The site stated, "Though the origin of this lineage is not clear, it is a founding population among some Jewish Diaspora groups.
By the time of Build 17, released on February 18, 2016, van Oven's phylogenetic tree, called the PhyloTree,[1] updated its definition of K1a1b1a.
The definition of K1a1b1a no longer requires the mutation (C114T) on the highly polymorphic marker 114 in the second hypervariable region (HVR2).
Thousands of Family Tree DNA customers have submitted their mtDNA sequences for use in scientific studies,[4] including those led by Behar and Brook.
[7] The notion of Romani origins for K1a1b1a is impossible, given the much greater genetic diversity of K1a1b1a in Jews and the fact that this haplogroup was already widespread in Jewish populations by the 14th century.
A growing number of GenBank samples support the observations of mutations and population distributions described above.
It may be recognized in hypervariable-only samples by the following essential mutations: This phylogenetic tree of haplogroup K subclades is based on the paper by Mannis van Oven and Manfred Kayser Updated comprehensive phylogenetic tree of global human mitochondrial DNA variation[1] and subsequent published research.