Genetic Architecture Underlying Response to the Fungal Pathogen <i>Dothistroma septosporum</i> in Lodgepole Pine, Jack Pine, and Their Hybrids.

ABSTRACT: In recent decades, Dothistroma needle blight (DNB), a pine tree disease caused by the fungal pathogen Dothistroma septosporum, has severely damaged lodgepole pine (Pinus contorta Dougl. ex. Loud.) in British Columbia, Canada, and raised health concerns for jack pine (Pinus banksiana Lamb.). The pathogen has already shown signs of host shift eastward to the hybrid populations between lodgepole pine and jack pine (Pinus contorta × P. banksiana), and possibly into pure jack pine. However, we have little knowledge about mechanisms of resistance to D. septosporum, especially the underlying genetic basis of variation in pines. In this study, we conducted controlled inoculations to induce infection by D. septosporum and performed a ge

SUBMITTER: Lu M 

PROVIDER: S-EPMC11802335 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature