Quantitative and qualitative plant-pathogen interactions call upon similar pathogenicity genes with a spectrum of effects.

Autor:	Langlands-Perry C; Université Paris-Saclay, INRAE, UR BIOGER, Palaiseau, France.; ARVALIS Institut du Végétal, Boigneville, France., Pitarch A; Université Paris-Saclay, INRAE, UR BIOGER, Palaiseau, France., Lapalu N; Université Paris-Saclay, INRAE, UR BIOGER, Palaiseau, France., Cuenin M; Université Paris-Saclay, INRAE, UR BIOGER, Palaiseau, France., Bergez C; Université Paris-Saclay, INRAE, UR BIOGER, Palaiseau, France., Noly A; Université Paris-Saclay, INRAE, UR BIOGER, Palaiseau, France., Amezrou R; Université Paris-Saclay, INRAE, UR BIOGER, Palaiseau, France., Gélisse S; Université Paris-Saclay, INRAE, UR BIOGER, Palaiseau, France., Barrachina C; MGX-Montpellier GenomiX, Univ. Montpellier, CNRS, INSERM, Montpellier, France., Parrinello H; MGX-Montpellier GenomiX, Univ. Montpellier, CNRS, INSERM, Montpellier, France., Suffert F; Université Paris-Saclay, INRAE, UR BIOGER, Palaiseau, France., Valade R; ARVALIS Institut du Végétal, Boigneville, France., Marcel TC; Université Paris-Saclay, INRAE, UR BIOGER, Palaiseau, France.
Jazyk:	angličtina
Zdroj:	Frontiers in plant science [Front Plant Sci] 2023 May 10; Vol. 14, pp. 1128546. Date of Electronic Publication: 2023 May 10 (Print Publication: 2023).
DOI:	10.3389/fpls.2023.1128546
Abstrakt:	Septoria leaf blotch is a foliar wheat disease controlled by a combination of plant genetic resistances and fungicides use. R- gene-based qualitative resistance durability is limited due to gene-for-gene interactions with fungal avirulence ( Avr ) genes. Quantitative resistance is considered more durable but the mechanisms involved are not well documented. We hypothesize that genes involved in quantitative and qualitative plant-pathogen interactions are similar. A bi-parental population of Zymoseptoria tritici was inoculated on wheat cultivar 'Renan' and a linkage analysis performed to map QTL. Three pathogenicity QTL, Qzt-I05-1, Qzt-I05-6 and Qzt-I07-13 , were mapped on chromosomes 1, 6 and 13 in Z. tritici , and a candidate pathogenicity gene on chromosome 6 was selected based on its effector-like characteristics. The candidate gene was cloned by Agrobacterium tumefaciens -mediated transformation, and a pathology test assessed the effect of the mutant strains on 'Renan'. This gene was demonstrated to be involved in quantitative pathogenicity. By cloning a newly annotated quantitative-effect gene in Z. tritici that is effector-like, we demonstrated that genes underlying pathogenicity QTL can be similar to Avr genes. This opens up the previously probed possibility that 'gene-for-gene' underlies not only qualitative but also quantitative plant-pathogen interactions in this pathosystem. Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. (Copyright © 2023 Langlands-Perry, Pitarch, Lapalu, Cuenin, Bergez, Noly, Amezrou, Gélisse, Barrachina, Parrinello, Suffert, Valade and Marcel.)
Databáze:	MEDLINE
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