January 2021

Effectiveness of pyramided genes in conferring resistance to anthracnose disease in common bean populations

Anthracnose disease (Colletotrichum lindemuthianum (Sacc. et. Magn) Lams. Scrib.) is one of the most devastating diseases that constrain common bean production in Uganda. A cascading pedigree pyramiding scheme was used to develop common bean populations to evaluate the effectiveness of pyramided and single resistance genes (Co-42, Co-43, Co-5, and Co-9) on disease development. Detached leaf trifoliates of F4:6 genotypes...

Author(s): Kiryowa M., Nkalubo S. T., Mukankusi C., Male A, Gibson P., Tukamuhabwa P. and Rubaihayo P.  

February 2021

QTL mapping for resistance to Cercospora sojina in ‘Essex’ × ‘Forrest’ soybean (Glycine max L.) lines

Frogeye leafspot (FLS), caused by Cercospora sojina, is observed as red-brown lesions on leaves that can coalesce and decrease the photosynthetic ability of soybeans. The average yield loss due to Frogeye Leaf Spot is estimated at approximately 40% in established fields, whereas 100% incidence was previously recorded. QoI inhibitor fungicides were considered an effective control method, but the pathogen quickly evolved...

Author(s): Kelsey R. McAllister, Yi-Chen Lee and Stella K. Kantartzi