This orange is used as a rootstock in groves of sweet orange. The blood orange is a mutant of the sweet orange. The navel orange is a mutation of regular sweet orange. A spontaneous backcross of the grapefruit and sweet orange then resulted in the orangelo. Common orange juice is made from the sweet orange. The Valencia orange is a sweet orange. The citrange is a citrus hybrid of the sweet orange and the trifoliate orange. It first appeared as a sport on a Selecta sweet orange tree in Bahia, Brazil. The earliest mention of the sweet orange in Chinese literature dates from 314 B.C. The citranges are a group of intergeneric sweet orange x trifoliate orange hybrids. "sinensis" for the sweet orange, "C. x aurantium" var. The Ellendale is a sweet orange/mandarin cross. This was developed to become the dominant species across the world, a sweet orange. The sweet orange has had its full genome sequenced. Spanish travelers introduced the sweet orange into the American continent.