Towards better understanding of genetics in Leptosphaeria-Brassica interactions via international collaborations to standardize the nomenclature of blackleg resistance genes

The Challenge

The international blackleg research community currently does not have universal protocol in the effort to locate new blackleg resistant genes, leading to the finding of the same gene multiple times with many different given names.

The Project

Coordinate efforts with the international blackleg research community to expand the current set of host differentials for new resistant genes, and create a common database of genetics and genomics data and protocols.

The Results

Through collaboration with INRA scientist in France, these researchers introduced gene naming convention that incorporates locus information alongside phenotypic interactions, departing from previous naming practices solely based on phenotypic characteristics. Through collaboration between Dr. Borhan, Dr. Fernando, and Dr. Peng’s labs, they defined the Avr gene profile of close to 200 Lm isolates using both phenotyping and molecular markers. The labs have also generated a genome sequence synteny viewer for 58 Lm isolates. Another set of valuable data contributed by this study is the profile of R genes in  a collection of B. napus accessions available through gene-banks (e.g. PGRC) and canola breeding companies.

Grower Benefits

Universal protocol and collaboration of the international blackleg research community will give growers comprehensive tools in blackleg disease management.