“…an ecological issue; think potato famine, but on a global scale. Martin says if there’s increasing dominance by a few genetic lineages of crops, then the global agricultural system becomes increasingly susceptible to pests or diseases. He points to a deadly fungus that continues to devastate banana plantations around the world as an example.”
Read 2019 press release from University of Toronto here: https://utsc.utoronto.ca/news-events/breaking-research/small-number-crops-are-dominating-globally-and-thats-bad-news-sustainable