Latoya
ActiveLactuca 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.
Flamingo
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
4 records
Salvador
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Felicie
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Golem
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Kountry
TerminatedLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Kildary
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Parinice
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
3 records
Bridenice
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Alpera
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records
Ruboise
ActiveLactuca sativa L. · Lettuce
Gautier Semences SAS (FR)
FR
2 records
Myamar
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
FR
3 records
Vanguard 75
ActiveLactuca sativa L. · Lettuce
DR. E.J. RYDER
Laurenzio
TerminatedLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
5 records
Tyros
ActiveLactuca sativa L. · Lettuce
Syngenta Seeds B.V.
NL
4 records
Konzugo
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
4 records
Qualif
TerminatedLactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
FR
3 records
Aquarita
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
3 records
Lutine
TerminatedLactuca sativa L. · Lettuce
Tezier SA (FR)
FR
3 records
Panisse
ActiveLactuca sativa L. · Lettuce
Graines Gautier SA (FR)
FR
3 records
Carthagian
ActiveLactuca sativa L. · Lettuce
Syngenta Crop Protection AG
NL
4 records
Tuttifree
TerminatedLactuca sativa L. · Lettuce
Seminis Vegetable Seeds
FR
3 records
Agribel
ActiveLactuca sativa L. · Lettuce
Bejo Zaden B.V.
NL
2 records
Crispenza
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
4 records