Ravenna
Application submittedLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
3 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.
Funride
TerminatedLactuca sativa L. · Lettuce
Syngenta Seeds BV (NL)
FR
3 records
Ainoha
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Styria
TerminatedLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
6 records
Harro
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Danteria
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Guetary
TerminatedLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
3 records
Lenir
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Venegia
ActiveLactuca sativa L. · Lettuce
Petoseed Co INC (US)
FR
2 records
Choupac
ActiveLactuca sativa L. · Lettuce
Monsanto Vegetable IP Management B.V.
FR
3 records
Hussarde
ActiveLactuca sativa L. · Lettuce
Graines Gautier SA (FR)
FR
3 records
Rodanice
TerminatedLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Xanbera
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Kinshasa
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
3 records
Animix
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Guapi
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Kuzco
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Primice
TerminatedLactuca sativa L. · Lettuce
Syngenta Seeds B.V.
NL
5 records
Ladynice
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Donador
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
3 records
Crispyano
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Veery
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Alkernia
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Chantilly
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records