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Haplogroup E3 (Y-DNA)
E-P2, also known as E1b1, is a human Y-chromosome DNA haplogroup. This paternal clade had an ancient presence in the Middle East, and is now primarily distributed in Africa where it's believed to have originated, with lower frequencies in the Middle East and Europe. Origin Trombetta et al. 2011, suggest an origin in eastern Africa: The new topology here reported has important implications as to the origins of the haplogroup E-P2. Using the principle of the phylogeographic parsimony, the resolution of the E-M215 trifurcation in favor of a common ancestor of E-M2 and E-M329 strongly supports the hypothesis that haplogroup E-P2 originated in eastern Africa, as previously suggested, and that chromosomes E-M2, so frequently observed in sub-Saharan Africa, trace their descent to a common ancestor present in eastern Africa. Distribution Natufian culture, Natufian fossils that were analysed for ancient DNA were found to carry the paternal haplogroup E1b1(xE1b1a1,E1b1b1b1) (1/5; 20%). †... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haplogroup E-P177
In human population genetics, haplogroups define the major lineages of direct paternal (male) lines back to a shared common ancestor in Africa. Haplogroup E-P177, has 2 known branches, E-P2, which is the most common, and E-P75. Distribution The Americas E-P177 was not present in the Americas before European colonization. Subclade distribution E-P177* So far there are no attested exemplars of E-M177*. E-P2 The E-P177 lineage is dominated in modern populations by subclade E-P2 (aka E-PN2), which is by far the most frequent. E-P75 Another subclade, E-P75, was announced in and confirmed as a sibling to E-P177 in . Associated SNPs E-P177 is defined by the P177 SNP alone. Phylogenetics Phylogenetic history Prior to 2002, there were in academic literature at least seven naming systems for the Y-Chromosome Phylogenetic tree. This led to considerable confusion. In 2002, the major research groups came together and formed the Y-Chromosome Consortium (YCC). They publish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |