Data from: Global crop introduction drives host jumps, turning native Pathogens into emerging diseases

This Dryad submission contains the primary datasets, metadata, and
analytical outputs underlying the conclusions of Crouch et al. 2026
(PNAS). The dataset includes multilocus DNA sequence alignments (ITS, LSU,
and additional loci as analyzed), specimen-level metadata for fresh and
herbarium-derived samples (including host, geographic origin, collection
date, and voucher information), geographical figures, and single loci
phylogenetic tree. Population genetics data has been submitted to T-BAS
(https://guide-tbas.cifr.ncsu.edu/tbas) and all sequence files have been
submitted to GenBank (https://www.ncbi.nlm.nih.gov/genbank/). 
Data values consist of nucleotide sequence data (FASTA and alignment
formats), geographic locality descriptors, and host association data.
Herbarium-derived sequence data include century-old specimens. All
specimen identifiers are cross-referenced with voucher information to
facilitate reproducibility and reuse. These data support reconstruction of
geographically structured, host-associated lineages of powdery mildews
infecting strawberries and raspberries and enable reanalysis using
alternative phylogenetic, population genetic, or comparative evolutionary
frameworks. The dataset has high reuse potential for studies in fungal
systematics, plant pathology, herbarium genomics, host specialization, and
molecular dating. Voucher specimens are deposited in recognized herbaria
and are cited accordingly.