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Ethio Helix
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Ethio Helix

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Unfortunately I can not find the detailed breakdown of the mtDNA frequencies for the populations sampled in the supplemental materials for this paper, and hence can not build my sortable frequency charts.  Mosaic maternal a...
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Queen Isis's profile photo
 
Hello but isn't Ethiopia a country within Africa? How you have Ethiopia and Africa? What exactly is the difference?
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Ethio Helix

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Improved resolution of E-M215 (aka E3b / E1b1b)
A new paper has appeared with a a focus on Haplogroup E, and mostly focused on E-M215 and E-M35, with a moderate level of improvement in resolution from what we used to know . Basically, at first glance, the major novelty with respect to E-M215 is that all ...
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Ethio Helix

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Find below relative frequencies for Sudanese MTDNA from a thesis entitled "Genetic Patterns of Y-chromosome and Mitochondrial DNA Variation, with Implications to the Peopling  of the Sudan", the entire thesis can be downloade...
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Ethio Helix

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A new paper attempting to decipher the out of Africa exit route by focusing on Ethiopian and Egyptian autosomal genetics was published a couple of weeks ago. Putting aside the 'hocus pocus' autosomal analysis for a moment, I ...
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Ethio Helix

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The solely STR based Y TMRCA calculator now also can accept SNP based input to compute the TMRCA of a node. Instructions and methodology can be found within the app at the link below: https://ehelix.pythonanywhere.com/init/de...
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Ethio Helix

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Ugandan mtDNA
Unfortunately I can not find the detailed breakdown of the mtDNA frequencies for the populations sampled in the supplemental materials for this paper, and hence can not build my sortable frequency charts.  Mosaic maternal ancestry in the Great Lakes region ...
Unfortunately I can not find the detailed breakdown of the mtDNA frequencies for the populations sampled in the supplemental materials for this paper, and hence can not build my sortable frequency charts.  Mosaic maternal a...
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Ethio Helix

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Hi Ethio Helix,
I am a complete novice to this field, I wonder if you could help me to interpret my data. According to the Ethiohelix + Palestanian admixture I am 46.7 % Palestinian, 23.5 % Omotic, 13% Nile Saharan, 7.6 East African. I am Eritrean and have Arab linage that goes back to a thousand year. When i tried to extract my haplogroup using the online tutorials i get E1B1B1C. Not too sure if this result is consistent with the above.
Kind regards & Thanks for any assistance you can give.

Jemal
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Ethio Helix

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Sudan MTDNA
Find below relative frequencies for Sudanese MTDNA from a thesis entitled "Genetic Patterns of Y-chromosome and Mitochondrial DNA Variation, with Implications to the Peopling  of the Sudan", the entire thesis can be downloaded from here . The thesis also in...
Find below relative frequencies for Sudanese MTDNA from a thesis entitled "Genetic Patterns of Y-chromosome and Mitochondrial DNA Variation, with Implications to the Peopling  of the Sudan", the entire thesis can be downloade...
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Ethio Helix

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Exploring population size changes using SNP frequency spectra
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Abstract
Paleoanthropologists have long argued that environmental pressures played a key role in human evolution. However, our understanding of how these pressures mediated the behavioral and biological diversity of early modern humans and their migration patterns within and out of Africa is limited by a lack of archaeological evidence associated with detailed paleoenvironmental data. Here, we present the first stable isotopic data from paleosols and fauna associated with Middle Stone Age (MSA) sites in East Africa. Late Pleistocene (∼100-45 ka, thousands of years ago) sediments on Rusinga and Mfangano Islands in eastern Lake Victoria (Kenya) preserve a taxonomically diverse, non-analog faunal community associated with MSA artifacts. We analyzed the stable carbon and oxygen isotope composition of paleosol carbonate and organic matter and fossil mammalian tooth enamel, including the first analyses for several extinct bovids such as Rusingoryx atopocranion, Damaliscus hypsodon, and an unnamed impala species. Both paleosol carbonate and organic matter data suggest that local habitats associated with human activities were primarily riverine woodland ecosystems. However, mammalian tooth enamel data indicate that most large-bodied mammals consumed a predominantly C4 diet, suggesting an extensive C4 grassland surrounding these riverine woodlands in the region at the time. These data are consistent with other lines of paleoenvironmental evidence that imply a substantially reduced Lake Victoria at this time, and demonstrate that C4 grasslands were significantly expanded into equatorial Africa compared with their present distribution, which could have facilitated dispersal of human populations and other biotic communities. Our results indicate that early populations of Homo sapiens from the Lake Victoria region exploited locally wooded and well-watered habitats within a larger grassland ecosystem.
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Fabbeyond Jefe's profile photo
 
Appreciate this and I also appreciate your work evening though it might be sort of complex for someone whose not as study in biology etc. I do have some questions
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Ethio Helix

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New NGS study of the Y DNA
A new Y-DNA study has appeared using Next Generation Sequencing, where ~9 Mb of the Y Chromosome was sequenced for 456 samples (299 of which were new) some preliminary observations are outlined below: (1) Mutation Rate: This is the second published study to...
A new Y-DNA study has appeared using Next Generation Sequencing, where ~9 Mb of the Y Chromosome was sequenced for 456 samples (299 of which were new) some preliminary observations are outlined below: (1) Mutation Rate: Thi...
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Population genetics focusing on Africa and Ethiopia.
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Population genetics focusing on Africa and Ethiopia.
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