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The definition of Mitochondrial Eve is fixed, but the woman in prehistory who fits this definition can change. That is, not only can our knowledge of when and where Mitochondrial Eve lived change due to new discoveries, but the actual Mitochondrial Eve can change. The Mitochondrial Eve can change, when a mother-daughter line comes to an end.
In human mitochondrial genetics, L is the mitochondrial DNA macro-haplogroup that is at the root of the anatomically modern human (Homo sapiens) mtDNA phylogenetic tree. As such, it represents the most ancestral mitochondrial lineage of all currently living modern humans, also dubbed "Mitochondrial Eve". Its two sub-clades are L1-6 and L0.
The region in Africa where Tishkoff found the greatest level of mitochondrial diversity (green) and the region Behar et al. postulated the most ancient division in the human population began to occur (light brown) L0 is one of two branches from the most recent common ancestor (MRCA) for the shared human maternal lineage. The haplogroup consists ...
The hypothetical woman at the root of all these groups (meaning just the mitochondrial DNA haplogroups) is the matrilineal most recent common ancestor (MRCA) for all currently living humans. She is commonly called Mitochondrial Eve. The rate at which mitochondrial DNA mutates is known as the mitochondrial molecular clock. It is an area of ...
Haplogroup L3 is a human mitochondrial DNA (mtDNA) haplogroup. The clade has played a pivotal role in the early dispersal of anatomically modern humans. It is strongly associated with the out-of-Africa migration of modern humans of about 70–50,000 years ago. It is inherited by all modern non-African populations, as well as by some populations ...
A genealogical DNA test is performed on a DNA sample obtained by cheek-scraping (also known as a buccal swab), spit-cups, mouthwash, or chewing gum. Typically, the sample collection uses a home test kit supplied by a service provider such as 23andMe, AncestryDNA, Family Tree DNA, or MyHeritage. After following the kit instructions on how to ...
Haplogroup L1 is found most commonly in Central Africa and West Africa.It reaches its highest frequency among the Mbenga people.It is likely that it was formerly more widespread, and was constrained to its current area as a result of the Bantu migration (which is largely associated with haplogroup L2). [5]
The field of genetic genealogy and DNA sequencing has permitted ordinary people to make use of DNA testing to establish some evidence for their ancestral origins. Thousands of Family Tree DNA customers have submitted their mtDNA sequences for use in scientific studies, [4] including those led by Behar and Brook.