title: Recessive Resistance Derived from Tomato cv. Tyking-Limits Drastically the Spread of Tomato Yellow Leaf Curl Virus.
abstract: The tomato yellow leaf curl disease (TYLCD) causes severe damage to tomato (Solanum lycopersicum L.) crops throughout tropical and subtropical regions of the world. TYLCD is associated with a complex of single-stranded circular DNA plant viruses of the genus Begomovirus (family Geminiviridae) transmitted by the whitefy Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae). The tomato inbred line TX 468-RG is a source of monogenic recessive resistance to begomoviruses derived from the hybrid cv. Tyking F1. A detailed analysis of this germplasm source against tomato yellow leaf curl virus-Israel (TYLCV-IL), a widespread TYLCD-associated virus, showed a significant restriction to systemic virus accumulation even under continuous virus supply. The resistance was effective in limiting the onset of TYLCV-IL in tomato, as significantly lower primary spread of the virus occurred in resistant plants. Also, even if a limited number of resistant plants could result infected, they were less efficient virus sources for secondary spread owing to the impaired TYLCV-IL accumulation. Therefore, the incorporation of this resistance into breeding programs might help TYLCD management by drastically limiting TYLCV-IL spread.
authors.affiliation: National Center for Vegetable Crops Research (CNPH), Embrapa Hortaliças, CP 218, 70359-970 Brasília-DF, Brazil.|Department of Plant Pathology, University of Brasília (UnB), 70910-900 Brasília-DF, Brazil.|Institute for Mediterranean and Subtropical Horticulturev "La Mayora", Málaga University-Spanish National Reseach Council (IHSM-UMA-CSIC), "La Mayora" Experimental Station, 29750 Algarrobo-Costa, Málaga, Spain.
authors.forename: Rita C
authors.initials: RC
authors.lastname: Pereira-Carvalho
authors.affiliation: Institute for Mediterranean and Subtropical Horticulturev "La Mayora", Málaga University-Spanish National Reseach Council (IHSM-UMA-CSIC), "La Mayora" Experimental Station, 29750 Algarrobo-Costa, Málaga, Spain.
authors.forename: Juan A
authors.initials: JA
authors.lastname: Díaz-Pendón
authors.affiliation: National Center for Vegetable Crops Research (CNPH), Embrapa Hortaliças, CP 218, 70359-970 Brasília-DF, Brazil. maria.boiteux@embrapa.br.
authors.forename: Maria Esther N
authors.initials: ME
authors.lastname: Fonseca
authors.affiliation: National Center for Vegetable Crops Research (CNPH), Embrapa Hortaliças, CP 218, 70359-970 Brasília-DF, Brazil. leonardo.boiteux@embrapa.br.|Department of Plant Pathology, University of Brasília (UnB), 70910-900 Brasília-DF, Brazil. leonardo.boiteux@embrapa.br.
authors.forename: Leonardo S
authors.initials: LS
authors.lastname: Boiteux
authors.affiliation: Institute for Mediterranean and Subtropical Horticulturev "La Mayora", Málaga University-Spanish National Reseach Council (IHSM-UMA-CSIC), "La Mayora" Experimental Station, 29750 Algarrobo-Costa, Málaga, Spain. rfern@eelm.csic.es.
authors.forename: Rafael
authors.initials: R
authors.lastname: Fernández-Muñoz
authors.affiliation: Institute for Mediterranean and Subtropical Horticulturev "La Mayora", Málaga University-Spanish National Reseach Council (IHSM-UMA-CSIC), "La Mayora" Experimental Station, 29750 Algarrobo-Costa, Málaga, Spain. moriones@eelm.csic.es.
authors.forename: Enrique
authors.initials: E
authors.lastname: Moriones
authors.affiliation: Department of Cell Biology, University of Brasília (UnB), 70910-900 Brasília-DF, Brazil. rresende@unb.br.
authors.forename: Renato O
authors.initials: RO
authors.lastname: Resende
mesh_terms: D053839:Begomovirus / Q000276:immunology*; D060467:Disease Resistance; D018551:Solanum lycopersicum / Q000276:immunology*; D010935:Plant Diseases / Q000276:immunology* / Q000821:virology*
keywords: Begomovirus; Bemisia tabaci; Solanum lycopersicum; TYLCV; epidemiology; virus resistance