Toward combining qualitative race-specific and quantitative race-nonspecific disease resistance by genomic selection.

ABSTRACT:

Key message

A novel genomic selection strategy offers the unique opportunity to develop qualitative race-specific resistant varieties that possess high levels of the more durable quantitative race-nonspecific resistance in their genetic background. Race-specific qualitative resistance genes (R-genes) are conferring complete resistance in many pathosystems, but are frequently overcome by new virulent pathogen races. Once the deployed R-genes are overcome, a wide variation of quantitative disease resistance (QDR) can be observed in a set of previously race-specific, i.e., completely resistant genotypes-a phenomenon known as "vertifolia effect." This race-nonspecific QDR is considered to be more durable in the long term, but provides merely a partial protection against pathogens. This

SUBMITTER: Michel S 

PROVIDER: S-EPMC10036288 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature