Rye stem rust is a reservoir of diversity and virulence for wheat stem rust
Thomas W. Ingram, Molly L. Veregge, Pablo Olivera Firpo, Yue Jin, Alina R. Akhunova, Eduard Akhunov, Matthew N. Rouse, Matthew Moscou
The paper analyzes 385 Pg genomes to show Kazakhstan hosts a diverse sexual clade with many HD haplotypes, and Pgs contributes virulent alleles to wheat rust pathogens.
bioRxiv · Oct 14, 2026 · PreprintPlant Biology