Lucietta
ActiveLactuca sativa L. · Lettuce
LA SEMIORTO SEMENTI SRL
IT
1 record
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.
Tortola
WithdrawnLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
JAVALAMBRE
ActiveLactuca sativa L. · Lettuce
RAMIRO ARNEDO, S.A.
ES
1 record
80 70 RZ
WithdrawnLactuca sativa L. · Lettuce
RIJK ZWAAN Z.Z. B.V.
ES
1 record
AMADEUS RZ (41-46 RZ)
WithdrawnLactuca sativa L. · Lettuce
RIJK ZWAAN Z.Z. B.V.
ES
1 record
83 06 RZ
WithdrawnLactuca sativa L. · Lettuce
RIJK ZWAAN Z.Z. B.V.
ES
1 record
Multired 7
TerminatedLactuca sativa L. · Lettuce
Nunhems B.V.
NL
2 records
Imperos
Application submittedLactuca sativa L. · Lettuce
Levantia Seed Srl (IT)
BG
1 record
Platine
TerminatedLactuca sativa L. · Lettuce
Tezier SA (FR)
FR
2 records
KRISHNA
TerminatedLactuca sativa L. · Lettuce
HAZERA (1939)
ES
1 record
AMANDINE RZ (85-90 RZ)
WithdrawnLactuca sativa L. · Lettuce
RIJK ZWAAN Z.Z. B.V.
ES
1 record
Ardenta
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
1 record
Blonde de Laeken
TerminatedLactuca sativa L. · Lettuce
Domaine Public (FR)
FR
1 record
Regina d'estate 2
TerminatedLactuca sativa L. · Lettuce
MINISTERO DELLE POLITICHE AGRICOLE E FORESTALI - DIREZIONE GENERALE DELLE POLITICHE AGRICOLE ED AGROINDUSTRIALI NAZIONALI
IT
1 record
85 76 RZ
WithdrawnLactuca sativa L. · Lettuce
RIJK ZWAAN Z.Z. B.V.
ES
1 record
Segura
Application submittedLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
1 record
Jigen
Application submittedLactuca sativa L. · Lettuce
Levantia Seed Srl (IT)
BG
1 record
Godric
Application submittedLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
1 record
Jakady
Application submittedLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
1 record
Anazeria
Application submittedLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
2 records
Fabietto RZ
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan France SARL (FR)
HR
1 record
Bourguignonne
ActiveLactuca sativa L. · Lettuce
Domaine Public (FR)
FR
1 record
Lisamba
Application submittedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
2 records
Raffaella
ActiveLactuca sativa L. · Lettuce
Panora s.p.a.
NL
1 record