by Jakob Norstedt, admin Q Nordic project
Q-L804 is one of the two subclades forming the Q Nordic project (the other is Q-L527).
This is Q-L804’s position in relation to it’s neighbors:
Q-L804 and it’s neighbor clades with time estimates from Yfull for branching. ybp = Years before present
Q-L804 is very independant. It’s closest neighbor clade is Q-M3 but their most recent common ancestor lived about 15,000 years ago. Q-M3’s members have Native American ancestry.
Just a little further away is the Q-Z780 subclade which also has members of Native American ancestry. The Anzick-1 boy buried in Montana, USA, 12,600 years ago and found in 1968 belonged to Q-Z780.
As far as we know now (data from Yfull), contemporary members of Q-M3 have an origin in countries like Peru, Colombia and Mexico and contemporary subclades of Q-Z780 are found in Mexico.
Branches of Q-L804
A total of 23 BigY samples have revealed a basic structure of Q-L804. So far we know three main branches:
Q-L804 and it’s three branches
The branches all have a common ancestor who lived about 3100 years ago. There are about the same number of kits in each branch.
Distribution of the three branches
The known ancestors of the tested kits indicate different histories of the branches.
The three Q-L804 branches. Origin of BigY kits with known ancestry.
Q-JN15 Western Scandinavia
The branch defined by the SNP JN15 has members with ancestry from western Norway, Iceland, Britain, and France.
The Western Scandinavia branch of Q-L804.
It seems reasonable to think that the diversity of nationalities reflects an expansion from Norway by Vikings and/or Normans. The Icelandic kit splits from the others a little later and has it’s genetically closest cousin in Geiranger, Møre og Romsdal, Norway.
The distance Geiranger – Iceland is about 1200 km
The British branch, defined by the SNP BY386, has kits from England and Scotland. In this branch there are also kits from USA with unknown but supposed British origin.
The British branch of Q-L804.
MacSwain, the Scottish kit at the far right of the chart, is the first to split from the others. Three tested kits with the surname Pearson is a part of this subclade. They are not yet fully analyzed at Yfull.
Q-BY469 Easter Scandinavia
The branch defined by the SNP BY469 has most of it’s members in Sweden.
The Eastern Scandinavia branch of Q-L804.
There is also a kit with German ancestry (surname Frum) and a kit from Hedmark in Norway close to the Swedish border.
Link to the Q Nordic project
Link to Q-L804 at Yfull
Link to Q Nordic at Yseq
Link to overview for print (PDF)