Haplogroup JT is a human mitochondrial DNA (mtDNA) haplogroup.

Origin

Haplogroup JT is descended from the macro-haplogroup R. It is the ancestral clade to the mitochondrial haplogroups J and T. JT (predominantly J) was found among the ancient

Etruscans The Etruscan civilization () was developed by a people of Etruria in ancient Italy with a common language and culture who formed a federation of city-states. After conquering adjacent lands, its territory covered, at its greatest extent, roug ...

. The haplogroup has also been found among

Iberomaurusian The Iberomaurusian is a backed bladelet lithic industry found near the coasts of Morocco, Algeria, and Tunisia. It is also known from a single major site in Libya, the Haua Fteah, where the industry is locally known as the Eastern Oranian.The " ...

specimens dating from the

Epipaleolithic In archaeology, the Epipalaeolithic or Epipaleolithic (sometimes Epi-paleolithic etc.) is a period occurring between the Upper Paleolithic and Neolithic during the Stone Age. Mesolithic also falls between these two periods, and the two are somet ...

at the Taforalt prehistoric site. One ancient individual carried a haplotype, which correlates with either the JT clade or the haplogroup H subclade H14b1 (1/9; 11%).

Subclades

Tree

This phylogenetic tree of haplogroup JT 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. *R2'JT **JT *** J *** T

Health

Maternally inherited ancient mtDNA variants have clear impact on the presentation of disease in a modern society. Superhaplogroup JT is an example of reduced risk of Parkinson's disease And mitochondrial and mtDNa alterations continue to be promising disease biomarkers.Mitochondrion. 2019 May; 46: 307–312.doi: 10.1016/j.mito.2018.07.008

References

External links