Skip to Main content Skip to Navigation
Journal articles

Genetic analysis of resistance to bacterial leaf spot in the heirloom lettuce cultivar Reine des Glaces

Abstract : Bacterial leaf spot (BLS) is a disease that affects lettuce (Lactuca sativa L.) worldwide. The disease is caused by the bacterium Xanthomonas campestris pathovar vitians (Xcv), which exclusively infects lettuce and is particularly devastating in warm humid climates. Reine des Glaces (RG), an old Batavia-type cultivar, exhibited an uninvestigated partial resistance to Xcv. Quantitative trait loci (QTLs) were analyzed using two recombinant inbred line (RIL) populations derived from RG × Eruption and RG × Delsay using three isolates collected in California and Canada, each representing a different race, and an isolate collected in France. A major QTL was identified in linkage group 2 in both populations; additional, minor QTLs were also detected in other linkage groups. The major QTL collocates with the Xanthomonas resistance 1 (Xar1) and Xanthomonas campestris vitians resistance (Xcvr) genes that had previously been identified using RIL populations derived from Salinas 88 × La Brillante and PI 358001-1 × Tall Guzmaine. RG provides another resistance resource for combating BLS using data provided by this study for marker-assisted selection.
Complete list of metadata

https://hal.inrae.fr/hal-02619108
Contributor : Migration Prodinra <>
Submitted on : Monday, May 25, 2020 - 4:16:31 PM
Last modification on : Thursday, December 3, 2020 - 4:46:03 PM

Identifiers

Collections

Citation

Germán V. Sandoya, Brigitte Maisonneuve, Maria Jose Truco, Carolee T. Bull, Ivan Simko, et al.. Genetic analysis of resistance to bacterial leaf spot in the heirloom lettuce cultivar Reine des Glaces. Molecular Breeding, Springer Verlag, 2019, 39 (12), ⟨10.1007/s11032-019-1072-6⟩. ⟨hal-02619108⟩

Share

Metrics

Record views

69