08/03/2025
I love learning things like this
: Potatoes Evolved From Tomatoes
A new study from a team at the Chinese Academy of Agricultural Sciences has traced the origins of the modern potato to a crossbreeding event with a tomato plant, which occurred around 9 million years ago in the South America's Andes mountains. Evolutionary biologists and genomic scientists analyzed 450 genomes from both cultivated and wild potato species.
The results revealed that an ancient ancestor of the wild tomato plant naturally bred with a plant called Etuberosum, the precursor to the modern potato. This new hybrid had the ability to grow tubers - the enlarged, edible part of the plant which grow underground, unlike tomatoes or Etuberosums. The study also decoded which genes were supplied by each ancient plant to create the new tuber-producer. This understanding could help scientists breed potatoes more resistant to disease and climate change in the future.
This map depicts the geographic distribution of Petota (Potato) (golden dots), Tomato (red dots), and Etuberosum (blue dots), based on verified georeferenced collection records.
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