An in Vitro Study to Examine the Potential of Mutation Breeding to Create Resistance to Bacterial Wilt (Ralstonia Solanacearum) in Tomato

O’Herlihy, Eileen; Prestwich, Barbara M. Doyle; Wall, G. C.

doi:10.17660/actahortic.2012.935.14

Cited by 2 publications

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“…Its microarray analysis showed that 26 % of the up-regulated genes in protected plants are involved in the biosynthesis and signalling of abscissic acid and in addition 21 % of these genes are constitutively expressed in irregular xylem cellulose synthase mutants which present a high level of resistance. In tomato, O'Herlihy et al (2012) reported that bacterial wilt resistance in mutants was improved by 10-80 % over the control. Peiris et al (2009) developed 'M 127' as a bacterial wilt resistant variety using mutation.…”

Section: Use Of Mutation Breedingmentioning

confidence: 99%

Genetic approaches for mitigating losses caused by bacterial wilt of tomato in tropical islands

et al. 2015

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Bacterial wilt, caused by Ralstonia solanacearum (Smith, US Department of Agriculture, 12, 1-28, 1986) Yabuuchi et al. (Microbiology and Immunology, 39, 897-904, 1995) (formerly Pseudomonas solanacearum), causes 35-90 % yield loss in tomato production in hot-humid tropical regions. Commonly used strategies for minimizing incidence of bacterial wilt include choosing resistant varieties, cocopith based growing media, chemical methods, grafting on resistant rootstocks, application of biocontrol agents and field management practices. The cultivation of resistant varieties is the most appropriate and eco-friendly way to manage the soil borne diseases in crops but the same is not fitting well with bacterial wilt in tomato. In this review, a systematic analysis has been made on reaction of 526 genotypes of tomato to R. solanacearum pathogen tested over a 30 year period in Andaman Islands and identified 37 genotypes as highly resistant (HR), 58 as resistant (R) and 151 as moderate resistant (MR). None of the claimed resistant genotypes exhibited stable and durable resistance against this pathogen and no single genotype reported in HR category (after 2002) except only two genotypes in R category. The period for a genotype to shift from resistance to susceptible is very short because of pathogen evolution hence, it is necessary to constantly develop new resistant varieties in tomato against R. solanacearum. The review also suggests breeding strategies for rapid development of bacterial wilt resistant varieties in tomato in order to minimize the yield losses especially in the tropical conditions.

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Section: Use Of Mutation Breedingmentioning

confidence: 99%

Genetic approaches for mitigating losses caused by bacterial wilt of tomato in tropical islands

et al. 2015

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Breeding for resistance to bacterial wilt in Solanaceae crops: lessons learned and ways forward for Gboma eggplant (Solanum macrocarpon L.), a traditional African vegetable

Sossou,

Ayenan,

Schafleitner

et al. 2024

Euphytica

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Bacterial wilt (BW) is caused by Ralstonia solanacearum species complex (RSSC) and can lead to severe losses in a wide range of crops, including many traditional African vegetables (TAV). Given the critical role of TAV in African food security, investigations of BW incidence, distribution, and effective breeding strategies are needed to support public and private TAV breeding programs. In this review, we address key questions related to the diversity of BW pathogens, susceptible TAV hosts, distribution, incidence, breeding strategies, sources of resistance, and gaps in the development of resistant TAV varieties in Africa. We also discuss the potential of multiomics integration to enhance our understanding of the host plant defense system against BW in Solanaceae crops. We curated BW strain databases obtained from several online platforms, representing a total of 948 BW strains. Using a refined database, we highlighted the diversity of RSSC and TAV crops affected by RSSC in different regions of Africa. Out of 29 species documented to be affected by BW in Africa, ten are TAV, including widely consumed TAV such as Amaranths and nightshades. In addition, phylotypes I and III are reported to affect TAV, and the incidence can reach up to 72.4% in farmers’ fields. An overview of the first reports revealed that the disease has become a serious threat to TAV in the past decade. Finally, this review proposes a schematic map of possible avenues for successful breeding of BW-resistant TAV using Gboma eggplant as a case study.

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An in Vitro Study to Examine the Potential of Mutation Breeding to Create Resistance to Bacterial Wilt (Ralstonia Solanacearum) in Tomato

Cited by 2 publications

References 0 publications

Genetic approaches for mitigating losses caused by bacterial wilt of tomato in tropical islands

Genetic approaches for mitigating losses caused by bacterial wilt of tomato in tropical islands

Breeding for resistance to bacterial wilt in Solanaceae crops: lessons learned and ways forward for Gboma eggplant (Solanum macrocarpon L.), a traditional African vegetable

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