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Diseases

Viral mosaic diseases

Viral mosaic diseases are a group of systemic infectious plant diseases manifesting in variegated leaf coloration, tissue deformation, and reduced productivity. These diseases are caused by various pathogens, spread by pests and through contact, and are virtually untreatable.

Mentioned in descriptions 22 022 varieties reference book.

Viral mosaic diseases are characterized by the appearance of alternating spots of different colors on plant organs, including light rings, star-shaped spots, or stripes. In addition to specific variegated coloration, affected plants often exhibit leaf blade curling, wrinkling, and crinkling, as well as stunted overall growth and deformation of fruits and flowers. Sometimes the infection is latent, where visual symptoms are absent, yet crop productivity is significantly reduced.

Pathogen dissemination occurs through vectors such as aphids, true bugs, mites, and nematodes, as well as through mechanical transfer of sap from diseased plants during care, pruning, or physical contact. Infection is possible via seeds, planting material, soil, and crop residues. The intensity of infection development depends on weather conditions, particularly temperature regimes, and crop density, which facilitates rapid virus transmission.

Varietal resistance to mosaics is determined by the presence of specific or recessive genes affecting translation initiation. During breeding and variety testing, resistance is evaluated under artificial inoculation on infectious disease plots. Modern diagnostics for controlling viral load include enzyme-linked immunosorbent assay (ELISA) and polymerase chain reaction (PCR), while field resistance is determined by a variety's ability to not accumulate the pathogen throughout the growing season.

Sources10

Breakdown by crop

Found in these crops

Varieties that feature this in their description

Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.

OPLOT

Application submitted

Solanum lycopersicum L. · Tomato

RAMIRO ARNEDO, S.A.

ES
1 record

HTR2432003

Application submitted

Solanum lycopersicum L. · Tomato

Axia NL B.V.

NL
2 records

Nessi F1

Active

Solanum lycopersicum L. · Tomato

Shevchenko Igor

UA
2 records

Julioso

Application submitted

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
2 records

Gennaro

Active

Solanum lycopersicum L. var. lycopersicum · Tomato

Consorzio Sativa Societa Cooperativa Agricola

IT
1 record

Montale

Active

hybrids between Solanum lycopersicum L. and S. habrochaites S. Knapp & D.M. Spooner

MERIDIEM SEEDS S.L.

IT
1 record

Solanum lycopersicum L. var. lycopersicum · Tomato

ISI SEMENTI SPA

IT
1 record

MALBEC

Application submitted

Capsicum annuum L. · Bell pepper

RAMIRO ARNEDO, S.A.

ES
1 record

Kapto

Withdrawn

Capsicum annuum L. · Bell pepper

Manier Tohumculuk Ltd. sti.

NL
1 record

Solanum lycopersicum L. var. lycopersicum · Tomato

ISI SEMENTI SPA

IT
1 record

JARAMA

Application submitted

Cucumis sativus L. · Cucumber

CAPITAL GENETIC EBT, S.L.

ES
1 record

Danai F1

Terminated

Capsicum annuum L. · Bell pepper

Dymchenko Tetiana Mykolaivna, Muzhylko Viktor Valentynovych,

UA
1 record

Anazeria

Application submitted

Lactuca sativa L. · Lettuce

Enza Zaden Beheer B.V.

NL
2 records

CONSTANTINO

Application submitted

Cucurbita pepo L. · Field pumpkin

RAMIRO ARNEDO, S.A.

ES
1 record

CLAMOROSO

Application submitted

Solanum lycopersicum L. · Tomato

CAPITAL GENETIC EBT, S.L.

ES
1 record

Bonelle

Application submitted

Solanum lycopersicum L. · Tomato

Syngenta Crop Protection AG

NL
2 records

73-909

Active

Solanum lycopersicum L. · Tomato

Kees Reinink

UA
2 records

Zviezda Vostoka zhovtaia F1

Application submitted

Capsicum annuum L. · Bell pepper

Kyrylov Mykhailo Ivanovych, Dubinina Iryna Mykolaivna, Dubinin Serhii Volodymyrovych,

UA
2 records

Cucumis sativus L. · Cucumber

Petr Klapshte, Petr Horal, Yirzhi Horal,

UA
2 records

Zouk F1

Terminated

Solanum lycopersicum L. · Tomato

Sylvain Bontems

UA
1 record

Zviezda Vostoka F1

Application submitted

Capsicum annuum L. · Bell pepper

Kyrylov Mykhailo Ivanovych, Dubinina Iryna Mykolaivna, Dubinin Serhii Volodymyrovych,

UA
2 records

Capsicum annuum L. · Bell pepper

Kyrylov Mykhailo Ivanovych, Dubinina Iryna Mykolaivna, Dubinin Serhii Volodymyrovych,

UA
2 records

Zubr`onok F1

Terminated

Cucumis sativus L. · Cucumber

Muzhylko Viktor Valentynovych, Husieva Liudmyla Ivanivna, Horokhovs`kyi Vitalii Fedorovych,

UA
1 record

Solanum lycopersicum L. var. lycopersicum · Tomato

PRZEDSIEBIORSTWO NASIENNICTWA OGRODNICZEGO I SZKOLKARSTWA

LT
1 record

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