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Evolution of the O alleles of the human ABO blood group gene

Evolution of the O alleles of the human ABO blood group gene

 Rhesusnegative.net0
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Allele O phylogenetic analysis suggests that the most frequent silencing mutation (deletion of a G in exon 6) appeared once in human evolution in the ancient O02 allele lineage and that allele O01 resulted from an interallele exchange between O02 and A101. Assuming constancy of evolutionary rate, diversification of the representative alleles of the three human ABO lineages (A101, B101, and O02) was estimated at 4.5 to 6 million years ago.

https://pubmed.ncbi.nlm.nih.gov/15104652/

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