Risk-assessment studies of virus-resistant transgenic plants (VRTPs) focussing on recombination of a plant virus with a transgenic sequence of a different virus should include a comparison of recombination frequencies between viruses in double-infected non-transgenic plants with those observed in singly infected transgenic plants to estimate recombination incidence in VRTPs. In this study, the ...

Potato virus Y (PVY) is an important plant pathogen causing considerable economic loss to potato production. Knowledge of the population genetic structure and evolutionary biology of the pathogen, particularly at a transnational scale, is limited but vital in developing sustainable management schemes. In this study, the population genetic structure and molecular evolution of PVY were studied us...

PeSMV was originally isolated in Argentina from diseased Capsicum annuum plants and classed as a possible member of the potyvirus group on the basis of morphological, biological, and immunological evidence (Feldman and Gracia, 1977). Although information concerning its economic significance is still imprecise, the virus is present in most pepperproducing areas and yields are drastically reduced...

Since the concept of pathogen derived resistance (PDR) was proposed in 1985, genetic transformation of plants to express virus-derived sequences has been used to engineer resistance to many viruses. This paper reviews PDR approaches to Potato virus Y (PVY, type member of the genus Potyvirus). PDR to viruses operates often through RNA-mediated resistance mechanisms that do not require protein ex...

Potato virus Y (PVY) is an economically important pathogen of potato as a vegetatively propagated crop. High resistance to all strains PVY determined by Ry-genes, which are introgressed into modern varieties from limited number sources ‒ Solanum stoloniferum Schlechtd. et Bche . , andigenum Juz. Buk., chacoense Bitt. Use new species and interspecific hybrids based on them provides for the expan...

We compared infection of Nicotiana benthamiana plants by the positive-sense RNA viruses Cucumber mosaic virus (CMV), Potato virus Y (PVY), and by a Potato virus X (PVX) vector, the latter either unaltered or expressing the CMV 2b protein or the PVY HCPro suppressors of silencing, at 25°C vs. 30°C, or at standard (~401 parts per million, ppm) vs. elevated (970 ppm) CO2 levels. We also assessed t...

The multifunctional protein helper component proteinase (HC-Pro) is thought to interfere with the activity of the 20S proteasome; however, no sites of interaction have been identified for either protein. Here, we first show that the Potato virus Y (PVY) HC-Pro protein can interact with three Arabidopsis 20S proteasome subunits (PAA, PBB, and PBE), using a yeast two-hybrid system and the bimolec...

Biber (Capsicum annuum L.)’de çok sayıda virüs enfeksiyona neden olmakta ve önemli ürün kayıplarına yol açmaktadır. Bu çalışma kapsamında, 2018 yılında Türkiye biber üretiminin büyük bir bölümünün gerçekleştirildiği Antalya, Manisa, Çanakkale, Samsun Bursa illerinde yetiştirilen alanlardan virüs-benzeri simptom sergileyen 616 adet örneği toplanmıştır. örnekler daha sonra Alfalfa mosaic virus (A...