Sylvita
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
4 records
Diseases
Lettuce mosaic virus
Lactuca sativa L.
The main viral disease of lettuce is Lettuce mosaic virus (LMV), which is transmitted by seeds and aphids. The disease causes leaf deformation, chlorotic spotting, and prevents the formation of a full-grown head.
In the reference 907 varieties crop Lettuce, where this is mentioned in the description.
The pathogen is Lettuce mosaic virus (LMV), belonging to the genus Potyvirus. There are four pathotype groups of isolates (I, II, III, IV) that differ in their interaction with resistance genes. In young plants, the infection manifests as curling, a mosaic pattern, and stunted growth, whereas in mature specimens, necrotic spots and deformation of the outer leaves develop.
In lettuce breeding, the recessive gene mo1 with alleles mo1¹ and mo1² is used for protection against LMV. These genes encode the translation initiation factor eIF4E, blocking the spread of the virus within plant tissues. Dominant genes Mo2, Mo3, and Mo4 have also been described, but their use in commercial varieties is limited due to the virus overcoming them or challenges in the breeding process.
General information about the subject — on the page Viral mosaic diseases.
Varieties of Lettuce 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.
Sammir
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Picnic
TerminatedLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Florigo
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Calaflor
Application submittedLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
5 records
Chandor
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Joconda
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
3 records
Maïko
ActiveLactuca sativa L. · Lettuce
Clause (FR)
FR
3 records
Ermosa
Protection expiredLactuca sativa L. · Lettuce
Graines Gautier SA (FR)
FR
4 records
Vardac
TerminatedLactuca sativa L. · Lettuce
Clause Semences SA (FR)
FR
2 records
Casanix
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Exotine
TerminatedLactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
FR
3 records
Freelou
ActiveLactuca sativa L. · Lettuce
Monsanto Vegetable IP Management B.V.
FR
3 records
Petrian
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
4 records
Hannes
Application submittedLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
3 records
Lysian
TerminatedLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
4 records
Valea
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Rivale
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Adalyn
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Distinguo
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Acropole
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
4 records
Belicos
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Dicata
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Telepati
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado SAS (FR)
FR
3 records