Panama disease in stress-tolerance, yield, or other beneficial traits necessary for commercial varieties. Nevertheless, these efforts are leading to the best control measure for Panama disease of banana. Recently, an R gene (RGA2) was transformed into Cavendish bananas which confers disease resistance to Fusarium wilt tropical race 4. This is the first case of successful resistance in the field and is a promising step towards preventing the loss of the Cavendish cultivars that are a huge portion of banana export production and subsistence of many communities. One major impediment to breeding bananas is polyploidy; Gros Michel and Cavendish bananas are triploid and
Cream of the Crop Motown chief Berry Gordy appended the Supremes billing to the single so as to create more publicity for Ross' exit from the group. Another selection of note is "The Young Folks" the charting b-side of "No Matter What Sign You Are" from "Let the Sunshine In", later covered by The Jackson 5. "Cream of the Crop" also includes covers of songs by The Beatles ("Hey Jude") and Bob Dylan ("Blowin' in the Wind", also covered by Stevie Wonder). Since another Ross-led Supremes single or album had not been planned, "Cream of the Crop" was made up mostly of vaulted material.