There's an article in the NEJM from 2002 reporting something similar [1] - at least to me as a layman. Since the linked PNAS paper is paywalled, can anyone comment on what's actually new with this announcement?
In 2002 one person was found. Now they have 17 different people from three families and they were able to analyze the pattern of transmission across generations.
This article explains better: https://arstechnica.com/science/2018/11/plot-twist-mitochond...
Not well-versed in genetics, but isn't it just possible that this finding could be explained by casting some doubt on who the father actually is? If the mitochondrial DNA came from a father with a different mother, it could look like it came from a different father? that sort of thing.
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[ 4.2 ms ] story [ 25.7 ms ] thread[1] Paternal Inheritance of Mitochondrial DNA https://www.nejm.org/doi/full/10.1056/NEJMoa020350
...but not impossible: https://en.wikipedia.org/wiki/Lydia_Fairchild