This article was about genetically breeding the toxins out of cotton seed. If there are fruits and vegetables in the United States that haven’t been selectively bred to enhance one trait or another, I’m not aware of what it is. That is what they’re talking about doing in this article. Even the seeds you buy to plant to grow your own vegetables have been selectively bred.
Cotton has never been a source of food. However, if you would check the labels of the processed foods in you supermarkets, cotton oil has been added to a lot of foods such as peanut butter. Deliberating breeding fruits and vegetables for desirable traits is different.
For example, wild strawberries are very small and wild citrus is bitter; these fruits have been bred for larger size and better taste naturally rather than in a lab by genetic manipulation.