Cassava green mite is a dry-season pest that usually feeds on the underside of young leaves causing leaf chlorosis, stunted growth, and root yield reduction by 80%. Since cassava leaves and roots serve as a primary staple food source, a decline in cassava yield can lead to household food, nutrition, and income insecurity. To evaluate the existence of CGM resistance alleles in the available germplasm, a diversity panel of 845 advanced breeding lines obtained from IITA, CIAT, and the National Root Crops Research Institute were evaluated for CGM severity, leaf pubescence, leaf retention, stay green, shoot tip compactness, and shoot tip size.
This work is an output of the “Next Generation Cassava Breeding Project” which is supported by the UK Department for International Development, in partnership with the Bill & Melinda Gates Foundation
Ezenwaka, L., P. Del Carpio Dunia, J. Jannink, I. Rabbi, E. Danquah, I. Asante, A. Danquah, E. Blay, and C. Egesi. 2018. Genome-Wide Association Study of Resistance to Cassava Green Mite Pest and Related Traits in Cassava. Crop Sci. 58:1907-1918. doi:10.2135/cropsci2018.01.0024
Genome-Wide Association Study of Resistance to Cassava Green Mite Pest and Related Traits in Cassava