8/23/2023 0 Comments Tomato 2 leaves wageningentabaci is a complex consisting of at least 24 distinct species ( De Barro et al., 2011). tabaci is an invasive pest with global importance since more than 175 countries officially report the presence of B. In nature, TYLCV is transmitted exclusively by the sweet potato whitefly Bemisia tabaci (Genn.) in a persistent-circulative manner ( Gronenborn, 2007). chinense), tobacco ( Nicotiana tabacum), common bean ( Phaseolus vulgaris), petunia ( Petunia × hybrida), and lisianthus ( Eustoma grandiflora) ( Díaz-Pendón et al., 2010). lycopersicum), sweet pepper ( Capsicum annuum), chili pepper ( C. TYLCV has a wide host range that includes tomato ( S. TYLCD can be caused by a cluster of related virus species including tomato yellow leaf curl virus (TYLCV), which belongs to the genus Begomovirus of the Geminiviridae family. Infected susceptible tomato plants show symptoms that include yellowing, curling, and cupping of leaves, severe stunting and abortion of flowers and fruits, all of which can lead to yield reduction of up to 100% ( Abhary et al., 2007). Up till now, TYLCD is still one of the most devastating diseases of tomato. Tomato yellow leaf curl disease (TYLCD) has been a global constraint to tomato ( Solanum lycopersicum) production since the 1980s ( Moriones and Navas-Castillo, 2000). Taken together, we present a comprehensive overview on TYLCV resistance and susceptibility in wild tomato germplasm, and demonstrate how to study allelic variants of the cloned Ty-genes in TYLCV-resistant accessions. chilense accessions by applying virus-induced gene silencing and allele mining, leading to identification of a number of allele-specific polymorphisms. Further, we studied allelic variation of the Ty-1/ Ty-3 gene in few S. However, almost all of the tested accessions showed TYLCD symptoms. pimpinellifolium accessions were screened. Many symptomless accessions were also identified in S. chilense accessions remained symptomless. These symptomless accessions include 14 accessions from S. In addition, we screened 708 accessions from 13 wild tomato species using different inoculation assays (i.e., whitefly natural infection and Agrobacterium-mediated inoculation) from which 138 accessions exhibited no tomato yellow leaf curl disease (TYLCD) symptoms. In the current study, we summarized efforts on the screenings of wild tomato species for TYLCV resistance from various publications. In many cases, the accession numbers were either not provided in publications or not provided in a consistent manner, which led to redundant screenings. Many efforts have been focused on identification of resistance sources by screening wild tomato species. Tomato yellow leaf curl virus (TYLCV) is a virus species causing epidemics in tomato ( Solanum lycopersicum) worldwide. 4Gulf Coast Research and Education Center, University of Florida, Gainesville, FL, United States.3Instituto Universitario de Conservación y Mejora de la Agrodiversidad Valenciana, Ciudad Politécnica de la Innovación, Universitat Politècnica de València, Valencia, Spain.2Plant Breeding, Graduate School Experimental Plant Sciences, Wageningen University & Research, Wageningen, Netherlands. 1The Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China. Zhe Yan 1,2 Ana Pérez-de-Castro 3 Maria J.
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