Potatoes and sweet potatoes are tubers. I started growing this year and learned a lot about it just from my backyard. No pollination
For example cucumbers not staple nor are peppers. Cucumbers need a bee or insect to pollinate unless the type that doesn’t. But they are low in calories so not staple and more perishable
"The flowers are wind-pollinated, with over 99% of pollination events being self-pollinations and the rest cross-pollinations.[6] "
No mention of ants, and the reference [6] says "Normally at anthesis, the lemma and palea are pushed apart temporally (lasting for 8–30 min) by lodicules swelling, and the pollen dehiscences from anthers and falls on the ovary to accomplish fertilization (de Vries, 1971)."