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Haplogroup J is a human mitochondrial DNA (mtDNA) haplogroup. The clade derives from the haplogroup JT , which also gave rise to haplogroup T . Within the field of medical genetics , certain polymorphisms specific to haplogroup J have been associated with Leber's hereditary optic neuropathy .
Macro-haplogroup L is the most basal of human mtDNA haplogroups, from which all other haplogroups descend (specifically, from haplogroup L3). It is found mostly in Africa. Haplogroup L0; L1-7 Haplogroup L1; L2-7 L3'4'6 Haplogroup L2
JT (predominantly J) was found among the ancient Etruscans. [2] The root level haplogroup JT* has been assigned to an ancient person found at the Colfiorito necropolis in Umbria in central Italy. [3] The haplogroup has also been found among Iberomaurusian specimens dating from the Epipaleolithic at the Taforalt prehistoric site. [4]
Joy Ibsen's mtDNA was tested and belongs to mtDNA haplogroup J1c2c. [38] [39] Joy Ibsen died in 2008. On 4 February 2013, University of Leicester researchers announced that there was an mtDNA match between that of a skeleton exhumed in Leicester suspected of belonging to Richard III and that of Joy Ibsen's son, Michael Ibsen, and a second ...
Haplogroups can be used to define genetic populations and are often geographically oriented. For example, the following are common divisions for mtDNA haplogroups: African: L0, L1, L2, L3, L4, L5, L6; West Eurasian: H, T, U, V, X, K, I, J, W (all listed West Eurasian haplogroups are derived from macro-haplogroup N) [10]
Haplogroup J (mtDNA), a human mitochondrial DNA (mtDNA) haplogroup Haplogroup J (Y-DNA) , a human Y-chromosome (Y-DNA) haplogroup Topics referred to by the same term
Haplogroup J-M304, also known as J, [Phylogenetics 1] is a human Y-chromosome DNA haplogroup.It is believed to have evolved in Western Asia. [2] The clade spread from there during the Neolithic, primarily into North Africa, the Horn of Africa, the Socotra Archipelago, the Caucasus, Europe, Anatolia, Central Asia, South Asia, and Southeast Asia.
Haplogroup J-M267, also commonly known as Haplogroup J1, is a subclade (branch) of Y-DNA haplogroup J-P209 (commonly known as haplogroup J) along with its sibling clade haplogroup J-M172 (commonly known as haplogroup J2). (All these haplogroups have had other historical names listed below. [Phylogenetics 1] [Phylogenetics 2])