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View Full Version : Evidence of the interplay of genetics and culture in Ethiopia



Michalis Moriopoulos
06-12-2021, 02:11 AM
Evidence of the interplay of genetics and culture in Ethiopia
Lopez et al

The rich linguistic, ethnic and cultural diversity of Ethiopia provides an unprecedented opportunity to understand the level to which cultural factors correlate with and shape genetic structure in human populations. Using primarily new genetic variation data covering 1,214 Ethiopians representing 68 different ethnic groups, together with information on individuals’ birthplaces, linguistic/religious practices and 31 cultural practices, we disentangle the effects of geographic distance, elevation, and social factors on the genetic structure of Ethiopians today. We provide evidence of associations between social behaviours and genetic differences among present-day peoples. We show that genetic similarity is broadly associated with linguistic affiliation, but also identify pronounced genetic similarity among groups from disparate language classifications that may in part be attributable to recent intermixing. We also illustrate how groups reporting the same culture traits are more genetically similar on average and show evidence of recent intermixing, suggesting that shared cultural traits may promote admixture. In addition to providing insights into the genetic structure and history of Ethiopia, we identify the most important cultural and geographic predictors of genetic differentiation and provide a resource for designing sampling protocols for future genetic studies involving Ethiopians.

https://www.nature.com/articles/s41467-021-23712-w.epdf?sharing_token=dJqDDyr-49j5UG5dySyWEtRgN0jAjWel9jnR3ZoTv0PmJ6MDXMf4A8Y-628ViWTZcfEvmnuEm60EQDlJaNMX9USIfMWHX_0xVlwJXNqE13 wGohB5l3GLvisNlsq67wQbwvFDz693kmwbE7RfUjv0XmiYoopC QTspNOSv8xtBNg8%3D

The samples have been uploaded to the European Genome-Phenome archive, which means hobbyists like us will be unable to access them. This is a shame as the Chabu are in there, among many other samples.

Mirix
06-14-2021, 09:17 AM
That paper pretty much adds further proof to what i said in in another thread: https://anthrogenica.com/showthread.php?15636-Somalis-and-T-Y16897&p=773993#post773993

Ethiopian groups cluster/pool more with eachother, than with Somalis. Although HOA are similar overall , Somalis seem genetically more distant/isolated from Southern Ethiopian populations out of all the ethiopian groups. Even Northern Tigrays have more of an affinity with Southern Ethiopians if you discount for their new West Asian admixture. This even shows up in the genome wide analysis of ethiopian populations.The genetic landscape of Ethiopia (https://www.well.ox.ac.uk/~gav/work_in_progress/ethiopia/v5/index.html)



I think it supports the new narrative that Somalis originated in the Northern-Eastern part of the horn (https://books.google.cd/books?id=X1dDDwAAQBAJ&pg=PA43&dq=making+sense+of+Somali+history+“the+ancestral+h ome+of+the+Somalis+was+the+northern+part+of+the+Pe ninsula,&hl=no&sa=X#v=onepage&q=making%20sense%20of%20Somali%20history%20“the%20 ancestral%20home%20of%20the%20Somalis%20was%20the% 20northern%20part%20of%20the%20Peninsula%2C&f=false) remained seperated from other HOA groups for more than a millenium, before their eventual expansion south and west over 3k years ago. The land was probably virtually uninhabited except for some prior occupation by pre-historic extinct hunter gatherer groups. The lack of obeservable substratum anywhere in Somalia from at least the late middle stone ages lends to this.