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Resistance of the Wheat Cultivar 'Renan' to Septoria Leaf Blotch Explained by a Combination of Strain Specific and Strain Non-Specific QTL Mapped on an Ultra-Dense Genetic Map.
Genes (Basel). 2021 12 31; 13(1)G

Abstract

Quantitative resistance is considered more durable than qualitative resistance as it does not involve major resistance genes that can be easily overcome by pathogen populations, but rather a combination of genes with a lower individual effect. This durability means that quantitative resistance could be an interesting tool for breeding crops that would not systematically require phytosanitary products. Quantitative resistance has yet to reveal all of its intricacies. Here, we delve into the case of the wheat/Septoria tritici blotch (STB) pathosystem. Using a population resulting from a cross between French cultivar Renan, generally resistant to STB, and Chinese Spring, a cultivar susceptible to the disease, we built an ultra-dense genetic map that carries 148,820 single nucleotide polymorphism (SNP) markers. Phenotyping the interaction was done with two different Zymoseptoria tritici strains with contrasted pathogenicities on Renan. A linkage analysis led to the detection of three quantitative trait loci (QTL) related to resistance in Renan. These QTL, on chromosomes 7B, 1D, and 5D, present with an interesting diversity as that on 7B was detected with both fungal strains, while those on 1D and 5D were strain-specific. The resistance on 7B was located in the region of Stb8 and the resistance on 1D colocalized with Stb19. However, the resistance on 5D was new, so further designated Stb20q. Several wall-associated kinases (WAK), nucleotide-binding and leucine-rich repeats (NB-LRR) type, and kinase domain carrying genes were present in the QTL regions, and some of them were expressed during the infection. These results advocate for a role of Stb genes in quantitative resistance and for resistance in the wheat/STB pathosystem being as a whole quantitative and polygenic.

Authors+Show Affiliations

Université Paris Saclay, INRAE, UR BIOGER, 78850 Thiverval-Grignon, France. ARVALIS Institut du Végétal, 91720 Boigneville, France.Université Paris Saclay, INRAE, UR BIOGER, 78850 Thiverval-Grignon, France.Université Paris Saclay, INRAE, UR BIOGER, 78850 Thiverval-Grignon, France.Université Paris Saclay, INRAE, UR BIOGER, 78850 Thiverval-Grignon, France.Université Paris Saclay, INRAE, UR BIOGER, 78850 Thiverval-Grignon, France.Université Clermont-Auvergne, INRAE, UMR GDEC, 63000 Clermont-Ferrand, France.ARVALIS Institut du Végétal, 91720 Boigneville, France.Université Paris Saclay, INRAE, UR BIOGER, 78850 Thiverval-Grignon, France.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

35052440

Citation

Langlands-Perry, Camilla, et al. "Resistance of the Wheat Cultivar 'Renan' to Septoria Leaf Blotch Explained By a Combination of Strain Specific and Strain Non-Specific QTL Mapped On an Ultra-Dense Genetic Map." Genes, vol. 13, no. 1, 2021.
Langlands-Perry C, Cuenin M, Bergez C, et al. Resistance of the Wheat Cultivar 'Renan' to Septoria Leaf Blotch Explained by a Combination of Strain Specific and Strain Non-Specific QTL Mapped on an Ultra-Dense Genetic Map. Genes (Basel). 2021;13(1).
Langlands-Perry, C., Cuenin, M., Bergez, C., Krima, S. B., Gélisse, S., Sourdille, P., Valade, R., & Marcel, T. C. (2021). Resistance of the Wheat Cultivar 'Renan' to Septoria Leaf Blotch Explained by a Combination of Strain Specific and Strain Non-Specific QTL Mapped on an Ultra-Dense Genetic Map. Genes, 13(1). https://doi.org/10.3390/genes13010100
Langlands-Perry C, et al. Resistance of the Wheat Cultivar 'Renan' to Septoria Leaf Blotch Explained By a Combination of Strain Specific and Strain Non-Specific QTL Mapped On an Ultra-Dense Genetic Map. Genes (Basel). 2021 12 31;13(1) PubMed PMID: 35052440.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Resistance of the Wheat Cultivar 'Renan' to Septoria Leaf Blotch Explained by a Combination of Strain Specific and Strain Non-Specific QTL Mapped on an Ultra-Dense Genetic Map. AU - Langlands-Perry,Camilla, AU - Cuenin,Murielle, AU - Bergez,Christophe, AU - Krima,Safa Ben, AU - Gélisse,Sandrine, AU - Sourdille,Pierre, AU - Valade,Romain, AU - Marcel,Thierry C, Y1 - 2021/12/31/ PY - 2021/12/03/received PY - 2021/12/22/revised PY - 2021/12/22/accepted PY - 2022/1/21/entrez PY - 2022/1/22/pubmed PY - 2022/2/22/medline KW - Septoria tritici blotch KW - Stb20q KW - bread wheat KW - quantitative trait loci KW - resistance durability KW - strain specificity JF - Genes JO - Genes (Basel) VL - 13 IS - 1 N2 - Quantitative resistance is considered more durable than qualitative resistance as it does not involve major resistance genes that can be easily overcome by pathogen populations, but rather a combination of genes with a lower individual effect. This durability means that quantitative resistance could be an interesting tool for breeding crops that would not systematically require phytosanitary products. Quantitative resistance has yet to reveal all of its intricacies. Here, we delve into the case of the wheat/Septoria tritici blotch (STB) pathosystem. Using a population resulting from a cross between French cultivar Renan, generally resistant to STB, and Chinese Spring, a cultivar susceptible to the disease, we built an ultra-dense genetic map that carries 148,820 single nucleotide polymorphism (SNP) markers. Phenotyping the interaction was done with two different Zymoseptoria tritici strains with contrasted pathogenicities on Renan. A linkage analysis led to the detection of three quantitative trait loci (QTL) related to resistance in Renan. These QTL, on chromosomes 7B, 1D, and 5D, present with an interesting diversity as that on 7B was detected with both fungal strains, while those on 1D and 5D were strain-specific. The resistance on 7B was located in the region of Stb8 and the resistance on 1D colocalized with Stb19. However, the resistance on 5D was new, so further designated Stb20q. Several wall-associated kinases (WAK), nucleotide-binding and leucine-rich repeats (NB-LRR) type, and kinase domain carrying genes were present in the QTL regions, and some of them were expressed during the infection. These results advocate for a role of Stb genes in quantitative resistance and for resistance in the wheat/STB pathosystem being as a whole quantitative and polygenic. SN - 2073-4425 UR - https://www.unboundmedicine.com/medline/citation/35052440/Resistance_of_the_Wheat_Cultivar_'Renan'_to_Septoria_Leaf_Blotch_Explained_by_a_Combination_of_Strain_Specific_and_Strain_Non_Specific_QTL_Mapped_on_an_Ultra_Dense_Genetic_Map_ L2 - https://www.mdpi.com/resolver?pii=genes13010100 DB - PRIME DP - Unbound Medicine ER -