A mitochondrial DNA (mtDNA) test looks at your female-inherited mitochondrial DNA. Historic records are often inadequate for women's history. Maternal DNA testing offers you the opportunity to at least partially overcome that barrier, and by testing your mtDNA, you will [...]
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The mtDNA - Migration Maps help you visualize your direct maternal ancestors' historic and anthropological migrations. It shows general migration paths for the major haplogroups. Please note that the lines and arrows on this map are not specific to any [...]
Your direct maternal lineage is the line that follows your mother’s maternal ancestry. This line consists entirely of women, even though both men and women have their mother’s mitochondrial DNA (mtDNA). This means that fathers do not pass on their mtDNA to [...]
Discover the countries of origin for each branch of the mtDNA Haplotree using the world’s largest mtDNA database containing 170,000 mtFull Sequences from over 180 different countries. Navigating the Public mtDNA Haplotree To navigate to a haplogroup: On the haplogroup navigation [...]
The following descriptions provide brief overviews of each main mtDNA haplogroup's origin and geographic distribution. Haplogroup A Haplogroup A is found in eastern Eurasia and throughout the Americas. This haplogroup was present in the populations that initially colonized the pre-Columbian [...]
No. The Family Finder software does not use mitochondrial DNA results for matching or relatedness calculations. The Family Finder program uses only the autosomal SNP (single nucleotide polymorphism) test results from the Family Finder microarray chip.
The closeness of a mitochondrial DNA (mtDNA) match depends on the matching level. Matches at higher levels are more likely to be recent. The table below shows the expected time to a common ancestor with your exact matches. This time [...]
No, the names in the mitochondrial DNA (mtDNA) haplogroups do not correspond with the same names in the Y-chromosome DNA (Y-DNA) haplogroups.
The only way to find a connection with your match is by comparing your genealogies. In many cultures, women changed names with marriage. Therefore, it is important to compare geographic locations alongside genealogical information and surnames.
Will my mitochondrial DNA (mtDNA) results show me admixture percentages for ancestry from different lines?
No, because mitochondrial DNA (mtDNA) is inherited exclusively from your direct maternal line, it does not show admixture from your other lines. That is, you received your mitochondrial DNA from your mother, who got it from her mother, who got [...]
All mitochondrial DNA (mtDNA) mutations go through a state of heteroplasmy. The frequency of heteroplasmy is then equal to or greater than mtDNA mutation rates. Note that population geneticists usually calculate mutation rates using those persons with the descendant genome.
In each generation, it is possible for the child to inherit the heteroplasmic genome, only the ancestral genome, or only the descendant genome. For each generation, if the mother has a heteroplasmy, each of her children will experience any one [...]
mtDNA - Matches lists your mtDNA matches (if you have them) at each level you have tested. Only people who have opted in to matching are shown. The following information about your mtDNA matches is displayed: Name - This is your [...]
There is an mtDNA section in FamilyTreeDNA's Forums.
mtDNA - Results (mtDNA - Mutations) shows your actual mtDNA results and mutations and displays the following information about your mtDNA: Haplogroup - This is your mtDNA haplogroup. Haplogroups are our place on the maternal tree tracing all people alive today back to [...]
No, it is not something that we recommend or endorse. However, Family Tree DNA customers have requested this service, and we do appreciate your enthusiasm. Therefore, Family Tree DNA has worked with population geneticists and NCBI Genbank staff to make [...]
To find connections in recent times, it is necessary to find and test multiple people who have suspected shared ancestry. You can do this by careful examination of traditional genealogical records. Making connections with people in genealogical and historic interest [...]
No. Mothers only pass on those mitochondrial DNA (mtDNA) mutations they inherited from their mothers and new mutations that occur in their eggs. Mutations that occur elsewhere are not inherited.