Diseases

Viral Mosaics of Solanum lycopersicum x Solanum pimpinellifolium

Solanum lycopersicum x Solanum pimpinellifolium

Viral mosaics manifest in this interspecific hybrid as chlorosis and leaf deformation caused by ToMV and PepMV. The hybrid serves as an important source of genetic resistance, including the introgression of the Tm-2² gene for tomato mosaic virus control.

In the reference 4 varieties crop Tomato, where this is mentioned in the description.

For the Solanum lycopersicum x Solanum pimpinellifolium interspecific hybrid, the primary threats are tomato mosaic virus and pepino mosaic virus. Symptoms of infection include mosaic discoloration and chlorosis of the leaf blades, deformation leading to filiform leaves, as well as the development of streak in mixed infections, which results in stunted growth and necrotic changes on the fruit.

In breeding practice, this hybrid is used as a key donor of resistance genes. To control tomato mosaic virus, the Tm-2² gene is actively introgressed into the hybrid genome, the presence of which is verified using specific molecular markers. Regarding pepino mosaic virus, research is underway to find methods of inactivating susceptibility genes to develop resistant lines, reflecting the hybrid's role in establishing comprehensive phytopathological protection for tomatoes.

General information about the subject — on the page Viral mosaic diseases.

Sources8

Varieties of Tomato mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.