In case you hadn’t gathered from all of the posts about the Rothamsted wheat trials, I have a bit of a soft spot for wheat. Wheat isn’t just globally important (as one of the Big Three staples, providing around 20% of our calories and a decent amount of protein for a cereal), it’s also really interesting. It has three genomes, making it incredibly genetically diverse, and therefore able to grow in a really wide variety of climates. That also means that it can undergo some nifty genetic changes: if one copy of a gene starts to evolve in a potentially-cool-but-potentially-hazardous way, there’s usually another ‘back up’ copy, allowing more divergent evolution than in a diploid like rice.
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