narva River in Estonia.
The genetic history of Europe includes information around the formation, ethnogenesis, and other DNA-specific information about populations indigenous, or living in Europe.
The Armenian hypothesis, also known as the Near Eastern model, is a theory of the Proto-Indo-European homeland, initially proposed by linguists Tamaz V. Gamkrelidze and Vyacheslav Ivanov in the early 1980s, which suggests that the Proto-Indo-European language was spoken during the 5th–4th millennia BC in "eastern Anatolia, the southern Caucasus, and northern Mesopotamia".
The Kunda culture, which originated from the Swiderian culture, comprised Mesolithic hunter-gatherer communities of the Baltic forest zone extending eastwards through Latvia into northern Russia, dating to the period 8500–5000 BC according to calibrated radiocarbon dating. It is named after the Estonian town of Kunda, about 110 kilometres (70 mi) east of Tallinn along the Gulf of Finland, near where the first extensively studied settlement was discovered on Lammasmäe Hill and in the surrounding peat bog. The oldest known settlement of the Kunda culture in Estonia is Pulli. The Kunda culture was succeeded by the Narva culture, who used pottery and showed some traces of food production.
The Proto-Indo-European homeland was the prehistoric linguistic homeland of the Proto-Indo-European language (PIE). From this region, its speakers migrated east and west, and went on to form the proto-communities of the different branches of the Indo-European language family.
Afontova Gora is a Late Upper Paleolithic and Mesolithic Siberian complex of archaeological sites located on the left bank of the Yenisey River near the city of Krasnoyarsk, Russia. Afontova Gora has cultural and genetic links to the people from Mal'ta–Buret'. The complex was first excavated in 1884 by Ivan Savenkov.
In archaeogenetics, the term Ancient North Eurasian (ANE) is the name given to an ancestral component that represents the lineage of the people of the Mal'ta–Buret' culture and populations closely related to them, such as the Upper Paleolithic individuals from Afontova Gora in Siberia. Genetic studies also revealed that the ANE are closely related to the remains of the preceding Yana Culture, which were dubbed as 'Ancient North Siberians' (ANS), and which either are directly ancestral to the ANE, or both being closely related sister lineages, sharing a common ancestral source population. The Ancient North Eurasians are deeply related to Paleolithic and Mesolithic European hunter-gatherers, but also derive a significant amount of their ancestry from a deep East Eurasian source, which they received in Siberia. Their 'Ancient West Eurasian' ancestry is represented by a lineage closer to Kostenki-14, while their 'Ancient East Eurasian' ancestry is represented by a lineage closer to the Tianyuan man.
Early European Farmers (EEF), First European Farmers, Neolithic European Farmers, Ancient Aegean Farmers, or Anatolian Neolithic Farmers are names used to describe a distinct group of early Neolithic farmers who brought agriculture to Europe and Northwest Africa (Maghreb). Although the spread of agriculture from the Middle East to Europe has long been recognised through archaeology, it is only recent advances in archaeogenetics that have confirmed that this spread was strongly correlated with a migration of these farmers, and was not just a cultural exchange.
In archaeogenetics, the term Western Hunter-Gatherer is the name given to a distinct ancestral component of modern Europeans, representing descent from a population of Mesolithic hunter-gatherers who scattered over Western, Southern and Central Europe, from the British Isles in the west to the Carpathians in the east, following the retreat of the ice sheet of the Last Glacial Maximum. It is closely associated and sometimes considered synonymous with the concept of the Villabruna cluster, named after Ripari Villabruna cave in Italy, known from the terminal Pleistocene of Europe, which is largely ancestral to later WHG populations.
Caucasus hunter-gatherer (CHG), also called Satsurblia cluster, is an anatomically modern human genetic lineage, first identified in a 2015 study, based on the population genetics of several modern Western Eurasian populations.
Basal Eurasian is a proposed lineage of anatomically modern humans with reduced, or zero, archaic hominin (Neanderthal) admixture compared to other ancient non-Africans. Basal Eurasians represent a sister lineage to other Eurasians and may have originated from the Southern Middle East, specifically the Arabian peninsula, or North Africa, and are said to have contributed ancestry to various West Eurasian, South Asian, and Central Asian as well as African groups. This Basal Eurasian component is also proposed to explain the lower archaic admixture among modern West Eurasians compared to with East Eurasians, although alternatives without the need of such Basal admixture exist as well.
In archaeogenetics, the term Scandinavian Hunter-Gatherer (SHG) is the name given to a distinct ancestral component that represents descent from Mesolithic hunter-gatherers of Scandinavia. Genetic studies suggest that the SHGs were a mix of Western Hunter-Gatherers (WHGs) initially populating Scandinavia from the south during the Holocene, and Eastern Hunter-Gatherers (EHGs), who later entered Scandinavia from the north along the Norwegian coast. During the Neolithic, they admixed further with Early European Farmers (EEFs) and Western Steppe Herders (WSHs). Genetic continuity has been detected between the SHGs and members of the Pitted Ware culture (PWC), and to a certain degree, between SHGs and modern northern Europeans. The Sámi, on the other hand, have been found to be completely unrelated to the PWC.
In archaeogenetics, the term Western Steppe Herders (WSH), or Western Steppe Pastoralists, is the name given to a distinct ancestral component first identified in individuals from the Chalcolithic steppe around the turn of the 5th millennium BC, subsequently detected in several genetically similar or directly related ancient populations including the Khvalynsk, Repin, Sredny Stog, and Yamnaya cultures, and found in substantial levels in contemporary European, Central Asian, South Asian and West Asian populations. This ancestry is often referred to as Yamnaya ancestry, Yamnaya-related ancestry, Steppe ancestry or Steppe-related ancestry.
Yuzhny Oleny, also Yuzhniy Oleniy, is an archaeological site located on Yuzhny Oleny island, in Lake Onega, Karelia.
ANE makes up the principal share of the EHG (Eastern Hunter-Gatherer) autosomal component, whose content is especially high in the genomes of Mesolithic and Early Neolithic inhabitants of northeastern Europe buried at Yuzhny Oleny Ostrov, Popovo, Sidelkino, Lebyazhinka IV, etc. (Haak et al., 2015; Damgaard et al., 2018). They passed EHG on to the Yamnaya people, from whom it was inherited by several filial populations, including Afanasyevans. As early as the Mesolithic, EHG was introduced from northern Russia to Scandinavia, as evidenced by genomes of the Motala people in southern Sweden. Their ancestors had migrated there from the east along the coast of Norway, because the share of EHG in more southern populations, such as the earlier Kunda people of the eastern Baltic, is lower (Haak et al., 2015; Mittnik et al., 2018).
Haak et al. (2015): 38–40% ANE (MA-1), 60–62% WHG (Fig S8.6). (Alternative topologies where EHG and ANE are unadmixed sister lineages, with WHG being admixed, are not rejected)
Currently, the strongest affinity to Tianyuan in Holocene European HGs was reported for Eastern European HGs (EHG). This is because the ancestry found in Mal'ta and Afontova Gora individuals (Ancient North Eurasian ancestry) received ancestry from UP East Asian/Southeast Asian populations54, who then contributed substantially to EHG55.
We then modeled gene flow from the lineage leading to CHB to the EEHG at 9.4% (95% CI 4.4%–14.7%).
ANE makes up the principal share of the EHG (Eastern Hunter-Gatherer) autosomal component, whose content is especially high in the genomes of Mesolithic and Early Neolithic inhabitants of northeastern Europe buried at Yuzhny Oleny Ostrov, Popovo, Sidelkino, Lebyazhinka IV, etc. (Haak et al., 2015; Damgaard et al., 2018).", "Mesolithic, northern Russian Plain, Yuzhny Oleny Ostrov (Alekseyev, Gokhman, 1984)
Although demic diffusion may have a role, on the basis of its speed we argue that pottery production was rapidly disseminated through knowledge transfer across established networks between dispersed hunter-gatherer communities