Where did the yellow lemon originate? This remained a mystery for a long time, largely due to its polymorphism and inter-varietal diversity. The wild ancestor of the lemon had been elusive, leaving researchers to speculate that it might have been located in the Assam region, the Indo-Burmese region, or even China.
It wasn’t until 2016 that the mystery was unraveled. Phylogenetic studies, using the DNA of the lemon to trace its lineage, revealed that the yellow lemon originated in the Mediterranean. But here’s the twist: it was a hybrid, a fusion of the bitter orange and the citron, and this blend happened around the fifth millennium BC.