Haplogroup E-M132, formerly known as E-M33 (E1a), is a human Y-chromosome DNA haplogroup. Along with E-P177, it is one of the two main branches of the older E-P147 paternal clade. E-M132 is divided into two primary sub-branches, E-M44 and E-Z958, with many descendant subclades.
Ancient DNA
E-M132/E1a has been found in the remains of one Guanche (1/30) from the Canary Islands, and one Bimbape (1/16) from El Hierro that has been dated to the 10th century CE.[6]
A man from the Koban culture (1/15) of the North Caucasus, which has been dated between the 9th century BCE and the 7th century BCE, carried paternal haplogroup E1a2a1b1b, as well as maternal haplogroup J1b1 or J1c.[7]
Distribution
E-M132 is found most often in West Africa, and today it is especially common in the region of Mali. One study has found haplogroup E-M132 Y-chromosomes in as much as 34% (15/44) of a sample of Malian men, including 2/44 E-M44 and 13/44 E-M33/M132(xE-M44).[8] In particular, the Dogon people of Mali have been found to carry haplogroup E-M132 with a frequency as high as 45.5% (25/55). This makes it perhaps the most common Y-DNA haplogroup in this population, though haplogroup E-P1 appears to be almost equally frequent among the Dogon (24/55 = 43.6%).[3] Another study has found haplogroup E-M132 in 15.6% (44/282) of a pool of seven samples of various ethnic groups in Guinea-Bissau.[4]
Prior to 2002, there were in academic literature at least seven naming systems for the Y-Chromosome phylogenetic tree. This led to considerable confusion. In 2002, the major research groups came together and formed the Y-Chromosome Consortium (YCC). They published a joint paper that created a single new tree that all agreed to use. Later, a group of citizen scientists with an interest in population genetics and genetic genealogy formed a working group to create an amateur tree aiming at being, above all, timely. The table below brings together all of these works at the point of the landmark 2002 YCC tree. This allows a researcher reviewing older published literature to quickly move between nomenclatures.
^Van Oven M, Van Geystelen A, Kayser M, Decorte R, Larmuseau HD (2014). "Seeing the wood for the trees: a minimal reference phylogeny for the human Y chromosome". Human Mutation. 35 (2): 187–91. doi:10.1002/humu.22468. PMID24166809. S2CID23291764.
^K-M2313*, which as yet has no phylogenetic name, has been documented in two living individuals, who have ethnic ties to India and South East Asia. In addition, K-Y28299, which appears to be a primary branch of K-M2313, has been found in three living individuals from India. See: Poznik op. cit.; YFull YTree v5.08, 2017, "K-M2335", and; PhyloTree, 2017, "Details of the Y-SNP markers included in the minimal Y tree" (Access date of these pages: 9 December 2017)
^ Haplogroup S, as of 2017, is also known as K2b1a. (Previously the name Haplogroup S was assigned to K2b1a4.)
^ Haplogroup M, as of 2017, is also known as K2b1b. (Previously the name Haplogroup M was assigned to K2b1d.)
^Peter A. Underhill, Peidong Shen, Alice A. Lin et al., "Y chromosome sequence variation and the history of human populations," Nature Genetics, Volume 26, November 2000
^Vincenza Battaglia, Simona Fornarino, Nadia Al-Zahery et al., "Y-chromosomal evidence of the cultural diffusion of agriculture in southeast Europe," European Journal of Human Genetics (2008), 1 – 11
^Bosch E., Calafell F., González-Neira A.; et al. (2006). "Paternal and maternal lineages in the Balkans show a homogeneous landscape over linguistic barriers, except for the isolated Aromuns". Annals of Human Genetics. 70 (4): 459–487. doi:10.1111/j.1469-1809.2005.00251.x. PMID16759179. S2CID23156886.{{cite journal}}: CS1 maint: multiple names: authors list (link)
Underhill, Peter A.; Shen, Peidong; Lin, Alice A.; Jin, Li; et al. (November 2000). "Y chromosome sequence variation and the history of human populations". Nature Genetics. 26 (3): 358–361. doi:10.1038/81685. PMID11062480. S2CID12893406.