Identification of major QTLs associated with stable resistance of tomato cultivar ‘Hawaii 7996’ to Ralstonia solanacearum

Wang, Jaw‐Fen; Ho, F.I.; Truong, Hai Thi Hong; Huang, Shu‐Mei; Balatero, C.H.; Dittapongpitch, V.; Hidayati, Nurul

doi:10.1007/s10681-012-0830-x

Cited by 96 publications

(129 citation statements)

References 38 publications

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“…While some wild potato relatives are resistant, for example S. commersonii (53), 104 resistance is difficult to introduce into cultivated potato because of different ploidy 105 levels (33). Moreover, R3bv2 has been found virulent and very aggressive on most 106 bacterial wilt-resistant tomato genotypes that contain genes for quantitative resistance 107 (5, 67) (38,68). 108…”

Section: Introduction 42mentioning

confidence: 99%

Genome-Enabled Phylogeographic Investigation of the Quarantine Pathogen Ralstonia solanacearum Race 3 Biovar 2 and Screening for Sources of Resistance Against Its Core Effectors

et al. 2015

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Section: Introduction 42mentioning

confidence: 99%

Genome-Enabled Phylogeographic Investigation of the Quarantine Pathogen Ralstonia solanacearum Race 3 Biovar 2 and Screening for Sources of Resistance Against Its Core Effectors

et al. 2015

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“…However, loci providing quantitative resistance have been identified in tobacco (Qian et al 2012), tomato (Carmeille et al 2006;Wang et al 2013), and eggplant (Lebeau et al 2013). In potato, breeding programs for resistance to bacterial wilt have used wild species related to Solanum tuberosum as sources of resistance (Narancio et al 2013;Sequeira and Rowe 1969).…”

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confidence: 99%

A Novel, Sensitive Method to Evaluate Potato Germplasm for Bacterial Wilt Resistance Using a LuminescentRalstonia solanacearumReporter Strain

Zuluaga¹,

Ferreira²,

Pianzzola³

et al. 2014

MPMI

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Several breeding programs are under way to introduce resistance to bacterial wilt caused by Ralstonia solanacearum in solanaceous crops. The lack of screening methods allowing easy measurement of pathogen colonization and the inability to detect latent (i.e., symptomless) infections are major limitations when evaluating resistance to this disease in plant germplasm. We describe a new method to study the interaction between R. solanacearum and potato germplasm that overcomes these restrictions. The R. solanacearum UY031 was genetically modified to constitutively generate light from a synthetic luxCDABE operon stably inserted in its chromosome. Colonization of this reporter strain on different potato accessions was followed using life imaging. Bacterial detection in planta by this nondisruptive system correlated with the development of wilting symptoms. In addition, we demonstrated that quantitative detection of the recombinant strain using a luminometer can identify latent infections on symptomless potato plants. We have developed a novel, unsophisticated, and accurate method for high-throughput evaluation of pathogen colonization in plant populations. We applied this method to compare the behavior of potato accessions with contrasting resistance to R. solanacearum. This new system will be especially useful to detect latency in symptomless parental lines before their inclusion in long-term breeding programs for disease resistance.Bacterial wilt caused by Ralstonia solanacearum is one of the world's most devastating bacterial diseases of plants (Peeters et al. 2013). It is present worldwide, threatening food safety of small producers in tropical and subtropical areas, especially in China, Bangladesh, Bolivia, and Uganda (Martin and French 1985;Muthoni et al. 2012). However, because the pathogen disseminates easily to long distances via infected plant material (Hayward and Pegg 2013;Janse et al. 2004), there has been a recent spread of the disease to temperate regions (Genin and Boucher 2004). R. solanacearum exhibits an extremely wide host range, causing bacterial wilt on more than 200 plant species, including commercially important crops such as potato, tomato, and banana (Hayward 1991). Wilting symptoms are caused by extensive multiplication of the bacterium in the xylem vessels, which hinders water flow in the plant. In addition, the bacterium can colonize asymptomatically several weeds that act as pathogen reservoirs (Genin and Denny 2012) and survive in waterways and soil for long periods (Caruso et al. 2005;Elphinstone 2005). These facts, together with the lack of resistant commercial varieties in any of its hosts , render the control of bacterial wilt very challenging.R. solanacearum is considered a species complex, divided into four phylotypes which roughly reflect their geographic origin: phylotype I groups strains from Asia, phylotype II from the Americas, phylotype III from Africa, and phylotype IV from Indonesia (Peeters et al. 2013). Each phylotype is subdivided into different sequevars which are clus...

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“…R. solanacearum infects more than 200 species in 50 families (Hayward, 1991), including tomato, potato, eggplant, pepper, tobacco, banana, chilli andpeanut (French andSequeira, 1970). The seedling mortality caused by bacterial wilt in tomato is the main problem in most of tropical regions (Jaw-Fen Wang et al, 2012).…”

Section: Acceptedmentioning

confidence: 99%

Development and Characterization of Recombinant Inbreed Lines for Segregating Bacterial Wilt Disease in Tomato

resh¹,

Lingaiah²,

Renuka³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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Identification of major QTLs associated with stable resistance of tomato cultivar ‘Hawaii 7996’ to Ralstonia solanacearum

Cited by 96 publications

References 38 publications

Genome-Enabled Phylogeographic Investigation of the Quarantine Pathogen Ralstonia solanacearum Race 3 Biovar 2 and Screening for Sources of Resistance Against Its Core Effectors

Genome-Enabled Phylogeographic Investigation of the Quarantine Pathogen Ralstonia solanacearum Race 3 Biovar 2 and Screening for Sources of Resistance Against Its Core Effectors

A Novel, Sensitive Method to Evaluate Potato Germplasm for Bacterial Wilt Resistance Using a LuminescentRalstonia solanacearumReporter Strain

Development and Characterization of Recombinant Inbreed Lines for Segregating Bacterial Wilt Disease in Tomato

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