We are used to valorising the mango as our ‘national fruit’ and rightly so, because of its all-India profile and many delicious varieties. People even fight about which ones are better.

Read more: US Seafood Chains, Ranked Worst To Best While sweet oranges (citrus × sinensis) led to hybrids like the grapefruit, it took generations of breeding to develop them. Breeders had to ...