Developing broad-spectrum resistance in cassava against viruses causing the cassava mosaic and the cassava brown streak diseases.

ABSTRACT: Growing cassava in Africa requires resistance against the viruses causing cassava mosaic disease (CMD) and the viruses causing cassava brown streak disease (CBSD). A dominant CMD2 resistance gene from a West African cassava landrace provides strong resistance against the cassava mosaic viruses. However, resistance against cassava brown streak viruses is limited to cassava varieties that show tolerance to the disease. A recently identified cassava germplasm that cannot be infected with cassava brown streak viruses provides a new source of the resistance required to protect cassava from CBSD. We present a synopsis of the status of virus resistance in cassava and report on the research to combine resistance against CBSD and CMD. We improve the lengthy and erratic screening for CBSD resistance

SUBMITTER: Sheat S 

PROVIDER: S-EPMC9909537 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature