Genetic control and host range of avirulence toward Brassica napus cultivars quinta and jet neuf in Leptosphaeria maculans

• Published in: Phytopathology Vol. 91; no. 1; pp. 70 - 76
• Main Authors: BALESDENT, M. H, ATTARD, A, ANSAN-MELAYAH, D, DELOURME, R, RENARD, M, ROUXEL, T
• Format: Journal Article
• Language: English
• Published: St. Paul, MN American Phytopathological Society 2001
• Subjects: Agronomy. Soil science and plant productions; Biological and medical sciences; Fundamental and applied biological sciences. Psychology; Genetics and breeding of economic plants; Life Sciences; Pest resistance; Phytopathology and phytopharmacy; Plant pathogens; Varietal selection. Specialized plant breeding, plant breeding aims; Vegetal Biology; Plant pathogen; Gene interaction; Variety trial; Oil plant(vegetal); Fungus resistance; Fungi; Leptosphaeria maculans; Cruciferae; Dicotyledones; Angiospermae; Brassica napus; Host range; Ascomycetes; Spermatophyta; Avirulence; Thallophyta; Cultivar; POUVOIR PATHOGENE

ABSTRACT Leptosphaeria maculans causes blackleg of oilseed rape. Gene-for-gene interactions between race PG3 and Brassica napus cv. Quinta were related to interaction between the fungal avirulence (Avr) gene AvrLm1 and the corresponding resistance gene Rlm1. AvrLm1 isolates were aviru-lent on cvs. D...