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- البلغار جزء من المجموعة العرقية اللغوية السلافية نتيجة هجرات القبائل السلافية إلى المنطقة منذ القرن السادس الميلادي والاستيعاب اللغوي اللاحق للسكان الآخرين. إن ظاهرة الطبقات الجينية المتميزة في الغرب والشرق والجنوب السلاف تعني ضمناً عدة آليات، بما في ذلك الاستيعاب الثقافي للسكان الأصليين من قبل حاملي اللغات السلافية كآلية رئيسية لانتشار اللغات السلافية إلى شبه جزيرة البلقان. حوالي 55٪ من الإرث الجيني البلغاري هو متوسطي، نصفه تقريبًا يشبه القوقاز والشرق الأوسط وبدرجة أقل علم الوراثة في شمال إفريقيا. من خلال الجمع بين جميع خطوط الأدلة، يُقترح أن الجزء الأكبر من التباين الجيني داخل Balto-Slavic يمكن أن يُعزى بشكل أساسي إلى استيعاب المكونات الجينية الإقليمية الموجودة مسبقًا، والتي تختلف بالنسبة للشعوب الغربية والشرقية والجنوبية الناطقة بالسلافية. (ar)
- The Bulgarians are part of the Slavic ethnolinguistic group as a result of migrations of Slavic tribes to the region since the 6th century AD and the subsequent linguistic assimilation of other populations. Hellenthal et al, 2014 estimated from data of 94 modern populations a couple of analyses on Bulgarians inferred from an admixture event in 1000-1600 YBP between a Slavic and a Cypriot donor group: to a Polish donor group Bulgarians are of an estimated 59% Polish-like and 41% Cypriot-like admixture; to a Belarusian, Bulgarians are of 46% Belorussian-like and 54% Cypriot-like admixture. Early gene flows between southeastern and eastern Europe make it difficult to obtain a correct estimate, although young enough identical by descent segments confirmed such connection and that the East and West Slavs share more identical by descent segments with South Slavs than with Greeks, inter-Slavic populations (a group of Romanians, Gagauz), but less with Balts, while the South Slavs share similar number with East and West Slavs, but fewer with Greeks. The phenomenon of distinct genetic substrata in the West, East, and South Slavs would imply several mechanisms, including cultural assimilation of indigenous populations by bearers of Slavic languages as a major mechanism of the spread of Slavic languages to the Balkan Peninsula. About 55% of the Bulgarian autosomal genetic legacy is Mediterranean, about the half of which resembles the Caucasian, Middle Eastern and to a lesser extent the North African genetics. Combining all lines of evidence, it is suggested that the major part of the within-Balto-Slavic genetic variation can be mainly attributed to the assimilation of the pre-existing regional genetic components, which differ for West, East and South Slavic-speaking peoples. Around 4% of Bulgarian genes are derived outside of Europe and the Middle East or are of undetermined origin (by 858 CE), of which 2.3% are from Northeast Asia and correspond to Asian tribes such as Bulgars, a consistent very low frequency for Eastern Europe as far as Uralic-speaking Hungarians. The percentage, however, may vary by regions as the less numerous Bulgars were concentrated around the northeast, failing to settle throughout the country's numerous tribes as the significant donor tribes. (en)
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