Ezuma
TerminatedLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
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.
Ikarina
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
4 records
Agrela
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Albanice
TerminatedLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Mosslanding
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
3 records
Babila
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Trocadéro
ActiveLactuca sativa L. · Lettuce
Domaine Public (FR)
FR
2 records
Kaskaro
TerminatedLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Parabole
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
4 records
Sycamore
WithdrawnLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
3 records
Quice
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado SAS (FR)
FR
3 records
Or Anton
ActiveLactuca sativa L. · Lettuce
ORTORICERCA SRL
IT
2 records
Moonice
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
4 records
Xoana
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Quione
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado SAS (FR)
FR
3 records
Morfos
ActiveLactuca sativa L. · Lettuce
Syngenta Seeds B.V.
NL
4 records
Multiblond 181
ActiveLactuca sativa L. · Lettuce
Nunhems B.V.
NL
4 records
Antonela
TerminatedLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Trocadéro à graine noire
ActiveLactuca sativa L. · Lettuce
Domaine Public (FR)
FR
2 records
Saralyn
WithdrawnLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
3 records
Napelo
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Joliac
ActiveLactuca sativa L. · Lettuce
Seminis Vegetable Seeds
NL
3 records
Elixir
TerminatedLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Basidra
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records