The chickpea chlorotic dwarf virus (CpCDV) (from the genus Mastrevirus and family Geminiviridae) tomato leaf curl New Delhi (ToLCNDV) Begomovirus represent an important threat to different crops worldwide, as they are emerging viruses in Asian continent, were introduced Mediterranean region 2012, then reported Morocco 2017 2018. present study addresses dispersion of CpCDV ToLCNDV evaluates gene...

A functional capsid protein (CP) is essential for host plant infection and insect transmission in monopartite geminiviruses. We studied two defective genomic DNAs of tomato yellow leaf curl virus (TYLCV), Sic and SicRcv. Sic, cloned from a field-infected tomato, was not infectious, whereas SicRcv, which spontaneously originated from Sic, was infectious but not whitefly transmissible. A single a...

ABSTRACT The worldwide spread of Geminiviruses and its vector has been attributed to the high rate recombination, mutation, presence alternate hosts, transport plant material, global human activity along with trade, new agricultural practices climate change; therefore, most severe viral diseases among crops have grown in almost all regions world, including cassava Africa, cotton leaf curl disea...

Tomato (Solanum lycopersicum L.), an economically important crop is host to many whitefly transmitted geminiviruses including tomato leaf curl virus (ToLCV). Genetically engineering resistance of pathogen through Post-transcriptional gene silencing (PTGS/RNAi) a powerful strategy that can provide alternative existing methods producing resistant plants. We cloned and characterized ToLCV-replicas...

Cassava mosaic disease (CMV), caused by one or a combination of cassava mosaic geminiviruses, is ranked among the most important constraints to profitable and efficient production of cassava. Effective control measures require in-depth knowledge of the viral causative agent. Using rolling-circle amplification and unique enzymes, the full genome of two species of cassava mosaic geminivirus isola...