ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2017
Loci on chromosomes 1A and 2A affect resistance to tan (yellow) spot in wheat populations not segregating for tsn1.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 16 citations in OpenAlex.
- Anther Culture Protocols for Barley and Wheat.Methods in molecular biology (Clifton, N.J.) · 2024Article
- An international wheat diversity panel reveals novel sources of genetic resistance to tan spot in Australia.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- Assessment of Indian wheat germplasm for Septoria nodorum blotch and tan spot reveals new QTLs conferring resistance along with recessive alleles ofFrontiers in plant science · 2023Article
- Genomic Analysis and Delineation of the Tan Spot Susceptibility LocusFrontiers in plant science · 2022Article
- Variability in an effector gene promoter of a necrotrophic fungal pathogen dictates epistasis and effector-triggered susceptibility in wheat.PLoS pathogens · 2022Article
- Quantitative Trait Loci and Candidate Genes Associated with Cold-Acclimation andPlants (Basel, Switzerland) · 2021Article
- Genetic characterization of adult-plant resistance to tan spot (syn, yellow spot) in wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2021Article
- GWAS analysis reveals distinct pathogenicity profiles of Australian Parastagonospora nodorum isolates and identification of marker-trait-associations to septoria nodorum blotch.Scientific reports · 2021Article
- Meta-QTL analysis of tan spot resistance in wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020Article
- The Effect of Caffeine and Trifluralin on Chromosome Doubling in Wheat Anther Culture.Plants (Basel, Switzerland) · 2020Article
- Discovering new alleles for yellow spot resistance in the Vavilov wheat collection.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2019Article
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Authors and funding
12 authors at 5 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
key messageQTL for tan spot resistance were mapped on wheat chromosomes 1A and 2A. Lines were developed with resistance alleles at these loci and at the tsn1 locus on chromosome 5B. These lines expressed significantly higher resistance than the parent with tsn1 only. Tan spot (syn. yellow spot and yellow leaf spot) caused by Pyrenophora tritici-repentis is an important foliar disease of wheat in Australia. Few resistance genes have been mapped in Australian germplasm and only one, known as tsn1 located on chromosome 5B, is known in Australian breeding programs. This gene confers insensitivity to the fungal effector ToxA. The main aim of this study was to map novel resistance loci in two populations: Calingiri/Wyalkatchem, which is fixed for the ToxA-insensitivity allele tsn1, and IGW2574/Annuello, which is fixed for the ToxA-sensitivity allele Tsn1. A second aim was to combine new loci with tsn1 to develop lines with improved resistance. Tan spot severity was evaluated at various growth stages and in multiple environments. Symptom severity traits exhibited quantitative variation. The most significant quantitative trait loci (QTL) were detected on chromosomes 2A and 1A. The QTL on 2A explained up to 29.2% of the genotypic variation in the Calingiri/Wyalkatchem population with the resistance allele contributed by Wyalkatchem. The QTL on 1A explained up to 28.1% of the genotypic variation in the IGW2574/Annuello population with the resistance allele contributed by Annuello. The resistance alleles at both QTL were successfully combined with tsn1 to develop lines that express significantly better resistance at both seedling and adult plant stages than Calingiri which has tsn1 only.
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