Potato R1 resistance gene confers resistance against Phytophthora infestans in transgenic tomato plants

Tomato is challenged by several pathogens which cause loss of production. One such pathogen is the oomycete Phytophthora infestans which is able to attack all the aerial parts of the plant. Although a wide range of resistance sources are available, genetic control of this disease is not yet successf...

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Bibliographic Details
Published in:European journal of plant pathology 2010-10, Vol.128 (2), p.233-241
Main Authors: Faino, Luigi, Carli, Paola, Testa, Antonino, Cristinzio, Gennaro, Frusciante, Luigi, Ercolano, Maria Raffaella
Format: Article
Language:English
Subjects:
Agriculture
Biological and medical sciences
Biomedical and Life Sciences
copy number
dna fragments
Ecology
efficient
expression
Fundamental and applied biological sciences. Psychology
Fungal plant pathogens
Gene expression
late blight resistance
Life Sciences
Lycopersicon esculentum
mosaic-virus
Pathogens
Phytopathology. Animal pests. Plant and forest protection
Plant Pathology
Plant resistance
Plant Sciences
Potatoes
Proteins
real-time pcr
tobacco
Tomatoes
transformation
Transgenic plants
zygosity
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Summary:Tomato is challenged by several pathogens which cause loss of production. One such pathogen is the oomycete Phytophthora infestans which is able to attack all the aerial parts of the plant. Although a wide range of resistance sources are available, genetic control of this disease is not yet successful. Pyramiding R-genes through genetic transformation could be a straightforward way to produce tomato and potato lines carrying durable resistance to P. infestans . In this work the R1 potato gene was transferred into tomato lines. The tomato transgenic lines were analyzed by using q-RT-PCR and progeny segregation to determine the gene copy number. To test the hypothesis that R1 represents a specifically regulated R-gene, transgenic tomato plants were inoculated with P. infestans isolate 88133 and IPO. All the plants containing the R1 gene were resistant to the late blight isolate IPO-0 and susceptible to isolate 88133. These results provide evidence for specific activation of the R1 gene during pathogen challenge. Furthermore, evidence for enhancement of PR-1 gene expression during P. infestans resistance response was obtained.
ISSN:0929-1873
1573-8469
DOI:10.1007/s10658-010-9649-2