Molecular studies on the interactions between African cassava mosaic virus (ACMV) and East African cassava mosaic virus (EACMV-UG) infecting cassava (Manihot esculenta Crantz) [Elektronische Ressource] / Saadia Naseem

Molecular studies on the interactions between African cassava mosaic virus (ACMV) and East African cassava mosaic virus (EACMV-UG) infecting cassava (Manihot esculenta Crantz) Von der Naturwissenschaftlichen Fakultät der Gottfried Wilhelm Leibniz Universität Hannover zur Erlangung des Grades Doktorin der Naturwissenschaften - Dr. rer. nat. - genehmigte Dissertation von M.Phil. M.Sc. Saadia Naseem geboren am 31.05.1980 in Faisalabad, Pakistan 2011 Referent: Prof. Dr. Edgar Maiß Korreferent: Prof. Dr. H.-J. Jacobsen Tag der Promotion: 30. November 2010 “In gratitude to my lovely parents who have encouraged me; to my husband ‘Zahid’ & my daughter ‘Bakhtawar’ who have endured me” Abstract Cassava mosaic disease (CMD) caused by whitefly transmitted cassava mosaic viruses from the genus begomovirus is a most serious impediment to cassava cultivation in Africa and India. While several diverse begomoviruses are implicated in CMD in Africa, African cassava mosaic virus (ACMV) widespread in the continent and East African cassava mosaic virus Uganda (EACMV-UG) now present in East and central Africa present the principle components of the disease. Both viruses have an overlapping geographic distribution and when present, mixed infections frequently occur.