Functionally, what vital role do pure wild Red Junglefowl populations serve for the global poultry industry?

Answer

They act as a genetic reservoir for disease resistance

Pure wild populations possess untapped genetic diversity that could hold the key to breeding resistance back into commercial domestic stocks if a new avian disease emerges.

Functionally, what vital role do pure wild Red Junglefowl populations serve for the global poultry industry?
speciesbirdanimalstatusjunglefowl