Haplogroup BT
Appearance
Haplogroup BT | |
---|---|
CT | |
Defining mutations | Page65.1/SRY1532.1/SRY10831.1, M42, M91, M94, M139, M299, P97, V21, V29, V31, V59, V64, V102, V187, V202, V216, V235 |
Haplogroup BT M91, also known as Haplogroup A1b2 (and formerly as A4, BR and BCDEF), is a Y-chromosome haplogroup. BT is a subclade of haplogroup A1b (P108) and a sibling of the haplogroup A1b1 (L419/PF712).[2]
Ancient DNA
Later Stone Age individuals excavated at Fingira Rock, Malawi, dated to around 6100 years ago (2/2 males), and at Mount Hora, Malawi, dated to around 8000 years ago (1/1 males), all belonged to Y haplogroup BT(xCT).[3][a]
Distribution
haplogroup K
and its subclades, such as haplogroups K*, LT, K2b*, MS, NO, P, Q and R).
Phylogenetics
The
ISOGG tree since 2014 has treated M91 as the defining mutation of BT.[5]
- BM60, M181, P85, P90
- CT P9.1, M168, M294
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.
See also
- Conversion table for Y chromosome haplogroups
- Genetic genealogy
- Haplogroup D (Y-DNA)
- Haplogroup DE (Y-DNA)
- Haplogroup
- Haplotype
- Human Y-chromosome DNA haplogroup
- Molecular phylogenetics
- Paragroup
- Subclade
- Y-chromosome haplogroups in populations of the world
- Y-DNA haplogroups by ethnic group
- Y-DNA haplogroups in populations of Sub-Saharan Africa
Notes
- ^ In other words, the haplogroups did not belong to haplogroup CT, but may have belonged to haplogroup B.
References
- PMID 25770088.
- ^ PMID 21601174.
- PMID 28938123.
- PMID 22892538.
- ^ Y-DNA Haplogroup A and its Subclades - 2012 (BT as subclade of A1b-P108) Y-DNA Haplogroup A and its Subclades - 2014 (BT as subclade of A1b-P108); Y-DNA Haplogroup Tree 2015 (BT-M91 listed as subclade of A1a-M31). ISOGG has listed M42 as a mutation characteristic (but not defining) of BT since 2012.
- ISOGG(2012)).
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