The natural history of epiphytic plant species has been extensively studied. However, little is known about the physiology and genetics of epiphytism. This is due to difficulties associated with growing epiphytic plants and the lack of tools for genomics studies and genetic manipulations. In this study, tubers were generated from 223 accessions of 42 wild potato Solanum species, including the e...

18 Potato virus Y is the most economically important potato viral pathogen. We aimed at 19 unraveling the roles of small RNAs (sRNAs) in the complex immune signaling network 20 controlling the establishment of tolerant response of potato cv. Désirée to the virus. We 21 constructed a sRNA regulatory network connecting sRNAs and their targets to link sRNA 22 level responses to physiological proce...

1 Swapping nematode and virus resistance in potato 2 3 4 Sequence exchange between homologous NB-LRR genes converts virus resistance into 5 nematode resistance, and vice versa 6 7 Erik Slootweg 1 , Kamila Koropacka 1, $ , Jan Roosien 1 , Robert Dees 2, ± , Hein Overmars 1 , Rene 8 Klein Lankhorst 3 , Casper van Schaik 1 , Rikus Pomp 1 , Liesbeth Bouwman 1 , Johannes Helder 1 , 9 Arjen Schots 2 ...

1 Swapping nematode and virus resistance in potato 2 3 4 Sequence exchange between homologous NB-LRR genes converts virus resistance into 5 nematode resistance, and vice versa 6 7 Erik Slootweg 1 , Kamila Koropacka 1, $ , Jan Roosien 1 , Robert Dees 2, ± , Hein Overmars 1 , Rene 8 Klein Lankhorst 3 , Casper van Schaik 1 , Rikus Pomp 1 , Liesbeth Bouwman 1 , Johannes Helder 1 , 9 Arjen Schots 2 ...

Infection of plant cells by potyviruses induces the formation of cytoplasmic inclusions ranging in size from 200 to 1000 nm. To determine if the ability to form these ordered, insoluble structures is intrinsic to the potyviral cytoplasmic inclusion protein, we have expressed the cytoplasmic inclusion protein from Potato virus Y in tobacco under the control of the chrysanthemum ribulose-1,5-bisp...

M. I. ANDRADE*, J. RICARDO, A. NAICO, A. ALVARO, G. S. MAKUNDE, J. LOW, R. ORTIZ AND W. J. GRÜNEBERG 1 International Potato Center, IIAM Av. FPLM 2698, Maputo, Mozambique 2 Instituto de Investigação Agraria de Mozambique Av. FPLM 2698, Maputo, Mozambique 3 International Potato Center, IIAM, Gurúè, Mozambique CIP, ILRI Campus, Utiru, Nairobi, Kenya Department of Plant Breeding, Swedish Universit...

The multifunctional helper component proteinase (HCpro) of potyviruses (genus Potyvirus; Potyviridae) shows self-interaction and interacts with other potyviral and host plant proteins. Host proteins that are pivotal to potyvirus infection include the eukaryotic translation initiation factor eIF4E and the isoform eIF(iso)4E, which interact with viral genome-linked protein (VPg). Here we show tha...

A reliable method to eliminate tobacco rattle virus (TRV) from viruliferous Paratrichodorus allius populations was developed. This virus is vectored by P. allius in the Pacific Northwest and causes corky ringspot disease (CRS) of potato. The viruliferous nematodes that were reared on 'Vernema' alfalfa or '770' scotch spearmint for at least 3 months did not transmit TRV to 'Samsun NN' tobacco, a...