kingjohn
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Genetic history of Calabrian Greeks reveals ancient events and long term isolation in the Aspromonte area of Southern Italy
Stefania Sarno, Rosalba Petrilli, […]Donata Luiselli
Scientific Reports volume 11, Article number: 3045 (2021) Cite this article
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Abstract
Calabrian Greeks are an enigmatic population that have preserved and evolved a unique variety of language, Greco, survived in the isolated Aspromonte mountain area of Southern Italy. To understand their genetic ancestry and explore possible effects of geographic and cultural isolation, we genome-wide genotyped a large set of South Italian samples including both communities that still speak Greco nowadays and those that lost the use of this language earlier in time. Comparisons with modern and ancient populations highlighted ancient, long-lasting genetic links with Eastern Mediterranean and Caucasian/Near-Eastern groups as ancestral sources of Southern Italians. Our results suggest that the Aspromonte communities might be interpreted as genetically drifted remnants that departed from such ancient genetic background as a consequence of long-term isolation. Specific patterns of population structuring and higher levels of genetic drift were indeed observed in these populations, reflecting geographic isolation amplified by cultural differences in the groups that still conserve the Greco language. Isolation and drift also affected the current genetic differentiation at specific gene pathways, prompting for future genome-wide association studies aimed at exploring trait-related loci that have drifted up in frequency in these isolated groups.
Source:
https://www.nature.com/articles/s41598-021-82591-9
a) Sampling map showing the approximate geographic location of analyzed populations. Sampling points are color-coded according to the province of origin: Benevento (blue); Castrovillari (purple); Catanzaro (magenta); previously collected samples from Reggio Calabria (orange); newly collected samples from Reggio Calabria (gold). The two enlarged boxes detail the sampling locations of villages in the province of Reggio Calabria (left) and in the province of Catanzaro (right), respectively. (b) Historical map showing the approximate extension of the National Park of the Aspromonte mountain area (in pink) as well as the range of the Greek-speaking area at different time periods as reported in the legend at the top-left. Geographical map has been generated with the package
and most important :cool-v:
https://i.imgur.com/sK0RwhS.png
Stefania Sarno, Rosalba Petrilli, […]Donata Luiselli
Scientific Reports volume 11, Article number: 3045 (2021) Cite this article
Metricsdetails
Abstract
Calabrian Greeks are an enigmatic population that have preserved and evolved a unique variety of language, Greco, survived in the isolated Aspromonte mountain area of Southern Italy. To understand their genetic ancestry and explore possible effects of geographic and cultural isolation, we genome-wide genotyped a large set of South Italian samples including both communities that still speak Greco nowadays and those that lost the use of this language earlier in time. Comparisons with modern and ancient populations highlighted ancient, long-lasting genetic links with Eastern Mediterranean and Caucasian/Near-Eastern groups as ancestral sources of Southern Italians. Our results suggest that the Aspromonte communities might be interpreted as genetically drifted remnants that departed from such ancient genetic background as a consequence of long-term isolation. Specific patterns of population structuring and higher levels of genetic drift were indeed observed in these populations, reflecting geographic isolation amplified by cultural differences in the groups that still conserve the Greco language. Isolation and drift also affected the current genetic differentiation at specific gene pathways, prompting for future genome-wide association studies aimed at exploring trait-related loci that have drifted up in frequency in these isolated groups.
Source:
https://www.nature.com/articles/s41598-021-82591-9
a) Sampling map showing the approximate geographic location of analyzed populations. Sampling points are color-coded according to the province of origin: Benevento (blue); Castrovillari (purple); Catanzaro (magenta); previously collected samples from Reggio Calabria (orange); newly collected samples from Reggio Calabria (gold). The two enlarged boxes detail the sampling locations of villages in the province of Reggio Calabria (left) and in the province of Catanzaro (right), respectively. (b) Historical map showing the approximate extension of the National Park of the Aspromonte mountain area (in pink) as well as the range of the Greek-speaking area at different time periods as reported in the legend at the top-left. Geographical map has been generated with the package
and most important :cool-v:
https://i.imgur.com/sK0RwhS.png