In order to eliminate this mutation from breeding lines and to avoid the potential of producing affected pups, breeding of known carriers is not recommended. (pawprintgenetics.com)
From there, the researchers worked to create breeding lines for new varieties that would capture the original flavor of the chiles while making improvements to help farmers stay competitive. (denverpost.com)
And why would you want to see pure bred lines become extinct? (onegreenplanet.org)