Chromosome-level genome assemblies for the latent pine pathogen, Diplodia sapinea, reveal two accessory chromosomes with distinct genomic features and evolutionary dynamics.

ABSTRACT: Diplodia sapinea (Dothideomycetes) is a latent fungal pathogen with a global distribution that predominantly infects Pinus species. The impact of the fungus is increasing due to climate-driven range expansion and thus wide-scale disease outbreaks are occurring. With the aim of developing high-quality genome resources, we generated chromosome-level genome assemblies for 3 D. sapinea isolates and low-coverage Illumina genome data for 6 additional isolates. By comparing these genome assemblies, we identified 14 core chromosomes and 2 accessory chromosomes (ACs) in the pathogen. These 2 ACs encode 80 and 147 proteins, respectively, while 11,374 to 11,601 genes were identified in the core chromosomes. Both ACs had lower gene density and higher proportions of transposable elements compared to th

SUBMITTER: Shaw PL 

PROVIDER: S-EPMC12693491 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature