An alternative hypothesis on a hot topic

A paper published in PNAS late last year claims proof of paternal inheritance of mitochondria. As every student who took Genetics at Temple will tell you, that would be quite a paradigm-shifting discovery. But perhaps there is a difference between evidence for mtDNA and evidence for mitochondria themselves? Very glad to have been offered an opportunity to contribute to this discussion.
https://www.frontiersin.org/articles/10.3389/fgene.2019.00518/full
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