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INRA
24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

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The Lettuce Genetic Resource Collection

The genus Lactuca, of the Asteraceae family includes 17 species in Europe (2n=18 or 16), the cultivated lettuce (L. sativa) is native to the Mediterranean. The vast majority of species is self-pollinating. Lettuce, a first leaf vegetable, which includes various types of butter lettuce, iceberg lettuce, cut with types of oak-leaved and Lollo, romaine, and stem lettuce.
ColLaitue
serriolaLS218-exposé

Espèce apparentée Lactuca serriola

The Lactuca collection was originally formed at INRA of Versailles with 150 varieties of L.sativa introduced before 1984, then 313 varieties between 1984 and 1992; furthermore, INRA has conducted surveys of wild lettuce in France since 1977 and almost 50% of the current collection of wild related species corresponds to the accessions collected in the 1980s. This collection has regularly been enriched by more recent collections in France, genotypes coming from foreign CRB’s or other laboratories, to answer specifically to research programs. Seeing as the varieties are fixed varieties, the collection includes not only old but also modern varieties acquired since 1993. Currently, the collection includes more than 700 L.sativa genotypes and 238 genotypes of wild related species, of which 86% belong to species compatible with the cultivated lettuce, L. sativa.

 ⇒ You can consult a part of the Lettuce Collection on the GnpIS site and on the Dutch International Lactuca Database.

CollectionLaitue

Culture de diverses variétés de Laitue pour phénotypage

Research programs on lettuce focus on the resistance of pests, mainly researching new resistances. For genetic determinism studies and/or molecular markers, genetic resources, populations were created at INRA, often within a partnership framework (RIL populations, isogenic lines in particular).

Learning resources

You can freely use these learning and communication tools by mentioning the source (INRA CRB-Leg). Send us feedback on their use.