Biology:Haplogroup E-V32
In human genetics, E-V32, also known as E1b1b1a1a1b[1] (Formerly E3b1a1a), is a Y DNA Chromosome haplogroup found primarily in the Horn of Africa, a descendant of the larger E-V68 branch of the macrohaplogroup E.
Origins
Cruciani et al. (2007) suggest that this sub-clade of E-V12 originated in North Africa, and then subsequently expanded further south into the Horn of Africa, where it is now prevalent.[Note 3] Before the discovery of V32, Cruciani et al. (2004)referred to the same lineages as the "gamma cluster", which was estimated to have arisen about 8,500 years ago. They stated that "the highest frequencies in the three Cushitic-speaking groups: the Borana from Kenya (71.4%), the Oromo from Ethiopia (32.0%), and the Somali (52.2%). Outside of eastern Africa, it was found in two subjects from Egypt (3.6%) and in one Arab from Morocco".
Age
YFull[2] estimates the V32 branch was formed 10100 years before present, and the time to the most recent common ancestor is 7900 years before present.
Distribution
Tillmar et al. (2009) typed 147 males from Somalia for 12 Y-STR loci, and observed that 77% (113/147) had typical E-V32 haplotypes. This is currently the highest frequency of E-V32 found in any single sample population. Similarly, Hassan et al. (2008) in their study observed this to be the most common of the sub-clades of E-M78 found in Sudan, especially among the Beja, Masalit and Fur.
Sub-clades
- E-V32
These are the currently publicly known subclades of E-V32 available on YFull.[2]
References
- ↑ ISOGG, Copyright 2016 by. "ISOGG 2016 Y-DNA Haplogroup E". http://isogg.org/tree/ISOGG_HapgrpE.html.
- ↑ 2.0 2.1 "E-V32 YTree". https://www.yfull.com/tree/E-V32/.
 |
