Genotype-by-genotype interactions reveal transcription patterns underlying resistance responses in Norway spruce to Heterobasidion annosum s.s.

ABSTRACT: The expression of the genetic components involved in quantitative disease resistance (QDR) are often not well understood and analyses of genotype-by-genotype interactions can shed light on how the resistance and the activation of resistance strategies vary across interactions. To deepen the knowledge on QDR and the molecular interactions in the Norway spruce (Picea abies)- Heterobasidion annosum s.l.. pathosystem we inoculated ten relatively resistant spruce clones with four H. annosum s.s. isolates with varying virulence and determined the disease phenotypes. Thereafter we analysed the transcriptome in nine interactions between three spruce clones and three isolates. We tested the hypotheses that (i) differences among host and pathogen genotypes affect the disease symptoms; (ii) host geno

SUBMITTER: Capador-Barreto HD 

PROVIDER: S-EPMC12502169 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature