Phylogenetic structure of haplogroup I, made by population geneticist… — Archaeogenetics channel — TG.ME

Phylogenetic structure of haplogroup I, made by population geneticist Razib Khan to showcase a classic example of an old haplogroup with diverse branches (I2) and one that is the result of a recent and quick expansion and therefore has a star-shaped cluster (I1). Haplogroup I2 has a very old history in Europe that's reflected in its branching. The TMRCA (time to most recent commo ancestor) of haplogroup I2 is 23,000 BC and it was once the dominant haplogroup across most of Europe. The TMRCA of haplogroup I1 on the other hand is 2600 BC, meaning that all living I1 men descend from one man who lived in 2600 BC. https://www.razibkhan.com/p/chariots-of-ice-coursers-of-the-sun