Transmission of plant viruses by aphid vectors

Ng, Jillian; Perry, Keith L.

doi:10.1111/j.1364-3703.2004.00240.x

Cited by 369 publications

(275 citation statements)

References 47 publications

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“…It can cause both direct and indirect damage by feeding on plants, by honeydew contamination or by transmitting a large number of plant viruses. 1,2) Due to the extensive and frequent use of pesticides, this pest has developed a high level of resistance to some classes of insecticides and has become an unmanageable pest. Resistance patterns have been well studied for several types of insecticides such as organophosphates, carbamates, and pyrethroids.…”

Section: Introductionmentioning

confidence: 99%

The cross-resistance patterns and biochemical characteristics of an imidacloprid-resistant strain of the cotton aphid

et al. 2015

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The imidacloprid-resistant strain of Aphis gossypii (RF 60 ) was further selected with imidacloprid to establish the more resistant strain (RF 75 ). After the selection for 15 generations, the resistance ratio relative to the susceptible strain increased from 66.60 to 72.60. The RF 75 strain showed different levels of cross-resistance to all the insecticides tested. Synergistic and metabolic enzyme assays suggested that carboxylesterase and cytochrome P450 may play important roles in the imidacloprid resistance. © Pesticide Science Society of Japan

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Section: Introductionmentioning

confidence: 99%

The cross-resistance patterns and biochemical characteristics of an imidacloprid-resistant strain of the cotton aphid

et al. 2015

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“…MP plays an important role in cell to cell movement of the virus. While coat protein is required for encapsidation of the genomic RNAs into virus particles, important in aphid transmission [7,30] and affecting symptom expression [42,49]. CMV strains are divided into two subgroups I and II [3,31,33] and subgroup I is subdivided into IA and IB based on nucleotide sequence of the 3 0 untranslated region of RNA3 [37].…”

Section: Introductionmentioning

confidence: 99%

Biological and Molecular Characterization of Cucumber mosaic virus Subgroup II Isolate Causing Severe Mosaic in Cucumber

et al. 2013

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Cucumber mosaic virus (CMV) has a wide host range causing severe damage in many important agricultural and ornamental crops. Earlier reports showed the prevalence of CMV subgroup I isolates in India. However, some recent reports point towards increasing incidence of subgroup II isolates in the country. The complete genome of a CMV isolate causing severe mosaic in cucumber was characterized and its phylogenetic analysis with other 21 CMV isolates reported worldwide clustered it with subgroup II strains. The genome comprised of RNA 1 (3,379 nucleotides), RNA 2 (3,038 nucleotides) and RNA 3 (2,206 nucleotides). The isolate showed highest homology with subgroup II isolates: 95.1-98.7, 87.7-98.0, and 85.4-97.1 % within RNA1, RNA2, and RNA3, respectively. RNA1 and RNA2 were closely related to the Japanese isolate while RNA3 clustered with an American isolate. Host range studies revealed that isolate showed severe mosaic symptoms on Nicotiana spp. and Cucumis spp. The isolate induced leaf deformation and mild filiform type symptoms in tomato. To best of our knowledge this is the first report of complete genome of CMV subgroup II isolate from India.

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“…Moreover, these signals alter the expression of inducible plant physiological factors involved in defense against pathogens (Van Der Westhuizen et al 1998;Fidantsef et al 1999). Aphids may also transmit various plant viruses through the saliva causing irrevocable damage to the plant (Martín et al 1997;Ng and Perry 2004).…”

Section: Introductionmentioning

confidence: 99%

Identification of candidate genes at the Dp-fl locus conferring resistance against the rosy apple aphid Dysaphis plantaginea

Dall’Agata

Pagliarani

Padmarasu

et al. 2018

Tree Genetics & Genomes

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The cultivated apple is susceptible to several pests including the rosy apple aphid (RAA; Dysaphis plantaginea Passerini), control of which is mainly based on chemical treatments. A few cases of resistance to aphids have been described in apple germplasm resources, laying the basis for the development of new resistant cultivars by breeding. The cultivar 'Florina' is resistant to RAA, and recently, the Dp-fl locus responsible for its resistance was mapped on linkage group 8 of the apple genome. In this paper, a chromosome walking approach was performed by using a 'Florina' bacterial artificial chromosome (BAC) library. The walking started from the available tightly linked molecular markers flanking the resistance region. Various walking steps were performed in order to identify the minimum tiling path of BAC clones covering the Dp-fl region from both the Bresistant^and Bsusceptibleĉ hromosomes of 'Florina'. A genomic region of about 279 Kb encompassing the Dp-fl resistance locus was fully sequenced by the PacBio technology. Through the development of new polymorphic markers, the mapping interval around the resistance locus was narrowed down to a physical region of 95 Kb. The annotation of this sequence resulted in the identification of four candidate genes putatively involved in the RAA resistance response.

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Transmission of plant viruses by aphid vectors

Cited by 369 publications

References 47 publications

The cross-resistance patterns and biochemical characteristics of an imidacloprid-resistant strain of the cotton aphid

The cross-resistance patterns and biochemical characteristics of an imidacloprid-resistant strain of the cotton aphid

Biological and Molecular Characterization of Cucumber mosaic virus Subgroup II Isolate Causing Severe Mosaic in Cucumber

Identification of candidate genes at the Dp-fl locus conferring resistance against the rosy apple aphid Dysaphis plantaginea

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