In human genetics, Haplogroup BR, also known as Haplogroup YxA (SRY10831.1 (SRY1532), M42, M94, M139, M299) is a Y-chromosome haplogroup.

Haplogroup BR split off from haplogroup A 55,000 years bp, probably originating in North East Africa. It contains all living human Y-DNA haplogroups except for A.

References[edit | edit source]


Phylogenetic tree of human Y-chromosome DNA haplogroups [χ 1][χ 2]
"Y-chromosomal Adam"
A00 A0-T [χ 3]
A0 A1 [χ 4]
A1a A1b
A1b1 BT
B CT
DE CF
D E C F
F1  F2  F3  GHIJK
G HIJK
IJK H
IJ K
I   J     LT [χ 5]       K2 [χ 6]
L     T    K2a [χ 7]        K2b [χ 8]     K2c     K2d K2e [χ 9]  
K-M2313 [χ 10]     K2b1 [χ 11] P [χ 12]
NO   S [χ 13]  M [χ 14]    P1     P2
N O Q R

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