B4a1a

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B4a1a is a mitochondrial (maternal) haplogroup downstream of B4a1, formed about 8,400 years ago, defined by 4 mutations; TheYtree curates 82 sub-clades and 61 samples under this lineage (Personal 5 / Scientific 15 / Ancient 41).

Key facts

Upstream lineageB4a1

Downstream sub-clades82

Defining mutations4

TMRCA~8,400 yr · 8.4 kya

AliasesYFull B4a1a · FTDNA B4a1a

Samples

61Samples in lineage

5Personal

15Scientific

41Ancient

Papua New Guinea 26中国 12Palau 7Micronesia 4Guam 2Singapore 2New Zealand 2Thailand 2

Representative ancient samples (aDNA)

I430442900-500 BPaDNA
I430422900-500 BPaDNA
I438822900-500 BPaDNA
I426522900-500 BPaDNA

FAQ

What is haplogroup B4a1a?

When did B4a1a form?

B4a1a formed about 8,400 years ago.

Where are B4a1a samples mainly from?

TheYtree curates 61 samples under this lineage, mainly from Papua New Guinea、中国、Palau.

How do I attach my sample to B4a1a?

Register and use the Free Submit tool to submit your maternal haplogroup or mutations; it will be placed on the corresponding maternal tree.

← Back to the maternal haplogroup