What fruits are pomelos related to?
Pomelo
The pomelo, Citrus maxima or Citrus grandis, is the largest citrus fruit from the Rutaceae family. It is a natural (non-hybrid) citrus fruit, similar in appearance to a large grapefruit, native to South and Southeast Asia. The pomelo is one of the original citrus species from which the rest of cultivated citrus hybridized. The popular fruit is used in many Chinese festive celebrations throughout Southeast Asia.
Citron
The citron is an old and original citrus species. There is molecular evidence that most cultivated citrus species arose by hybridization of a small number of ancestral types, including citron, pomelo, mandarin and to a lesser extent, papedas and kumquat. The citron is usually fertilized by self-pollination. This results in them displaying a high degree of genetic homozygosity, and it is the male parent of any citrus hybrid rather than a female one.