Realistically the wheat lucked out that we thought it was delicious. I like the theory that it started as a three way symbiotic relationship between wheat humans and yeast, with accidental beer being the reason we started planting the stuff to begin with.

Yup! The Botany of Desire. Good read.

Focuses on how apples, potatoes, tulips, and cannabis have all been vastly successful at being spread by humans because we find them useful.