Haplogroup LT or LT-L298/P326, also known as K1 (and until 2008 as Haplogroup K2), is a Y-chromosome DNA haplogroup. Its defining SNP mutations are L298 and P326.
K1 (a.k.a. LT) splits into:
Haplogroup L — mostly South Asian and some Middle Eastern populations Haplogroup T — rarer, found in parts of South Asia, the Middle East, East Africa, and Europe
Structure
It is generally believed that LT (L298/P326) originated somewhere in Asia.
LT is a direct descendant of haplogroup K (M9).
The direct descendants of LT are haplogroup L (M20), also known as K1a, and haplogroup T (M184), also known as K1b.International Society of Genetic Genealogy, 2015, Y-DNA Haplogroup Tree 2015 (30 May 2015).
Distribution
Y-DNA haplogroup LT is an old lineage widely distributed at low concentrations. It was established approximately 30,000-40,000 years ago, probably in South Asia or West Asia.
Its descendants are found mainly in populations indigenous to the Horn of Africa, North Africa, South Asia, West Asia, Central Asia and Europe.
Basal, unmutated LT* (K1a*) has been identified only in two early medieval remains from Central Europe (i.e. present-day Lower Austria).Yfull (2026), LT Ytree (access: 27 May 2026).
L-M20 is found at its highest frequency in India, Pakistan and among the Balochs of Afghanistan, and at low frequencies in the Middle East and Europe.
T-M184 is most common in the Horn of Africa, the Nile Valley, the Arabian Peninsula, Iran, as well as in some regions of Central Asia, Eastern India and Europe.Other SNPs – M272, PAGES129, L810, L455, L452, and L445 – are considered to be phylogenetically equivalent to M184.
Pseudoscientific theories The American young-Earth creationist organization Answers in Genesis believes Haplogroup LT to be the lineage of the Biblical Abraham, a claim not supported by mainstream genetics and archeology.
References