A Quantitative Trait Locus with a Major Effect on Root-Lesion Nematode Resistance in Barley
Article
Article Title | A Quantitative Trait Locus with a Major Effect on Root-Lesion Nematode Resistance in Barley |
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ERA Journal ID | 213962 |
Article Category | Article |
Authors | Mather, Diane, Vassos, Elysia, Sheedy, Jason, Guo, Wenbin and McKay, Alan |
Editors | Zhou, G. |
Journal Title | Plants |
Journal Citation | 13 (12) |
Article Number | 1663 |
Number of Pages | 18 |
Year | 2024 |
Publisher | MDPI AG |
Place of Publication | Switzerland |
ISSN | 2223-7747 |
Digital Object Identifier (DOI) | https://doi.org/10.3390/plants13121663 |
Web Address (URL) | https://www.mdpi.com/2223-7747/13/12/1663 |
Abstract | Although the root-lesion nematode Pratylenchus thornei is known to affect barley (Hordeum vulgare L.), there have been no reports on the genetic control of P. thornei resistance in barley. In this research, P. thornei resistance was assessed for a panel of 46 barley mapping parents and for two mapping populations (Arapiles/Franklin and Denar/Baudin). With both populations, a highly significant quantitative trait locus (QTL) was mapped at the same position on the long arm of chromosome 7H. Single-nucleotide polymorphisms (SNPs) in this region were anchored to an RGT Planet pan-genome assembly and assayed on the mapping parents and other barley varieties. The results indicate that Arapiles, Denar, RGT Planet and several other varieties likely have the same resistance gene on chromosome 7H. Marker assays reported here could be used to select for P. thornei resistance in barley breeding. Analysis of existing barley pan-genomic and pan-transcriptomic data provided a list of candidate genes along with information on the expression and differential expression of some of those genes in barley root tissue. Further research is required to identify a specific barley gene that affects root-lesion nematode resistance. |
Keywords | barley; root-lesion nematode; resistance; quantitative trait locus; chromosome 7H |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 300406. Crop and pasture improvement (incl. selection and breeding) |
Byline Affiliations | University of Adelaide |
Centre for Crop Health | |
James Hutton Institute, United Kingdom | |
South Australian Research and Development Institute, Australia |
https://research.usq.edu.au/item/z7w94/a-quantitative-trait-locus-with-a-major-effect-on-root-lesion-nematode-resistance-in-barley
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Mather et al 2024 A quantitative trait locus with a major effect on root-lesion nematode resistance in barley.pdf | ||
License: CC BY 4.0 | ||
File access level: Anyone |
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