Journal
PLANT BREEDING
Volume 123, Issue 6, Pages 505-511Publisher
WILEY
DOI: 10.1111/j.1439-0523.2004.01052.x
Keywords
Brassica juncea; Brassica napus; Leptosphaeria maculans; addition lines; B genome; blackleg resistance; introgression
Ask authors/readers for more resources
Screening of 212 spring type Brassica napus lines carrying B genome chromosome additions and introgressions from B. nigra, B. juncea and B. carinata resulted in the identification of one line segregating for resistance to Leptosphaeria maculans (anamorph Phoma lingam) at the seedling (cotyledon) stage. This line was derived from an interspecific hybrid containing the B genome of B. juncea. Trypan blue staining of cotyledons from resistant individuals demonstrated a hypersensitive response which is delayed in plants with intermediate lesion size. Genetic analysis supported the hypothesis of a monogenic recessive inheritance of resistance. The resistance gene, termed r(j)lm2, is effective in spring and winter type oilseed rape backgrounds against all tested virulent pathotypes, including two isolates which have been shown to overcome two dominant (race-specific) B genome-derived resistance genes in B. napus.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available