Haplogroup S1a (Y-DNA)

Haplogroup S1a
Possible place of originMaritime Southeast Asia or Oceania
AncestorS1 (S-B255)
DescendantsS-P405
Defining mutationsZ41335, Z41336, Z41337, Z41338, Z41339, Z41340, Z41341

Haplogroup S1a is a human Y-DNA haplogroup, defined by SNPs Z41335, Z41336, Z41337, Z41338, Z41339, Z41340, and Z41341.

S1a is found primarily in Melanesia (especially in Papua New Guinea), Micronesia, Maritime Southeast Asia and among indigenous Australians.[1]

As of 2017, it includes an unnamed primary subclade referred to by ISOGG as "S1a~" (P405),[1] [2][3] (which was previously known as K2b1a). The "~" symbol is ISOGG's way of indicating that an unverified and as-yet unnamed immediate ancestor may exist.

Its secondary subclades include: S1a1 (Z42413), S1a2~ (P79, P307) and S1a3 (P315).

Before 2016, S1a1b (M230, P202, P204) was known as Haplogroup S* (and before that as Haplogroup K5). (In 2016, haplogroup S-B254 was "promoted" to S*, from its previous position of S1.)

The "sibling" clades of S1a include: S1b (B275, Z33756, Z33757, Z33758, Z33759), S1c (Z41926, Z41927, Z41928, Z41929, Z41930) and S1d (SK1806).

  1. ^ a b Cite error: The named reference isogg2017 was invoked but never defined (see the help page).
  2. ^ "PhyloTree y - Minimal y tree".
  3. ^ Karafet TM, Mendez FL, Sudoyo H, Lansing JS, Hammer MF (June 2014). "Improved phylogenetic resolution and rapid diversification of Y-chromosome haplogroup K-M526 in Southeast Asia". Eur J Hum Genet. 23 (3): 369–373. doi:10.1038/ejhg.2014.106. PMC 4326703. PMID 24896152.