Evidence map›Paper›PMID 41489649›Full record

ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2026

Genetic analysis of a quantitative trait locus associated with resistance to the root-lesion nematode Pratylenchus neglectus in triticale.

Gurminder Singh, Krishna Acharya, Bonventure Mumia, Siddant Ranabhat, Ekta Ojha, Jatinder Singh, Upinder Gill, Sean Walkowiak, Harmeet Singh Chawla, Xuehui Li and 3 more

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Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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4 · The record

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5 · Who and what money

Authors and funding

13 authors.

Gurminder SinghDepartment of Plant Pathology, North Dakota State University, Fargo, ND, 58102, USA.
Krishna AcharyaDepartment of Plant Sciences, North Dakota State University, Fargo, ND, 58102, USA.
Bonventure MumiaDepartment of Plant Pathology, North Dakota State University, Fargo, ND, 58102, USA.
Siddant RanabhatDepartment of Plant Pathology, North Dakota State University, Fargo, ND, 58102, USA.
Ekta OjhaDepartment of Plant Pathology, North Dakota State University, Fargo, ND, 58102, USA.
Jatinder SinghDepartment of Plant Pathology, North Dakota State University, Fargo, ND, 58102, USA.
Upinder GillDepartment of Plant Pathology, North Dakota State University, Fargo, ND, 58102, USA.
Sean WalkowiakGrain Research Laboratory, Canadian Grain Commission, Winnipeg, MB, R3C 3G8, Canada.
Harmeet Singh ChawlaDepartment of Plant Science, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada.
Xuehui LiDepartment of Plant Sciences, North Dakota State University, Fargo, ND, 58102, USA.
Justin FarisUSDA-Agricultural Research Service, Cereal Crops Research Improvement Unit, Edward T. Schafer Agricultural Research Center, Fargo, ND, 58102, USA.
Zhaohui LiuDepartment of Plant Pathology, North Dakota State University, Fargo, ND, 58102, USA.
Guiping YanDepartment of Plant Pathology, North Dakota State University, Fargo, ND, 58102, USA. guiping.yan@ndsu.edu.ORCID http://orcid.org/0000-0001-6181-0558

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

messageA 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. Here, we evaluated the response to RLN in 137 recombinant inbred lines (RILs) derived from a cross between two triticale cultivars: Siskiyou (susceptible) and Villax St. Jose (resistant). Genotyping-by-sequencing identified 1054 high-quality single-nucleotide polymorphism (SNP) markers, which, along with seven simple sequence repeat (SSR) markers, were assembled into 21 linkage groups covering the triticale genome. A single quantitative trait locus (QTL) on the rye-derived chromosome 5R was identified that explained approximately 20% of the phenotypic variance across experiments. A high-throughput Kompetitive allele-specific PCR (KASP) assay based on the most significant SNP marker was developed, providing a rapid genotyping platform for selecting the resistance allele and reducing reliance on labor-intensive phenotyping for P. neglectus resistance in triticale. This study reports the first mapped RLN-resistance QTL in triticale, laying the fundamental foundation for introgressing the 5R resistance allele into wheat via marker-assisted selection combined with chromosome engineering, thereby broadening the genetic basis for nematode resistance in cereal crops.

Indexed as

Disease ResistancePlant DiseasesQuantitative Trait LociTriticaleTylenchoideaAnimalsChromosome MappingGenetic LinkageGenetic MarkersGenotypeMicrosatellite RepeatsPhenotypePlant RootsPolymorphism, Single NucleotideGenetic Markers

Identifiers

PMID41489649
PMCPMC12769958

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.