Tolerance to Tomato Yellow Leaf Curl Virus Derived from Lycopersicon peruvianum

Pilowsky, M.; Cohen, S.

doi:10.1094/pd-74-0248

Cited by 94 publications

(45 citation statements)

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“…Although Pilowsky and Cohen (2000) tested this accession for resistance to TYLCV and obtained a consistent resistant response in the 21 tested plants, our results suggest the existence of genetic variability for the genes of resistance in the set of plants used in this study. The different levels of resistance in all generations tested points to a quantitative nature of the resistance, which agrees with the reported genetic control for the resistance in some S. peruvianum accessions (Pilowsky and Cohen, 1990).…”

Section: Discussionsupporting

confidence: 89%

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Initial development of a set of introgression lines from Solanum peruvianum PI 126944 into tomato: exploitation of resistance to viruses

et al. 2013

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A set of introgression lines from S. peruvianum PI 126944 into the genetic background of cultivated tomato (S. lycopersicum) is being developed. Several generations were derived from three interspecific hybrids previously obtained. A lot of crosses and embryo rescue were required to obtain until the third backcross, due to the high incompatibility existing between tomato and PI 126944. Crosses between F1 plants allowed the obtaining of a pseudo-F2 generation. The same procedure was followed until pseudo-F6 generation. Additional crosses between plants of different generations were made in order to increase progeny. Among a total number of 263 molecular markers tested, 105 resulted polymorphic between tomato and PI 126944. This set of polymorphic markers consisted in 90 Simple Sequence Repeats and 15 Cleaved Amplified Polymorphic Sequences. Generations available were genotyped with these markers, observing a progressive reduction in the S. peruvianum genome in the most advanced. A reduction of incompatibility was achieved as a consequence of the S. peruvianum genome reduction. In addition, S. peruvianum genome was almost completely represented considering the different plants of the most advanced generations, so the set of ILs will be basically developed from them. Tomato yellow leaf curl virus (TYLCV) and Tomato spotted wilt virus (TSWV) resistance was evaluated in some generations, having been successfully introgressed and expressed into tomato background.

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Section: Discussionsupporting

confidence: 89%

“…Ty-1 (Zamir et al 1994), Ty-3 (Ji et al 2007 and Ty-4 (Ji et al 2009) come from S. chilense, Ty-2 was identified in S. habrochaites (Hanson et al 2006), and Ty-5 in S. peruvianum (Anbinder et al 2009). Quantitative resistance has also been reported derived from S. peruvianum (Pilowsky and Cohen, 1990;Vidavsky et al 1998).…”

Section: Introductionmentioning

confidence: 88%

Initial development of a set of introgression lines from Solanum peruvianum PI 126944 into tomato: exploitation of resistance to viruses

et al. 2013

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“…This cultivar reacted to TYLCV by mild intervenal chlorosis (Pilowski et al 1989). The tolerance expressed by TY-20 was found to be controlled by five recessive genes (Pilowski and Cohen 1990). The relatively mild symptoms expressed by this cultivar were accompanied by low accumulation of viral DNA in the infected plants (Rom et al 1992).…”

Section: Breeding In Tomatomentioning

confidence: 93%

Management of Bemisia tabaci Whiteflies

Horowitz

Antignus

Gerling

2011

The Whitefly, Bemisia Tabaci (Homoptera: Aleyrodidae) Interaction With Geminivirus-Infected Host Plants

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This review presents and discusses the merits of the methodologies available for implementing integrated pest management (IPM) of B. tabaci populations: namely, chemical control with selective insecticides, biological control, crop plant resistance and physical/mechanical methods. Insecticides, by their poisonous nature, are often harmful to natural enemies and therefore, disruptive to overall pest management. However, the more modern materials that are effective for B. tabaci control are relatively specific to the target pests, and therefore are less harmful to natural enemies and the environment; consequently, they are also more suitable for integrative combination with other methods. Natural enemies, by themselves, usually do not form a suitable solution of B. tabaci-caused problems. However, their occurrence and use greatly reduces the pest's populations. Since viral plant diseases transmitted by B. tabaci are not curable, the principal tactics for their management should be based on prevention of transmission by physical-mechanical methods and/or on utilization of host-plant resistance. The correct implementation of natural enemies will help to reduce whitefly numbers, which can then be more readily managed using cultural and, only if necessary, chemical countermeasures.

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“…Genetic resistance or tolerance to TYLCV has been introgressed in tomato in order to develop resistant cultivars since the early 1970s, and some such cultivars are already commercially available. The first commercial tolerant cultivar, TY20, carrying tolerance from l. peruvianum (Pilowsky & Cohen 1990), and the later, more advanced lines, showed delayed symptoms and lower accumulation of viral DNA (Friedmann et al 1998). An established breeding line, with resistance derived from l. hirsutum, showed total immunity to whitefly mediated inoculation (Vidavsky & Czosnek 1998).…”

Section: Breeding For Resistancementioning

confidence: 99%

The viral etiology of tomato yellow leaf curl disease - a review

Glick¹,

Levy²,

Gafni³

2009

Plant Prot. Sci.

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Glick E., Levy Y., Gafni Y. (2009): The viral etiology of tomato yellow leaf curl disease -a review. Plant Protect. Sci., 45: 81-97.Tomato yellow leaf curl disease (TYLCD) is one of the most devastating plant diseases in the world. As a result of its continuing rapid spread, it now afflicts more than 30 tomato growing countries in the Mediterranean basin, southern Asia, Africa, and South, Central and North America. The disease is caused by a group of viral species of the genus Begomovirus, family Geminiviridae (geminiviruses), referred to as Tomato yellow leaf curl virus (TYLCV). These are transmitted by an insect vector, the whitefly Bemisia tabaci, classified in the family Aleyrodidae. The genome of TYLCV generally consists of a single circular single-stranded (ss) DNA molecule, with only one exception in which two components were identified. It encodes six open reading frames, only one of which codes for the coat protein (CP) that represents a building block of the viral particle. TYLCV, like all other members of the Geminiviridae, has geminate particles, apparently consisting of two incomplete T = 1 icosahedra joined together to produce a structure with 22 pentameric capsomers and 110 identical CP subunits. Close to 50 years of intensive research into TYLCV epidemics has been conducted to find solutions to the severe problem caused by this virus. To date, breeding for resistance appears to be the best approach to controlling this disease, although only partially resistant varieties are commercially available. Since the virus consists of a ssDNA that replicates in the host-cell nucleus, the molecular mechanisms involved in its nuclear import have been the focus of our studies in recent years and results, as well as prospects, are discussed in this review. In addition, we describe our recent finding of a suppressor of gene silencing encoded by one of the TYLCV-Isr genes. This paper provides an overview of the most outstanding achievements in TYLCV research that may lead to more effective control strategies.

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Tolerance to Tomato Yellow Leaf Curl Virus Derived from Lycopersicon peruvianum

Cited by 94 publications

References 0 publications

Initial development of a set of introgression lines from Solanum peruvianum PI 126944 into tomato: exploitation of resistance to viruses

Initial development of a set of introgression lines from Solanum peruvianum PI 126944 into tomato: exploitation of resistance to viruses

Management of Bemisia tabaci Whiteflies

The viral etiology of tomato yellow leaf curl disease - a review

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