Transcription profiling of Rhopalosiphum padi interaction with partially resistant or susceptible barley lines

ABSTRACT: The bird cherry-oat aphid (Rhopalosiphum padi L.) (Homoptera: Aphididae) is an important pest on cereals causing plant growth reduction but no specific leaf symptoms. Breeding of barley (Hordeum vulgare L.) for R. padi resistance shows that there are several resistance genes involved, reducing aphid growth. In an attempt to identify candidate sequences for resistance-related genes, we performed a microarray analysis of gene expression after two days of aphid infestation in two susceptible barley lines and two genotypes with partial resistance. One of the four lines is a descendant of two of the other genotypes. The analysis revealed large differences in gene induction between the four lines, indicating substantial variation in response even between closely related genotypes. Genes induced

ORGANISM(S): Hordeum vulgare subsp. spontaneum

SUBMITTER: Gabriele Delp 

PROVIDER: E-GEOD-12584 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress