Message. A QTL from rye chromosome 5R confers resistance to root-lesion nematode in triticale. Root-lesion nematode ( Pratylenchus neglectus , RLN) poses a significant threat to global wheat production. High levels of RLN resistance are rare in wheat. Triticale, an amphiploid generated by combining wheat and rye genomes that naturally carries rye-derived defense alleles, offers an untapped reservoir of nematode resistance. Her...

Spongospora subterranea f. sp. subterranea, a biotrophic soil-borne plasmodiophorid pathogen causes powdery scab of potato and vectors Potato mop-top virus (PMTV). Here, we present a genome of S. subterranea which will enhance our understanding of the pathogen’s genomic architecture. DNA was isolated from root galls from a single field-grown plant cv. Russet Burbank for Oxford Nanopore long-read sequencing and polished with Il...

Key message The tomato Ty-6 gene conferring resistance against begomoviruses has been cloned and shown to be a variant of DNA polymerase delta subunit 1. Abstract Ty-6 is a major resistance gene of tomato that provides resistance against monopartite and bipartite begomoviruses. The locus was previously mapped on chromosome 10, and in this study, we fine-mapped Ty-6 to a region of 47 kb, including four annotated candidate genes...