the research of Behar, some connection has been established between the K1a1b1a subclade and Jewish ancestry. The notion of Romani origins for K1a1b1a is very unlikely, given the much greater genetic diversity of K1a1b1a in Jews. This suggests that the presence of K1a1b1a in Romani is more likely the result of introgression into Romani populations. Version 3 of van Oven's Phylotree defines K1a1b1a by the highly polymorphic 114 in the second hypervariable region, 10978 and 12954 in the coding region, and 16234 in the first hypervariable region. This is supported by a growing number of Genbank samples. However, 12954 is not needed to define K1a1b1a as of 2013 and as mentioned above, is used to define K1a1b1a1. It may be recognized in hypervariable only samples by essential mutations: Hypervariable region 1: 16224C, 16234T, 16311C, 16519C Hypervariable region 2: 073G, 263G, 315.1C, 497T Notable individuals with Haplogroup K1a1b1a Futurist Donald Prell Subclades Tree 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 and subsequent published research. Newer research has further updated the phylogenetic tree of haplogroup K subclades. However, the K1a1b1a1 subclade has yet to be approved and does not appear in the Build 17 PhyloTree as of February 18th, 2016. K1a1b1 11470G K1a1b1a 10978G 12954C 16234T K1a1b1b 593C 2483C K1a1b1b1 789C 11620G K1a1b1c 5585A 16222T K1a1b1d 14388G 16092C 16223T K1a1b1e 9932A K1a1b1f 4823C 6528T 8842C K1a1b1g 5583T 12007A See also Genealogical DNA test Genetic Genealogy Human mitochondrial genetics Population Genetics Human mitochondrial DNA haplogroups References External links Websites PhyloTree.Org The Genographic Project by National Geographic Ian Logan's Mitochondrial DNA Site Mannis van Oven's Phylotree Charles Kerchner's mtDNA Haplogroups Page mtDNA Haplogroup K Project at Family Tree DNA DNA K1a1b1a Ashkenazi_Jews_topics