Haplogroup L4b (mtDNA)

Haplogroup L4b
Possible time of origin	40000 YBP
Possible place of origin	Arabian Peninsula
Ancestor	L4
Defining mutations	709, 3918 [1]
Highest frequencies	L4b1, L4b2

In human mitochondrial genetics, Haplogroup L4b is a human mitochondrial DNA (mtDNA) haplogroup. It is commonly found in East Africa and the Southwestern Arabian Peninsula.

Origin

This haplogroup is believed to have diverged from Haplogroup L4 about 40000 YBP with a migration out of Africa into the Fertile Crescent.

Distribution

The Haplogroup is most concentrated in the southern tip of the Arabian Peninsula.

Subclades

Tree

This phylogenetic tree of haplogroup L4 subclades is based on the paper by Mannis van Oven and Manfred Kayser.^[2]

Most Recent Common Ancestor (MRCA)

• L4
  • L4b
    • L4b1
    • L4b2 (Formerly known as L3g or L4g)
      • L4b2a
        • L4b2a1
        • L4b2a2
          • L4b2a2a
          • L4b2a2b
            • • • L4b2b

References

1. http://www.familytreedna.com/mtDNA-Haplogroup-Mutations.aspx
2. Updated comprehensive phylogenetic tree of global human mitochondrial DNA variation

Phylogenetic tree of human mitochondrial DNA (mtDNA) haplogroups

Mitochondrial Eve (L)

L0

L1–6

L1

L2

L3

L4

L5

L6

M

N

CZ

D

E

G

Q

O

A

S

R

I

W

X

Y

C

Z

B

F

R0

pre-JT

P

U

HV

JT

K

H

V

J

T

External links

• Ian Logan's Mitochondrial DNA Site
• Mannis van Oven's Phylotree
• Family Tree DNA's Mitochondrial DNA Mutation Site