Equila
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
5 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.
Admir
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer
NL
6 records
Candyka
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
6 records
Melvine
ActiveLactuca sativa L. · Lettuce
HM.CLAUSE
FR
4 records
Cristel
TerminatedLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
SK
4 records
Geraldine
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
ES
NL
7 records
Sotalis
ActiveLactuca sativa L. · Lettuce
Bejo Zaden B.V.
NL
4 records
Ruatan
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Sylvesta
ActiveLactuca sativa L. · Lettuce
NUNHEMS ZADEN B.V.
NL
5 records
Vista
ActiveLactuca sativa L. · Lettuce
Vilmorin SA (FR)
FR
4 records
Spirole
ActiveLactuca sativa L. · Lettuce
Syngenta Seeds B.V.
NL
5 records
Forlina
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
4 records
Graffiti
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
FR
6 records
Ribaï
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
4 records
Abago
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Dracos
TerminatedLactuca sativa L. · Lettuce
Syngenta Seeds B.V.
NL
5 records
Mignone
ActiveLactuca sativa L. · Lettuce
Vilmorin, F
FR
4 records
Hetea
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Quito
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
FR
4 records
Vicinity
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Folko
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
6 records
Cornouaï
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
4 records
Alatriste
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer
NL
6 records
Frillasti
ActiveLactuca sativa L. · Lettuce
Monsanto Vegetable IP Management B.V.
FR
4 records