There are lots of citruses missing; the ones in the chart are only the ones I could find reliable values for (from the sources at the bottom). I'll add more if I can find other reliable sources. For what it's worth, I think the etrog is basically a pure citron variety.
Yeah, that's definitely an issue. If I get a chance, I'll curate images to add!
they discuss that, they were not hybridized to the same extent. They do discuss the key lime ancestry as orthogonal, it would be cool to use a tetrahedron instead to show that.
Wong et al. (2024) "A general and efficient representation of ancestral recombination graphs" https://doi.org/10.1093/genetics/iyae100
Also, the "click to show search results" is cool but fails for "Arizona Citron" in obvious ways.
Yeah, that's definitely an issue. If I get a chance, I'll curate images to add!
Nevermind, they have the "Sevillan Sour Orange" and a few other sour oranges