Comparative transcriptomics and eQTL mapping of response to Melampsora americana in selected Salix purpurea F₂ progeny.

ABSTRACT:

Background

Melampsora spp. rusts are the greatest pathogen threat to shrub willow (Salix spp.) bioenergy crops. Genetic resistance is key to limit the effects of these foliar diseases on host response and biomass yield, however, the genetic basis of host resistance has not been characterized. The addition of new genomic resources for Salix provides greater power to investigate the interaction between S. purpurea and M. americana, species commonly found in the Northeast US. Here, we utilize 3' RNA-seq to investigate host-pathogen interactions following controlled inoculations of M. americana on resistant and susceptible F₂ S. purpurea genotypes identified in a recent QTL mapping study. Differential gene expression, network analysis, and eQTL mapping were used to contrast

SUBMITTER: Wilkerson DG 

PROVIDER: S-EPMC8783449 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature