Random Amplified Polymorphic DNA (RAPD DNA) has proven useful in sorting out the relationships of the C. pepo species, varieties, and cultivars, showing that few, if any, modern cultivars have their origins with C. texana. They are associated with C. fraterna or a still unknown ancestral specimen in southern Mexico.
Yellow summer squash (one of several cultivated Cucurbita pepo) is a type of yellow-coloured summer squash.
Cucurbita radicans | Cucurbita pepo | Cucurbita maxima | Cucurbita foetidissima | Cucurbita digitata |