חיפוש מתקדם
Phytopathology
Lapidot, M., Department of Vegetable Research, Institute of Plant Sciences, Volcani Center, Bet Dagan 50250, Israel
Ben-Joseph, R., Department of Vegetable Research, Institute of Plant Sciences, Volcani Center, Bet Dagan 50250, Israel
Cohen, L., Department of Vegetable Research, Institute of Plant Sciences, Volcani Center, Bet Dagan 50250, Israel
Machbash, Z., Department of Vegetable Research, Institute of Plant Sciences, Volcani Center, Bet Dagan 50250, Israel
Levy, D., Hazera Genetics, Mivhor, M.P. Lachish Darom, 79134, Israel
We have developed a scale of differential hosts that enables the determination and comparison of level of resistance to Tomato yellow leaf curl virus (TYLCV) expressed by resistant tomato lines or by individual plants in a segregating population. The scale is composed of seven different homozygous tomato genotypes that exhibit different levels of TYLCV resistance, ranging from fully susceptible to highly resistant. The differential hosts composing the scale were inoculated with TYLCV under greenhouse conditions. Four weeks after inoculation the plants were evaluated for disease symptom severity, and virus DNA liter was determined. The different genotypes were arranged in the scale according to symptom severity score. The different genotypes were then tested under different environmental conditions, inoculated at different ages, and tested in a field experiment assaying TYLCV-induced yield reduction. While the symptom severity score of each individual resistant genotype changed under different environmental conditions, the relative position on the scale did not alter, except for one genotype. Thus, to evaluate disease resistance of a given tomato genotype, the genotype in question should be inoculated alongside the differential hosts composing the scale, and within 4 weeks one can determine the relative level of resistance of the tested genotype. © 2006 The American Phytopathological Society.
פותח על ידי קלירמאש פתרונות בע"מ -
הספר "אוצר וולקני"
אודות
תנאי שימוש
Development of a scale for evaluation of Tomato yellow leaf curl virus resistance level in tomato plants
96
Lapidot, M., Department of Vegetable Research, Institute of Plant Sciences, Volcani Center, Bet Dagan 50250, Israel
Ben-Joseph, R., Department of Vegetable Research, Institute of Plant Sciences, Volcani Center, Bet Dagan 50250, Israel
Cohen, L., Department of Vegetable Research, Institute of Plant Sciences, Volcani Center, Bet Dagan 50250, Israel
Machbash, Z., Department of Vegetable Research, Institute of Plant Sciences, Volcani Center, Bet Dagan 50250, Israel
Levy, D., Hazera Genetics, Mivhor, M.P. Lachish Darom, 79134, Israel
Development of a scale for evaluation of Tomato yellow leaf curl virus resistance level in tomato plants
We have developed a scale of differential hosts that enables the determination and comparison of level of resistance to Tomato yellow leaf curl virus (TYLCV) expressed by resistant tomato lines or by individual plants in a segregating population. The scale is composed of seven different homozygous tomato genotypes that exhibit different levels of TYLCV resistance, ranging from fully susceptible to highly resistant. The differential hosts composing the scale were inoculated with TYLCV under greenhouse conditions. Four weeks after inoculation the plants were evaluated for disease symptom severity, and virus DNA liter was determined. The different genotypes were arranged in the scale according to symptom severity score. The different genotypes were then tested under different environmental conditions, inoculated at different ages, and tested in a field experiment assaying TYLCV-induced yield reduction. While the symptom severity score of each individual resistant genotype changed under different environmental conditions, the relative position on the scale did not alter, except for one genotype. Thus, to evaluate disease resistance of a given tomato genotype, the genotype in question should be inoculated alongside the differential hosts composing the scale, and within 4 weeks one can determine the relative level of resistance of the tested genotype. © 2006 The American Phytopathological Society.
Scientific Publication
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