HOME

TheInfoList



OR:

E-P2, also known as E1b1, is a
human Y-chromosome DNA haplogroup In human genetics, a human Y-chromosome DNA haplogroup is a haplogroup defined by mutations in the non- recombining portions of DNA from the male-specific Y chromosome (called Y-DNA). Many people within a haplogroup share similar numbers of sh ...
. This paternal clade had an ancient presence in the
Middle East The Middle East ( ar, الشرق الأوسط, ISO 233: ) is a geopolitical region commonly encompassing Arabian Peninsula, Arabia (including the Arabian Peninsula and Bahrain), Anatolia, Asia Minor (Asian part of Turkey except Hatay Pro ...
, and is now primarily distributed in
Africa Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...
where it's believed to have originated, with lower frequencies in the Middle East and
Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...
.


Origin

Trombetta et al. 2011, suggest an origin in eastern Africa:
The new topology here reported has important implications as to the origins of the haplogroup E-P2. Using the principle of the phylogeographic parsimony, the resolution of the E-M215 trifurcation in favor of a common ancestor of E-M2 and E-M329 strongly supports the hypothesis that haplogroup E-P2 originated in eastern Africa, as previously suggested, and that chromosomes E-M2, so frequently observed in sub-Saharan Africa, trace their descent to a common ancestor present in eastern Africa.


Distribution

Natufian The Natufian culture () is a Late Epipaleolithic archaeological culture of the Levant, dating to around 15,000 to 11,500 years ago. The culture was unusual in that it supported a sedentary or semi-sedentary population even before the introduction ...
fossils that were analysed for ancient DNA were found to carry the paternal haplogroup E1b1(xE1b1a1,E1b1b1b1) (1/5; 20%).
Table S6.1 – Y-chromosome haplogroups
/ref> This haplogroup is now found mostly in
Africa Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...
, mainly in the form of its predominant subclades E-M215 and E-V38. E-M215 is more common in
Northern Africa North Africa, or Northern Africa is a region encompassing the northern portion of the African continent. There is no singularly accepted scope for the region, and it is sometimes defined as stretching from the Atlantic shores of Mauritania in t ...
and the
Horn of Africa The Horn of Africa (HoA), also known as the Somali Peninsula, is a large peninsula and geopolitical region in East Africa.Robert Stock, ''Africa South of the Sahara, Second Edition: A Geographical Interpretation'', (The Guilford Press; 2004), ...
, and is also found at lower frequencies in the
Middle East The Middle East ( ar, الشرق الأوسط, ISO 233: ) is a geopolitical region commonly encompassing Arabian Peninsula, Arabia (including the Arabian Peninsula and Bahrain), Anatolia, Asia Minor (Asian part of Turkey except Hatay Pro ...
,
Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...
and
Southern Africa Southern Africa is the southernmost subregion of the African continent, south of the Congo and Tanzania. The physical location is the large part of Africa to the south of the extensive Congo River basin. Southern Africa is home to a number of ...
. E-V38 is more common in
West Africa West Africa or Western Africa is the westernmost region of Africa. The United Nations defines Western Africa as the 16 countries of Benin, Burkina Faso, Cape Verde, The Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Mali, Maurit ...
,
Central Africa Central Africa is a subregion of the African continent comprising various countries according to different definitions. Angola, Burundi, the Central African Republic, Chad, the Democratic Republic of the Congo, the Republic of the Congo, ...
,
Southern Africa Southern Africa is the southernmost subregion of the African continent, south of the Congo and Tanzania. The physical location is the large part of Africa to the south of the extensive Congo River basin. Southern Africa is home to a number of ...
and the
African Great Lakes The African Great Lakes ( sw, Maziwa Makuu; rw, Ibiyaga bigari) are a series of lakes constituting the part of the Rift Valley lakes in and around the East African Rift. They include Lake Victoria, the second-largest fresh water lake in the ...
, and occurs at low frequencies in North Africa and Middle East. The paraclade, referred to as E-P2*, and including cases which are neither in E-V38 or E-M215 are either rare or nonexistent. So far none have been found. found E-P2 (xM35,xM2) in 10.4% of 48 Ethiopian Amhara, 12.8% of 78 Ethiopian Oromo, 1.9% of 53
South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri ...
n
Bantu Bantu may refer to: *Bantu languages, constitute the largest sub-branch of the Niger–Congo languages *Bantu peoples, over 400 peoples of Africa speaking a Bantu language * Bantu knots, a type of African hairstyle *Black Association for National ...
, and 2.9% of 139
Senegalese Senegal,; Wolof: ''Senegaal''; Pulaar: 𞤅𞤫𞤲𞤫𞤺𞤢𞥄𞤤𞤭 (Senegaali); Arabic: السنغال ''As-Sinighal'') officially the Republic of Senegal,; Wolof: ''Réewum Senegaal''; Pulaar : 𞤈𞤫𞤲𞤣𞤢𞥄𞤲𞤣𞤭 ...
. have reported finding E-P2(xP1, xM35)in 11% (1/9) of a sample of Oromo from Ethiopia, 11% (1/9) of a sample of Iraqw from Tanzania, 10% (2/20) of a mixed sample of speakers of various
South Semitic South Semitic is a putative branch of the Semitic languages, which form a branch of the larger Afro-Asiatic language family, found in (North and East) Africa and Western Asia. History The "homeland" of the South Semitic languages is widely d ...
languages from Ethiopia, 6% (1/18) of a sample of Amhara from Ethiopia, 3% (1/30) of a sample of Ewe from Ghana, 3% (1/32) of a sample of Fante from Ghana, and 3% (1/34) of a sample of
Wolof Wolof or Wollof may refer to: * Wolof people, an ethnic group found in Senegal, Gambia, and Mauritania * Wolof language, a language spoken in Senegal, Gambia, and Mauritania * The Wolof or Jolof Empire, a medieval West African successor of the Mal ...
from Gambia/Senegal. reported one individual out of a sample of 199 African American men from Philadelphia with E-P2 (xM35, xM2). found E-P2 (xM35, xM2) in: 18% of 22
Ethiopian Jews The Beta Israel ( he, בֵּיתֶא יִשְׂרָאֵל, ''Bēteʾ Yīsrāʾēl''; gez, ቤተ እስራኤል, , modern ''Bēte 'Isrā'ēl'', EAE: "Betä Ǝsraʾel", "House of Israel" or "Community of Israel"), also known as Ethiopian Jews ...
, 2% of 49 Mossi from
Burkina Faso Burkina Faso (, ; , ff, 𞤄𞤵𞤪𞤳𞤭𞤲𞤢 𞤊𞤢𞤧𞤮, italic=no) is a landlocked country in West Africa with an area of , bordered by Mali to the northwest, Niger to the northeast, Benin to the southeast, Togo and Ghana to the ...
, 3% of 37 Rimaibe also from Burkina Faso, and 6% of 17
Fulbe The Fula, Fulani, or Fulɓe people ( ff, Fulɓe, ; french: Peul, links=no; ha, Fulani or Hilani; pt, Fula, links=no; wo, Pël; bm, Fulaw) are one of the largest ethnic groups in the Sahel and West Africa, widely dispersed across the region. ...
from
Cameroon Cameroon (; french: Cameroun, ff, Kamerun), officially the Republic of Cameroon (french: République du Cameroun, links=no), is a country in west-central Africa. It is bordered by Nigeria to the west and north; Chad to the northeast; the C ...
. found E-P2 (xM35, xM2) in 18.2% of 88 Ethiopians. found E-P2 (xM35, xM2) in Ethiopian athletes and control groups and reported the following results; General control : 4%(4/95), Arsi control : 8%(7/85), 5-10K : 22%(5/23) and Track and Field: 11%(2/11).


Phylogenetics


Phylogenetic history

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.


Research publications

The following research teams per their publications were represented in the creation of the YCC tree.


Phylogenetic trees

This phylogenetic tree of haplogroup subclades is based on the YCC 2008 treeKarafet2008 and subsequent published research.


See also


Genetics


Y-DNA E subclades


Y-DNA backbone tree


References


Sources for conversion tables

* * * * * * * *


Additional sources

* * * * * * * * * * {{Refend


External links


Y-DNA Haplogroup E and Subclades from ISOGGBritish Isles DNA ProjectE1b1.org – International Y-DNA project of Haplogroup E1b1 and its Subclades
E ca:Haplogrup E del cromosoma Y humà de:Haplogruppe E (Y-DNA) es:Haplogrupo E ADN-Y fr:Haplogroupe E (Y-ADN)