[2][9], The name "Mitochondrial Eve" alludes to biblical Eve, which has led to repeated misrepresentations or misconceptions in journalistic accounts on the topic. By analysing descendants' DNA, however, parts of ancestral genomes are estimated by scientists. This leads to the construction of a DNA family tree where the branches are in biological terms clades, and the common ancestors such as Mitochondrial Eve sit at branching points in this tree. Each marker is a DNA base-pair that has resulted from an SNP mutation. "[33], Although the original research did have analytical limitations, the estimate on the age of the mt-MRCA has proven robust. Since the mtDNA is inherited maternally and recombination is either rare or absent, it is relatively easy to track the ancestry of the lineages back to a MRCA; however, this MRCA is valid only when discussing mitochondrial DNA. study in January 1988, under a heading of "Scientists Explore a Controversial Theory About Man's Origins". Simplified human mitochondrial phylogeny The mitochondrial clade that defines mitochondrialeve is the species Homo sapiens sapiens itself, or at least the current population or … Cann, Stoneking & Wilson (1987) harvtxt error: multiple targets (2×): CITEREFCannStonekingWilson1987 (help)'s placement of a relatively small population of humans in sub-Saharan Africa was consistent with the hypothesis of Cann (1982) and lent considerable support for the "recent out-of-Africa" scenario. Their main job is to convert energy. [citation needed], The definition of Mitochondrial Eve is fixed, but the woman in prehistory who fits this definition can change. When the mitochondrial lineages of daughters of Mitochondrial Eve die out, then the title of "Mitochondrial Eve" shifts forward from the remaining daughter through her matrilineal descendants, until the first descendant is reached who had two or more daughters who together have all living humans as their matrilineal descendants. [17], The dating for "Eve" was a blow to the multiregional hypothesis, which was debated at the time, and a boost to the theory of the recent origin model. [1][38][note 5] A certain number of these new variants will survive into modern times and be identifiable as distinct lineages. [...] estimates the coalescence time of the mtDNA tree overall at ~160,000 kya [...] We present a revised chronology using the complete mtDNA genome rate and an ML approach for the mtDNA tree in Figure 6, with full details of the age estimates and associated 95% confidence regions in Table S5. 'MitochondrialEve' represents that female individual (or more likely a collection of individuals with near identical mitochondrial sequence) to whom all lines of present-day human mitochondrial descent can be … As of 2013, estimates on the age of this split ranged at around 150,000 years ago,[note 3] consistent with a date later than the speciation of Homo sapiens but earlier than the recent out-of-Africa dispersal. 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