Haplogroups

Haplogroups

Haplogroups are the groupings of mankind based on analysis of the DNA which has been passed down from our ancestors since the beginning of mankind.

 
  • These haplogroup branches characterize the early migrations of population groups.
  • As a result, haplogroups are usually associated with a geographic region and can tell us about our ancient ancestors and their migrations.
  • Haplogroups were assigned letters of the alphabet before the complete analysis was done which means that the specific letter assignment itself is meaningless.
  • Your haplogroup is automatically tested and confirmed for mtDNA tests. For Y-DNA tests, your haplogroup is predicted based on a large database that Family Tree DNA has for this purpose.
  • If haplogroups are the branches of the tree then the haplotypes represent the leaves of the tree. All of the haplotypes that belong to a particular haplogroup are leaves on the same branch. Both mtDNA and Y-DNA tests provide haplogroup information, but remember that the haplogroups nomenclature are different for each.

  • A Y-DNA haplogroup is defined as all of the male descendants of the single person who first showed a particular SNP mutation. A SNP mutation identifies a group who share a common ancestor far back in time, since SNPs rarely mutate. Each member of a particular haplogroup has the same SNP mutation. For a single page graphic representation of the Y chromosome haplogroup tree, please see the haplotree.
Y-DNA Haplogroup Origins

mtDNA haplogroups
  • An mtDNA haplogroup is defined as all of the female descendants of the single person who first showed a particular polymorphism, or SNP mutation. Like Y-DNA SNP mutations, an mtDNA SNP mutation identifies a group who share a common ancestor far back in time.
mtDNA Haplogroup Origins