Scientist Rearrange Chaotic Citrus Family Tree

[Millet]

https://phys.org/news/2018-02-scientists-rearrange-chaotic-citrus-family.html

[mikkel]

the whole article
https://www.nature.com/articles/nature25447

[Lory]

Very interesting!

[Florian]

Excellent, thanks Millet!

[manfromyard]

.So poncirus is the only true one outside of the Citrus family proper?

[Ilya11]

In the Supplementary information  for this paper it is stated that :

In the nuclear genome tree, Poncirus is an outgroup of citrus while in the
chloroplast phylogeny Poncirus resides near the root of the tree. This observation is
compatible with the view that Poncirus is likely a descendent of an ancient hybrid of
citrus with an unknown parent, as suggested before.

[Citradia]

Maybe poncyrus is a product of the hardy rue plant bred with an ancient papeda. Rue is same family and has a multi-lobed leaf pattern like poncyrus, and makes tiny fruits that actually remind me of some of these lobed/sectioned shaped citranges I've seen. It's all very interesting.