Evolution of the Rdr1 TNL-cluster in roses and other Rosaceous species.

ABSTRACT:

Background

The resistance of plants to pathogens relies on two lines of defense: a basal defense response and a pathogen-specific system, in which resistance (R) genes induce defense reactions after detection of pathogen-associated molecular patterns (PAMPS). In the specific system, a so-called arms race has developed in which the emergence of new races of a pathogen leads to the diversification of plant resistance genes to counteract the pathogens' effect. The mechanism of resistance gene diversification has been elucidated well for short-lived annual species, but data are mostly lacking for long-lived perennial and clonally propagated plants, such as roses. We analyzed the rose black spot resistance gene, Rdr1, in five members of the Rosaceae: Rosa multiflora, Rosa rugosa, Fragar

SUBMITTER: Terefe-Ayana D 

PROVIDER: S-EPMC3503547 | biostudies-literature | 2012 Aug

REPOSITORIES: biostudies-literature