Landscape genetics and the genetic legacy of Upper Paleolithic and Mesolithic hunter-gatherers in the modern Caucasus

Abstract This study clarifies the role of refugia and landscape permeability in the formation of the current genetic structure of peoples of the Caucasus. We report novel genome-wide data for modern individuals from the Caucasus, and analyze them together with available Paleolithic and Mesolithic in...

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Autores principales:	Alexander Gavashelishvili, Alexey Yanchukov, David Tarkhnishvili, Marine Murtskhvaladze, Irakli Akhvlediani, Ceren Kazancı
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/dfe3b8b508b243ac9f0f13ad500c0eae
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spelling	oai:doaj.org-article:dfe3b8b508b243ac9f0f13ad500c0eae2021-12-02T19:12:29ZLandscape genetics and the genetic legacy of Upper Paleolithic and Mesolithic hunter-gatherers in the modern Caucasus10.1038/s41598-021-97519-62045-2322https://doaj.org/article/dfe3b8b508b243ac9f0f13ad500c0eae2021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97519-6https://doaj.org/toc/2045-2322Abstract This study clarifies the role of refugia and landscape permeability in the formation of the current genetic structure of peoples of the Caucasus. We report novel genome-wide data for modern individuals from the Caucasus, and analyze them together with available Paleolithic and Mesolithic individuals from Eurasia and Africa in order (1) to link the current and ancient genetic structures via landscape permeability, and (2) thus to identify movement paths between the ancient refugial populations and the Caucasus. The ancient genetic ancestry is best explained by landscape permeability implying that human movement is impeded by terrain ruggedness, swamps, glaciers and desert. Major refugial source populations for the modern Caucasus are those of the Caucasus, Anatolia, the Balkans and Siberia. In Rugged areas new genetic signatures take a long time to form, but once they do so, they remain for a long time. These areas act as time capsules harboring genetic signatures of ancient source populations and making it possible to help reconstruct human history based on patterns of variation today.Alexander GavashelishviliAlexey YanchukovDavid TarkhnishviliMarine MurtskhvaladzeIrakli AkhvledianiCeren KazancıNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Alexander Gavashelishvili Alexey Yanchukov David Tarkhnishvili Marine Murtskhvaladze Irakli Akhvlediani Ceren Kazancı Landscape genetics and the genetic legacy of Upper Paleolithic and Mesolithic hunter-gatherers in the modern Caucasus
description	Abstract This study clarifies the role of refugia and landscape permeability in the formation of the current genetic structure of peoples of the Caucasus. We report novel genome-wide data for modern individuals from the Caucasus, and analyze them together with available Paleolithic and Mesolithic individuals from Eurasia and Africa in order (1) to link the current and ancient genetic structures via landscape permeability, and (2) thus to identify movement paths between the ancient refugial populations and the Caucasus. The ancient genetic ancestry is best explained by landscape permeability implying that human movement is impeded by terrain ruggedness, swamps, glaciers and desert. Major refugial source populations for the modern Caucasus are those of the Caucasus, Anatolia, the Balkans and Siberia. In Rugged areas new genetic signatures take a long time to form, but once they do so, they remain for a long time. These areas act as time capsules harboring genetic signatures of ancient source populations and making it possible to help reconstruct human history based on patterns of variation today.
format	article
author	Alexander Gavashelishvili Alexey Yanchukov David Tarkhnishvili Marine Murtskhvaladze Irakli Akhvlediani Ceren Kazancı
author_facet	Alexander Gavashelishvili Alexey Yanchukov David Tarkhnishvili Marine Murtskhvaladze Irakli Akhvlediani Ceren Kazancı
author_sort	Alexander Gavashelishvili
title	Landscape genetics and the genetic legacy of Upper Paleolithic and Mesolithic hunter-gatherers in the modern Caucasus
title_short	Landscape genetics and the genetic legacy of Upper Paleolithic and Mesolithic hunter-gatherers in the modern Caucasus
title_full	Landscape genetics and the genetic legacy of Upper Paleolithic and Mesolithic hunter-gatherers in the modern Caucasus
title_fullStr	Landscape genetics and the genetic legacy of Upper Paleolithic and Mesolithic hunter-gatherers in the modern Caucasus
title_full_unstemmed	Landscape genetics and the genetic legacy of Upper Paleolithic and Mesolithic hunter-gatherers in the modern Caucasus
title_sort	landscape genetics and the genetic legacy of upper paleolithic and mesolithic hunter-gatherers in the modern caucasus
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/dfe3b8b508b243ac9f0f13ad500c0eae
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Landscape genetics and the genetic legacy of Upper Paleolithic and Mesolithic hunter-gatherers in the modern Caucasus

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