Haplogroup A-P305

Haplogroup A1
Possible time of origin	161,300 years BP[1]
Possible place of origin	Africa
Ancestor	A0-T
Descendants	A1a and A1b
Defining mutations	P305

Haplogroup A-P305 also known as A1 is a Human Y-chromosome DNA haplogroup. Like its parent haplogroup haplogroup A0-T (A-L1085), A1 includes the vast majority of living human males. It emerged in Africa approximately 161,300 years ago. ^[1] By comparison, members of its sole sibling subclade, haplogroup A0 – the only other primary subclade of haplogroup A0-T – are found mostly in

Basal, undivergent A-P305* is largely restricted to populations native to Africa, though a handful of cases have been reported in Europe and Western Asia. A-P305* is found at its highest rates in Bakola Pygmies (South Cameroon) at 8.3% and Berbers from Algeria at 1.5%^[2] and in Ghana.^[3] The clade also achieves high frequencies in the Bushmen hunter-gatherer populations of Southern Africa, followed closely by many Nilotic groups in Eastern Africa. However, haplogroup A's oldest sub-clades are exclusively found in Central-Northwest Africa, where it, and consequently Y-chromosomal Adam, is believed to have originated about 140,000 years ago.^[2] The clade has also been observed at notable frequencies in certain populations in Ethiopia, as well as some Pygmy groups in Central Africa.

Footnotes

1 2 https://www.yfull.com/tree/A1/
1 2 Cruciani F, Trombetta B, Massaia A, Destro-Bisol G, Sellitto D, Scozzari R (Jun 2011). "A revised root for the human Y chromosomal phylogenetic tree: the origin of patrilineal diversity in Africa". American Journal of Human Genetics. 88 (6): 814–8. doi:10.1016/j.ajhg.2011.05.002. PMC 3113241. PMID 21601174.
↑ Scozzari R, Massaia A, D'Atanasio E, et al. (2012). "Molecular dissection of the basal clades in the human Y chromosome phylogenetic tree". PLOS ONE. 7 (11): e49170. doi:10.1371/journal.pone.0049170. PMC 3492319. PMID 23145109.

Phylogenetic tree of human Y-chromosome DNA haplogroups ^{[χ 1]}^{[χ 2]}

A0-T ^{[χ 3]}

A1 ^{[χ 4]}

A1b

A1b1

F1

F2

F3

GHIJK

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

Footnotes

↑ 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. PMID 24166809.
↑ International Society of Genetic Genealogy (ISOGG; 2015), Y-DNA Haplogroup Tree 2015. (Access date: 1 February 2015.)
↑ Haplogroup A0-T is also known as A-L1085 (and previously as A0'1'2'3'4).
↑ Haplogroup A1 is also known as A1'2'3'4.
↑ Haplogroup LT (L298/P326) is also known as Haplogroup K1.
↑ Between 2002 and 2008, Haplogroup T-M184 was known as "Haplogroup K2". That name has since been re-assigned to K-M526, the sibling of Haplogroup LT.
↑ Haplogroup K2a (M2308) and its primary subclade K-M2313 were separated from Haplogroup NO (F549) in 2016. (This followed the publication of: Poznik GD, Xue Y, Mendez FL, et al. (2016). "Punctuated bursts in human male demography inferred from 1,244 worldwide Y-chromosome sequences". Nature Genetics. 48 (6): 593–9. doi:10.1038/ng.3559. PMC 4884158. PMID 27111036. In the past, other haplogroups, including NO (M214) and K2e had also been identified with the name "K2a".
↑ Haplogroup K2b (M1221/P331/PF5911) is also known as Haplogroup MPS.
↑ Haplogroup K2e (K-M147) was previously known as "Haplogroup X" and "K2a" (but is a sibling subclade of the present K2a).
↑ 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 K2b1 (P397/P399) is also known as Haplogroup MS, but has a broader and more complex internal structure.
↑ Haplogroup P (P295) is also klnown as K2b2.
↑ 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.)

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[yfull-1] 1 2 https://www.yfull.com/tree/A1/

[Cruciani2011-2] 1 2 Cruciani F, Trombetta B, Massaia A, Destro-Bisol G, Sellitto D, Scozzari R (Jun 2011). "A revised root for the human Y chromosomal phylogenetic tree: the origin of patrilineal diversity in Africa". American Journal of Human Genetics. 88 (6): 814–8. doi:10.1016/j.ajhg.2011.05.002. PMC 3113241. PMID 21601174.

[Scozzari2012-3] Scozzari R, Massaia A, D'Atanasio E, et al. (2012). "Molecular dissection of the basal clades in the human Y chromosome phylogenetic tree". PLOS ONE. 7 (11): e49170. doi:10.1371/journal.pone.0049170. PMC 3492319. PMID 23145109.

[vanOven2014-4] 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. PMID 24166809.

[ISOGG2015-5] International Society of Genetic Genealogy (ISOGG; 2015), Y-DNA Haplogroup Tree 2015. (Access date: 1 February 2015.)

[A0-T-6] Haplogroup A0-T is also known as A-L1085 (and previously as A0'1'2'3'4).

[A1-7] Haplogroup A1 is also known as A1'2'3'4.

[LT-8] Haplogroup LT (L298/P326) is also known as Haplogroup K1.

[K2-9] Between 2002 and 2008, Haplogroup T-M184 was known as "Haplogroup K2". That name has since been re-assigned to K-M526, the sibling of Haplogroup LT.

[K2a-10] Haplogroup K2a (M2308) and its primary subclade K-M2313 were separated from Haplogroup NO (F549) in 2016. (This followed the publication of: Poznik GD, Xue Y, Mendez FL, et al. (2016). "Punctuated bursts in human male demography inferred from 1,244 worldwide Y-chromosome sequences". Nature Genetics. 48 (6): 593–9. doi:10.1038/ng.3559. PMC 4884158. PMID 27111036. In the past, other haplogroups, including NO (M214) and K2e had also been identified with the name "K2a".

[K2b-11] Haplogroup K2b (M1221/P331/PF5911) is also known as Haplogroup MPS.

[K2e-12] Haplogroup K2e (K-M147) was previously known as "Haplogroup X" and "K2a" (but is a sibling subclade of the present K2a).

[K-M2313-13] 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)

[K2b1-14] Haplogroup K2b1 (P397/P399) is also known as Haplogroup MS, but has a broader and more complex internal structure.

[P-15] Haplogroup P (P295) is also klnown as K2b2.

[S-16] Haplogroup S, as of 2017, is also known as K2b1a. (Previously the name Haplogroup S was assigned to K2b1a4.)

[M-17] Haplogroup M, as of 2017, is also known as K2b1b. (Previously the name Haplogroup M was assigned to K2b1d.)

Haplogroup A1
Possible time of origin	161,300 years BP^[1]
Possible place of origin	Africa
Ancestor	A0-T
Descendants	A1a and A1b
Defining mutations	P305