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YDNA from Southern Africa
Naidoo et. al (2010) reports YDNA from 3 different groups in Southern Africa with a fair amount of resolution.Electropherogram and phylogenyHere below are the frequencies found:
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Ethiopian Lions are Distinict
Lion (Panthera leo) numbers are in serious decline and two of only a handful of evolutionary significant units have already become extinct in the wild. However, there is continued debate about the...
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An early and enduring advanced technology originating 71,000 years ago in...
There is consensus that the modern human lineage appeared in Africa before 100,000 years ago1,2. But there is debate as to when cultural and cognitive characteristics typical of modern humans first...
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STRUCTURE run on High/Low Altitude Ethiopians
The pdf can be downloaded hereRegarding the populations sampled, the paper notes the following:“The high altitude (HA) Amhara are agropastoralists living in a temperate Afro-alpine ecosystem in the...
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Extensive Doctoral Thesis on Ethiopian Y and mtDNA
I was contacted earlier by Dr. Chris Plaster about a doctoral thesis on Ethiopian Y & mtDNA that was completed 2 years ago but had been embargoed to the public until only about two months ago. As...
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National Geographic fesses up on the origin of E-M35
In their second phase of the massive global scale genetic testing project, Geno 2.0: The Greatest Journey Ever Told, National Geographic has finally fessed up to the most parsimonious explanation to...
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Ramesses III belonged to YDNA haplogroup E1b1a
According to a study published yesterday, Revisiting the harem conspiracy and death of Ramesses III: anthropological, forensic, radiological, and genetic study, Y- STR data places his YDNA haplogroup...
View ArticleTMRCA calculations from Plaster NRY data : Correcting an Error
Previously, I had computed TMRCAs for the YDNA STR data from the additional material that was provided along with Dr.Chris Plaster's thesis. However, after a brief communication with the author, I...
View ArticleEast African mtDNA variation has implications on the origin of Afroasiatic
The Dienekes' Anthropology Blog shows a new paper on East African mtDNA with implications for the origin of Afroasiatic, namely with the citing:"making the hypothesis of a Levantine origin of AA...
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A speculative superimposition of E-M35 variants onto Afroasiatic.
Here is a speculative superimposition of the variants of YDNA E-M215/M35 (E1b1b/1) onto an Afroasiatic internal classification, Lionel Bender's (1997) classification. The red question marks represent a...
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Sudan YDNA
This is from a relatively old study, but it seems that it is the most comprehensive YDNA breakdown we have of North and South Sudan to date.Y-chromosome variation among Sudanese: restricted gene flow,...
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Gradient Maps for African ADMIXTURE components
Here below are gradient maps for my last African ADMIXTURE run, Africa_V2b, courtesy of a demo download of Mapviewer7 . The Kriging method was used for Gridding and 'Grid Z limits' mode was used for...
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The Zhivotovsky Multiplier
It is reported that Zhivotovsky's effective mutation rate [1] has the effect of increasing the TMRCA of a lineage, as computed by the use of Microsattelite Genetic Distances[2], by a factor of 3-4 fold...
View ArticleGeno 2.0 YDNA SNP Pathways.
The Geno 2.0 chip tests some 13,000 SNPs on the Y-Chromosome, by far the largest from all commercial DNA companies, in addition, a lot of these SNPs do not have a place assigned in the YDNA phylogeny,...
View ArticleAfrican Sahel YDNA
Multiple and differentiated contributions to the male gene pool of pastoral and farmer populations of the African SahelABSTRACTThe African Sahel is conducive to studies of divergence/admixture genetic...
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Global Contour Map for the Dual ADMIXTURE Components.
Below is a contour map representing the African ADMIXTURE component at K=2 for the Global data set (V2) which can be downloaded here, and population specific percentages that can be seen here. Contour...
View ArticleNext-generation sequencing on Egyptian mummies
Nature has a news article out on a paper supposedly published last week in the Journal of Applied Genetics by Khairat, R. et al. which carried out next-generation sequencing on five Egyptian mummified...
View ArticleSource code for the ASD based TMRCA calculator (Octave)
The code for the TMRCA calculator of YDNA STR haplotypes that I use can be downloaded from here : https://dl.dropboxusercontent.com/u/42082352/TMRCA_ASD.zipSee also here for instances of where I have...
View ArticleAnalyzing YDNA J lineages in Ethiopian linguistic groups
The extensive YDNA dataset found in the Plaster paper has a total of 691 YDNA lineages that belong to haplogroup J, although there is no more detailed SNP resolution reported for most of these...
View ArticleAnalyzing YDNA A-M13 lineages in Ethiopian linguistic groups
Similar to the previous analysis of J lineages found in Ethiopia from the Plaster paper, the other prevalent lineage in Ethiopia, A-M13 (formerly known also as A3b2), is also analyzed below. A total of...
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