Episode 56: Evolution, Genetics, and the Future of Coffee – A Conversation with Professor Andreas Tribsch.

In this episode, Tim speaks with Andreas Tribsch, a Professor of Botany at the University of Salzburg. Andreas brings a unique perspective as both an expert in plant evolution and a partner in an Austrian coffee shop, offering insights into the coffee plant from a biological and systematic viewpoint. We dive deep into the history of coffee, discussing how Coffea Arabica evolved as a coffee species in the highlands of Ethiopia roughly 350,000 - 600,000 years ago. Andreas explains the genetic complexity of Arabica, being the only tetraploid species in the coffee family, and how its narrow genetic base makes it both unique and vulnerable compared to other domesticated crops. Our conversation also covers the potential impacts of climate change on wild coffee populations, and the biological importance of diversification on coffee estates to ensure long-term resilience.   Music by my uncle Jens Wendelboe.