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Viruses 2015, 7(5), 2518-2533; doi:10.3390/v7052518

Recessive Resistance Derived from Tomato cv. Tyking-Limits Drastically the Spread of Tomato Yellow Leaf Curl Virus

1
National Center for Vegetable Crops Research (CNPH), Embrapa Hortaliças, CP 218, 70359-970 Brasília-DF, Brazil
2
Department of Plant Pathology, University of Brasília (UnB), 70910-900 Brasília-DF, Brazil
3
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
4
Department of Cell Biology, University of Brasília (UnB), 70910-900 Brasília-DF, Brazil
*
Author to whom correspondence should be addressed.
Academic Editor: Thomas Hohn
Received: 24 March 2015 / Accepted: 13 May 2015 / Published: 21 May 2015
(This article belongs to the Section Viruses of Plants, Fungi and Protozoa)
View Full-Text   |   Download PDF [1181 KB, uploaded 21 May 2015]   |  

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. View Full-Text
Keywords: Begomovirus; Bemisia tabaci; epidemiology; virus resistance; Solanum lycopersicum; TYLCV Begomovirus; Bemisia tabaci; epidemiology; virus resistance; Solanum lycopersicum; TYLCV
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MDPI and ACS Style

Pereira-Carvalho, R.C.; Díaz-Pendón, J.A.; Fonseca, M.E.N.; Boiteux, L.S.; Fernández-Muñoz, R.; Moriones, E.; Resende, R.O. Recessive Resistance Derived from Tomato cv. Tyking-Limits Drastically the Spread of Tomato Yellow Leaf Curl Virus. Viruses 2015, 7, 2518-2533.

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