Here is some interesting information on genes related to odor / earwax production. ABCC11 is one of them and possibly why many of us have odorless underarm sweat and changes to ear wax production.
“Individuals expressing the mutated form of this protein display a non-malodour phenotype
due to malodour precursor compounds failing to reach the axilla. The wild-type ABCC11
allele is prevalent among Europeans and Africans with the mutated G583A allele
widespread mainly in individuals of East Asian descent, particularly Chinese, Korean and
Japanese populations. The phenotypic effect of the G583A SNP was verified by Harker et
al. (2014) who associated a significantly lower axillary odour in individuals homozygous
for the mutated gene, which was biochemically connected to an almost complete absence
of the malodorants”
Study reveals structure of protein that transports body odor precursor. Funny that pharma is actually researching ways to block odor, perhaps another use for finasteride once they discover all of us who are affected…
https://cen.acs.org/analytical-chemistry/structural-biology/Study-reveals-structure-protein-transports/96/i29
Daniel Bawdon PHD seems to be the expert on the matter. He wrote his thesis on it.
Postdoctoral Research Paper on characterisation of the biochemical route to malodour production