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Haplogroup S-B254

From Wikipedia, the free encyclopedia
Haplogroup S (B254)
Possible place of originPossibly Oceania
AncestorK2b1
DescendantsS1 (B255); S2 P378
Defining mutationsB254, Z33355

Haplogroup S also known as S-B254 is a human Y-DNA haplogroup, defined by the SNPs B254 and Z33355.[1] Until 2016, it was known as Haplogroup S1.

S-M254 is the most common haplogroup among males in the Papua New Guinea Highlands. It is also relatively common in some parts of Oceania, Wallacea and among indigenous Australians.[citation needed]

In a major correction to the phylogenetic tree during 2016, Haplogroup S-M230 was "demoted" from the position of basal clade S*, becoming S1a1b, while S-B254 was "promoted" in its place to the level of S*.[citation needed]

It has two primary subclades: S1 (B255) and S2 (P378).[1] The existence of a third subclade, defined by the SNP, P336 has not been confirmed.

Prevalence

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In a study conducted among ~300 individuals who had ancestry in the Papua New Guinea Highlands, 66 of them had ancestry under S-B254.[2]

Footnotes

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  1. ^ a b International Society of Genetic Genealogy (ISOGG; 2017), Y-DNA Haplogroup Tree 2015 (24 March 2017).
  2. ^ Karmin, Monika; Flores, Rodrigo; Saag, Lauri; Hudjashov, Georgi; Brucato, Nicolas; Crenna-Darusallam, Chelzie; Larena, Maximilian; Endicott, Phillip L; Jakobsson, Mattias; Lansing, J Stephen; Sudoyo, Herawati; Leavesley, Matthew; Metspalu, Mait; Ricaut, François-Xavier; Cox, Murray P (2022-03-02). Mulligan, Connie (ed.). "Episodes of Diversification and Isolation in Island Southeast Asian and Near Oceanian Male Lineages". Molecular Biology and Evolution. 39 (3). doi:10.1093/molbev/msac045. ISSN 0737-4038. PMC 8926390. PMID 35294555.