The branch of mtDNA K1 with the defining mutation reported only from Europe so far

In the Suplementary Materials of the article “Ancient Mitogenomes Reveal the Origins and Genetic Structure of the Neolithic Shimao Population in Northern China” Chinese researchers paid attention to the female mtDNA K1h (K1), which has a very rare mutation T7751G, which seems to be reported only from Europe so far. The sample was reported in the article “Piotrowska et al., 2019”:

European_MG646124 Polish European Poland Poland MG646124 K1 Piotrowska et al., 2019