What is haplogroup B4a1?
B4a1 is a mitochondrial (maternal) haplogroup downstream of B4a, formed about 25,600 years ago, defined by 1 mutations; TheYtree curates 100 sub-clades and 284 samples under this lineage (Personal 30 / Scientific 196 / Ancient 58).
When did B4a1 form?
B4a1 formed about 25,600 years ago.
Where are B4a1 samples mainly from?
TheYtree curates 284 samples under this lineage, mainly from 中国、Papua New Guinea、Vietnam.
How do I attach my sample to B4a1?
Register and use the Free Submit tool to submit your maternal haplogroup or mutations; it will be placed on the corresponding maternal tree.
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