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Ethio Helix
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Ethio Helix

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Mutation rate of the nuclear genome is getting a fossil calibration
The SMBE 2014 conference is showcasing a presentation where a 45,000 year old genome is being fully sequenced by Fu et al. and where the sequence will be used to calibrate, to my knowledge for the first time, the mutation rate of the nuclear genome. Previou...
The SMBE 2014 conference is showcasing a presentation where a 45,000 year old genome is being fully sequenced by Fu et al. and where the sequence will be used to calibrate, to my knowledge for the first time, the mutation rat...
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Ethio Helix

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Median Joining Networks
This post will be dedicated to YSTR median joining networks I will be creating using the Fluxus Network Software © The  Y TMRCA calculator now also has the capability to create the input file necessary to create median joining networks using the Fluxus Netw...
This post will be dedicated to YSTR median joining networks I will be creating using the Fluxus Network Software© The  Y TMRCA calculator now also has the capability to create the input file necessary to create median joining...
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Ethio Helix

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The $1,000 genome
.................The price of sequencing an average human genome has plummeted from about
US$10 million to a few thousand dollars in just six years (see ‘Falling fast’ ).
That does not just outpace Moore's law — it makes the once-powerful
predictor of un...
.................The price of sequencing an average human genome has plummeted from about US$10 million to a few thousand dollars in just six years (see ‘Falling fast’). That does not just outpace Moore's law — it makes the o...
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Ethio Helix

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mtDNA from Southern Africa
Reference mtDNA from Southern Africa from the pre-print " Migration and interaction in a contact zone: mtDNA variation among Bantu-speakers in southern Africa " (Thanks to Maju for the referral)
Reference mtDNA from Southern Africa from the pre-print "Migration and interaction in a contact zone: mtDNA variation among Bantu-speakers in southern Africa" (Thanks to Maju for the referral)
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Ethio Helix

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Comprehensive Ethiopian YDNA TMRCA Estimates
Find below a comprehensive list for all central TMRCA estimates calculated from the Plaster thesis for 6 UEPs (look at this post under Interactive Chart of Figure 3.2 for the frequencies of the UEPs).  P*(x R1a) & Y*(x BT,A3b2)   are not included due to the...
Find below a comprehensive list for all central TMRCA estimates calculated from the Plaster thesis for 6 UEPs (look at this post under Interactive Chart of Figure 3.2 for the frequencies of the UEPs). P*(x R1a) & Y*(x BT,A3b2...
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Ethio Helix

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Y TMRCA Calculator as a Web App
The Y DNA (STR) TMRCA calculator can now be accessed as a web application with full functionality here: http://ehelix.pythonanywhere.com/ It is also embedded in this blog in a new page (above) See Also: http://ethiohelix.blogspot.com/2012/06/finding-tmrca-o...
The Y DNA (STR) TMRCA calculator can now be accessed as a web application with full functionality here: http://ehelix.pythonanywhere.com/ It is also embedded in this blog in a new page (above) See Also: http://ethiohelix.bl...
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Have him in circles
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Ethio Helix

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Significance Current consensus indicates that modern humans originated from an ancestral African population between ∼100–200 ka. The ensuing dispersal pattern is controversial, yet has important implications for the demogra...
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Modeling 3D Facial Shape from DNA
While still at its infancy, this technology is quite fascinating Abstract Human
facial diversity is substantial, complex, and largely scientifically
unexplained. We used spatially dense quasi-landmarks to measure face
shape in population samples with mix...
While still at its infancy, this technology is quite fascinating Abstract Human facial diversity is substantial, complex, and largely scientifically unexplained. We used spatially dense quasi-landmarks to measure face shape ...
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Ethio Helix

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Was skin cancer a selective force for black pigmentation in early hominin evolution?
Some excerpts from a very interesting read, I suggest reading the whole article here: http://rspb.royalsocietypublishing.org/content/281/1781/20132955.full Dark or black skin lowers the risk of ultraviolet radiation (UVR)-induced skin cancer by several orde...
Some excerpts from a very interesting read, I suggest reading the whole article here: http://rspb.royalsocietypublishing.org/content/281/1781/20132955.full Dark or black skin lowers the risk of ultraviolet radiation (UVR)-in...
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Ethio Helix

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YDNA E-M123; A closer look
E-M123 (as well as E-M34) was first discovered by Underhill(2000) and is found with a low to medium frequency distribution in East Africa and the Middle East, while it has a low frequency distribution in North Africa and Europe. Phylogeny: Figure 1 - Curren...
E-M123 (as well as E-M34) was first discovered by Underhill(2000) and is found with a low to medium frequency distribution in East Africa and the Middle East, while it has a low frequency distribution in North Africa and Euro...
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Ethio Helix

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Ethiopian YDNA J STR Analysis - An addendum
In the past, I had carried out a TMRCA (STR) analysis of YDNA haplogroup J haplotypes from Ethiopia using the primary dataset from the Plaster thesis that was discussed here . While that particular dataset had a large number of haplotypes, it also had a low...
In the past, I had carried out a TMRCA (STR) analysis of YDNA haplogroup J haplotypes from Ethiopia using the primary dataset from the Plaster thesis that was discussed here. While that particular dataset had a large number o...
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Ethio Helix

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More East African mtDNA Charts
Below are more East African mtDNA bar graphs from the Hirbo Thesis, the complementary YDNA charts can be seen in this post , along with the Boattini paper featured here , this gives us a more complete picture of East African mtDNA with a reasonable amount o...
Below are more East African mtDNA bar graphs from the Hirbo Thesis, the complementary YDNA charts can be seen in this post, along with the Boattini paper featured here, this gives us a more complete picture of East African mt...
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Have him in circles
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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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