Newly Discovered Y-Chromosome SNP Among Tanzanian, Nambibian, Botswanan, Angolan Men Correlates With The Arrival Of Pastoralism In Southern Africa

According to this press release, a new paper reports on the discovery of a 10,000 year old SNP on the Y-chromosomes of men from Tanzania and southern Africa. It will be appearing in PNAS' online early edition tomorrow (DOI: 10.1073/pnas.0801184105). The SNP is thought to have originated in eastern Africa, "The team analyzed Y chromosomes... Continue Reading →

Does mtDNA and Y-Chromosome show different signatures of population growth?

About two weeks ago, I blogged on how variation mtDNA was used to reconstruct an idea of Pleistocene population growth. That study was very remarkable because illuminated a large 5 fold increase in South Asian populations about 50,000 years ago. But we haven't been able to use polymorphisms in autosomal loci to the same. A... Continue Reading →

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