Smallholder farmers, with support from Bioversity International and partners, have now put these varieties at the heart of their communities.
Meet some of the people who have become fruit tree custodians in this short video.
Read 'Roots of People' to find out more about this project:
'Fruit trees and their custodians' is one of the farmers stories in our series to mark Rio+20 - 'A fork in the Road - meeting farmers on the road to Rio'.
Find out more and follow our campaign blog here :