language. R1a The descent of the Kyrgyz from the autochthonous Siberian population is confirmed on the other hand by the recent genetic studies (The Eurasian Heartland: A continental perspective on Y-chromosome diversity). Remarkably, 63% of modern Kyrgyz men share Haplogroup R1a1 (Y-DNA) with Tajiks (64%), Ruthenians (54%), Poles and Hungarians (~60%), and even Icelanders (25%). Haplogroup R1a1 (Y-DNA) is believed to be a marker of the Proto-Indo-European language speakers. R-Z93 (R1a1a1b2) This large subclade appears to encompass most of the R1a1a found in Asia . See also Bamboo Curtain Russian Turkestan Soviet–Afghan War References Further reading External links The Strange State of Soviet Central Asia Alicia Patterson Foundation Reporter Keller, Bill (1989). "Afghan Cadets Reportedly Riot in a Capital in Soviet Central Asia", The New York Times. Kazakh SSR Anthem YouTube Uzbek SSR Anthem YouTube Soviet Language Policy in Central Asia by Mark Dickens Alec Rasizade. Dictators, Islamists, big powers and ordinary people: the new ‘great game’ in Central Asia. = Internationale Politik und Gesellschaft (Bonn: F.Ebert Stiftung), July 2002, number 3, pages 90–106. Post–Russian Empire states Kazakh Soviet Socialist Republic Turkmen Soviet Socialist Republic Tajik Soviet Socialist Republic Kirghiz Soviet Socialist Republic Uzbek Soviet Socialist Republic Communist states Early Soviet republics Former empires in Asia