The dataset of 121 Early Avar-associated individuals provides a substantive view of paternal and maternal lineages in the Carpathian Basin during the Migration Period. Y-chromosome counts are dominated by haplogroup J (29 individuals, ~24%), with smaller counts of N (6, ~5%), R (4, ~3%), E (4, ~3%), and one GHIJK. Maternal lineages show a mix as well: H (15, ~12%) and K (9, ~7%) are typical of European-derived matrilines, while D (12, ~10%), B (6, ~5%), and C (6, ~5%) point toward East Eurasian maternal ancestry.
Interpretation: the coexistence of East Eurasian mtDNA (D, B, C) with Y-lineages such as J and N suggests sex-biased admixture and complex demographic processes. Haplogroup N on the Y-chromosome is often associated with northern and eastern Eurasian paternal ancestry, while J and E can reflect West/Central Asian connections; R lineages may represent local European or steppe-associated inputs. These patterns are consistent with archaeological evidence for incoming steppe-derived groups who integrated with local populations, and possibly with women moving between groups during episodes of migration and alliance formation.
Caveats: although 121 samples afford stronger inference than small series, geographic sampling is concentrated in southern Hungary and may not capture broader regional variation. Some haplogroup counts are low (<10), so conclusions about their frequency and significance remain tentative. Future genome-wide analyses and denser geographic sampling will clarify the timing and source populations for the observed ancestries.