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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.

Sources8

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.

Kingita

Active

Lactuca sativa L. · Lettuce

Syngenta Seeds B.V.

NL
10 records

Tranvia

Active

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
6 records

Yecla

Active

Lactuca sativa L. · Lettuce

Enza Zaden, NL

NL
6 records

Funfix

Active

Lactuca sativa L. · Lettuce

Syngenta Crop Protection AG

NL
6 records

Extratos

Active

Lactuca sativa L. · Lettuce

Syngenta Seeds B.V.

NL
6 records

Champollion

Active

Lactuca sativa L. · Lettuce

Rijk Zwaan, NL

FR
6 records

Tirole

Active

Lactuca sativa L. · Lettuce

Syngenta Seeds B.V.

NL
9 records

Ofelia

Active

Lactuca sativa L. · Lettuce

Vilmorin-Mikado S.A.S.

FR
5 records

Bloomquist

Active

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
7 records

Humboldt

Active

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
6 records

Lianabel

Active

Lactuca sativa L. · Lettuce

Bejo Zaden, NL

NL
9 records

Minestrone

Active

Lactuca sativa L. · Lettuce

Vilmorin-Mikado S.A.S.

FR
5 records

Clearwater

Active

Lactuca sativa L. · Lettuce

Enza Zaden Beheer B.V.

NL
7 records

Albara

Active

Lactuca sativa L. · Lettuce

Enza Zaden Beheer B.V.

NL
7 records

Lilybel

Active

Lactuca sativa L. · Lettuce

BEJO ZADEN

NL
10 records

Yacht

Active

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
5 records

Alaine

Active

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
7 records

Partition

Active

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)

FR
5 records

Baeza

Active

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
6 records

Basilio

Active

Lactuca sativa L. · Lettuce

Rijk Zwaan, NL

NL
7 records

Ilona

Active

Lactuca sativa L. · Lettuce

Enza Zaden Beheer B.V.

FR NL
8 records

Scamander

Active

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
6 records

Lumirex

Active

Lactuca sativa L. · Lettuce

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
7 records

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