Frequent Gain and Loss of Resistance against Tobacco Mosaic Virus in Nicotiana Species

Yuan, Xinjie; Yan, Chenghuan; Wu, Z.C.; Ren, Fanggang; Zhang, Hui; Baker, Barbara; Chen, Jiongjiong

doi:10.1016/j.molp.2015.09.001

Cited by 12 publications

(12 citation statements)

References 9 publications

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“…ELISA of these plants confirmed the presence of the virus in both the lower and the upper leaves. The obtained results are consistent with the observations of Valleau (1952); Gwynn (1977) and Yuan et al (2015), who screened Nicotiana species using TMV and stated that they may be used in tobacco breeding. Molecular analyses gave an overview of the occurrence of the N gene among selected species of Nicotiana.…”

supporting

confidence: 91%

“…Within the genus Nicotiana, excluding for N. glutinosa, the potential sources of TMV resistance are N. repanda, https://doi.org/10. 17221/81/2017-CJGPB N. gossei, N. langsdorfii, N. rustica (Valleau 1952;Gwynn 1977;Yuan et al 2015) andN. benthamiana, N. maritima, N. sanderae, N. velutina, N. acuminata, N. goodspeedii, N. forgetiana, N. nesophila, N. stocktonii (Van Dijk &Cuperus 1989;Yuan et al 2015).…”

mentioning

confidence: 99%

“…17221/81/2017-CJGPB N. gossei, N. langsdorfii, N. rustica (Valleau 1952;Gwynn 1977;Yuan et al 2015) andN. benthamiana, N. maritima, N. sanderae, N. velutina, N. acuminata, N. goodspeedii, N. forgetiana, N. nesophila, N. stocktonii (Van Dijk &Cuperus 1989;Yuan et al 2015). However, these reports do not provide the names of the TMV strains used for plant inoculation or the temperature settings of the experiments.…”

mentioning

confidence: 99%

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Reaction of Nicotiana species and cultivars of tobacco to Tobacco mosaic virus and detection of the N gene that confers hypersensitive resistance

Depta¹,

Kursa²,

Doroszewska³

et al. 2018

Czech J. Genet. Plant Breed.

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Tobacco mosaic virus (TMV) brings increasing losses in the cultivation of tobacco. Sixty-two cultivars of tobacco and eleven species of Nicotiana were evaluated for resistance to TMV. Biological tests at two temperature ranges, DAS-ELISA and molecular markers were applied to assess the resistance to TMV. Most cultivars of tobacco showed susceptibility (S) to TMV, two were tolerant (T), while others revealed a hypersensitive response (HR). Hypersensitivity, determined by the N gene, occurred only at a temperature below 22°C. At a temperature above 28°C, all the cultivars showed mosaic discolorations or extensive necrosis. The reaction of the Nicotiana species was dependent on growth conditions. At 22°C, the reactions of sensitivity, tolerance and hypersensitivity to TMV were all observed, whereas above 28°C the species showed systemic necrotic symptoms. N. gossei was an exception because hypersensitivity occurred regardless of the thermal conditions. The resistance of this species was not conditioned by the N gene, which suggests that N. gossei could be an additional genetic resource for tobacco breeding.

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supporting

confidence: 91%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Reaction of Nicotiana species and cultivars of tobacco to Tobacco mosaic virus and detection of the N gene that confers hypersensitive resistance

Depta¹,

Kursa²,

Doroszewska³

et al. 2018

Czech J. Genet. Plant Breed.

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“…Interestingly, a recent study has shown that several members of Nicotiana section Alatae also carry a functional orthologue of the N’ gene, which recognizes the CP of TMV [69]. Members of section Alatae that carry a functional orthologue include N. alatae (PI42334), N. forgetiana , and N. langsdorffii .…”

Section: Discussionmentioning

confidence: 99%

“…It may be that an N or N’ homologue might condition resistance in Nicotiana to tombusvirids. Yuan and coworkers [69] reported that Nicotiana species carried from one to up to 22 distinct N homologues, whereas Balaji et al [70] found evidence for approximately 14 N homologues in N. clevelandii and N. glutinosa , in addition to the N gene. Significantly, silencing of the N gene present in N. edwardsonii suppressed HR induced by inoculation of TBSV and CymRSV, as well as TMV, suggesting that a Tombusvirus R gene shares some homology with the N gene.…”

Section: Discussionmentioning

confidence: 99%

Tracing the Lineage of Two Traits Associated with the Coat Protein of the Tombusviridae: Silencing Suppression and HR Elicitation in Nicotiana Species

Adhab

Ángel²,

Rodriguez

et al. 2019

Viruses

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In this paper we have characterized the lineage of two traits associated with the coat proteins (CPs) of the tombusvirids: Silencing suppression and HR elicitation in Nicotiana species. We considered that the tombusvirid CPs might collectively be considered an effector, with the CP of each CP-encoding species comprising a structural variant within the family. Thus, a phylogenetic analysis of the CP could provide insight into the evolution of a pathogen effector. The phylogeny of the CP of tombusvirids indicated that CP representatives of the family could be divided into four clades. In two separate clades the CP triggered a hypersensitive response (HR) in Nicotiana species of section Alatae but did not have silencing suppressor activity. In a third clade the CP had a silencing suppressor activity but did not have the capacity to trigger HR in Nicotiana species. In the fourth clade, the CP did not carry either function. Our analysis illustrates how structural changes that likely occurred in the CP effector of progenitors of the current genera led to either silencing suppressor activity, HR elicitation in select Nicotiana species, or neither trait.

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Experimental Introgression from Nicotiana Species to Cultivated Tobacco

Berbeć

2024

A Century of Interspecific Hybridization and Introgression in Tobacco

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Frequent Gain and Loss of Resistance against Tobacco Mosaic Virus in Nicotiana Species

Cited by 12 publications

References 9 publications

Reaction of Nicotiana species and cultivars of tobacco to Tobacco mosaic virus and detection of the N gene that confers hypersensitive resistance

Reaction of Nicotiana species and cultivars of tobacco to Tobacco mosaic virus and detection of the N gene that confers hypersensitive resistance

Tracing the Lineage of Two Traits Associated with the Coat Protein of the Tombusviridae: Silencing Suppression and HR Elicitation in Nicotiana Species

Experimental Introgression from Nicotiana Species to Cultivated Tobacco

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