Virus tolerance, plant growth, and field performance of transgenic tomato plants expressing coat protein from tobacco mosaic virus
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BioTechnology v. 6, no. 4, p. 403-409615015Summary: Two transgenic tomato plants that express the coat protein (CP) of the common (U1) TMV str. were produced from cultivar VF36 using gene transfer techniques. CP-expressing plants were partially resistant to infection and symptom development caused by TMV and tomato mosaic virus (ToMV) strs L, 2 or 22. Strs 2 and 22 normally overcome the natural resistance genes present in manycommercial tomato cultivars. In the field no more than 5% of the CP-expressing plants inoculated with TMV exhibited visual systemic disease symptoms by fruit harvest compared with 99% of the VF36 plants. Lack of visual symptoms was associated with lack of virus accumulation in
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Two transgenic tomato plants that express the coat protein (CP) of the common (U1) TMV str. were produced from cultivar VF36 using gene transfer techniques. CP-expressing plants were partially resistant to infection and symptom development caused by TMV and tomato mosaic virus (ToMV) strs L, 2 or 22. Strs 2 and 22 normally overcome the natural resistance genes present in manycommercial tomato cultivars. In the field no more than 5% of the CP-expressing plants inoculated with TMV exhibited visual systemic disease symptoms by fruit harvest compared with 99% of the VF36 plants. Lack of visual symptoms was associated with lack of virus accumulation in
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