IPM Strategies and Their Dilemmas Including an Introduction to www.eurowheat.org

Jørgensen, Lise Nistrup; Hovmøller, Mogens S.; Hansen, J. G.; Lassen, P.; Clark, Bill; Bayles, R. A.; Rodemann, Bernd; Flath, Kerstin; Jahn, Marga; Goral, Tomas; Czembor, Jerzy H.; Cheyron, Philip; Maumené, Claude; Pope, Claude De; Bán, Rita; Nielsen, Ghita Cordsen; Berg, Gunilla

doi:10.1016/s2095-3119(13)60646-2

Cited by 133 publications

(96 citation statements)

References 50 publications

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“…Zymoseptoria tritici (syn Mycosphaerella graminicola) is the fungal pathogen causing Septoria tritici blotch, currently the most damaging wheat disease in Europe (Jorgensen et al, 2014;O'Driscoll et al, 2014). The 39.7 Mb reference genome is among the best-assembled fungal genomes available.…”

Section: Introductionmentioning

confidence: 99%

“…Z. tritici is a dimorphic fungus than can grow either as filamentous hyphae or yeast-like budding cells when grown in vitro (Nadal et al, 2008). The pathogen is found in wheat-growing areas worldwide covering a wide range of temperature regimens (Eyal et al, 1987;Zhan and McDonald, 2011;Jorgensen et al, 2014;O'Driscoll et al, 2014). An earlier study that included 138 Z. tritici strains sampled from diverse thermal environments on three continents found evidence for thermal adaptation and concluded that most of the thermal adaptation was due to genetic differentiation rather than phenotypic plasticity (Zhan and McDonald, 2011).…”

Section: Introductionmentioning

confidence: 99%

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QTL mapping of temperature sensitivity reveals candidate genes for thermal adaptation and growth morphology in the plant pathogenic fungus Zymoseptoria tritici

et al. 2016

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Different thermal environments impose strong, differential selection on populations, leading to local adaptation, but the genetic basis of thermal adaptation is poorly understood. We used quantitative trait locus (QTL) mapping in the fungal wheat pathogen Zymoseptoria tritici to study the genetic architecture of thermal adaptation and identify candidate genes. Four wild-type strains originating from the same thermal environment were crossed to generate two mapping populations with 263 (cross 1) and 261 (cross 2) progeny. Restriction site-associated DNA sequencing was used to genotype 9745 (cross 1) and 7333 (cross 2) singlenucleotide polymorphism markers segregating within the mapping population. Temperature sensitivity was assessed using digital image analysis of colonies growing at two different temperatures. We identified four QTLs for temperature sensitivity, with unique QTLs found in each cross. One QTL had a logarithm of odds score 411 and contained only six candidate genes, including PBS2, encoding a mitogen-activated protein kinase kinase associated with low temperature tolerance in Saccharomyces cerevisiae. This and other QTLs showed evidence for pleiotropy among growth rate, melanization and growth morphology, suggesting that many traits can be correlated with thermal adaptation in fungi. Higher temperatures were highly correlated with a shift to filamentous growth among the progeny in both crosses. We show that thermal adaptation has a complex genetic architecture, with natural populations of Z. tritici harboring significant genetic variation for this trait. We conclude that Z. tritici populations have the potential to adapt rapidly to climate change and expand into new climatic zones.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

QTL mapping of temperature sensitivity reveals candidate genes for thermal adaptation and growth morphology in the plant pathogenic fungus Zymoseptoria tritici

et al. 2016

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“…It is the most damaging wheat pathogen in Europe (Jorgensen et al, 2014). Z. tritici has shown an impressive capacity to rapidly evolve resistance to fungicides (Cools and Fraaije, 2013;Cools et al, 2007;Estep et al, in press;Fraaije et al, 2005;Torriani et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

QTL mapping of fungicide sensitivity reveals novel genes and pleiotropy with melanization in the pathogen Zymoseptoria tritici

Lendenmann

Croll

McDonald

2015

Fungal Genetics and Biology

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“…Sharp eyespot severity is associated with significant decreases in plant and ear weight, reductions in yield components, and increases in grain protein and wet gluten content [39,40]. Fusarium species are soil-borne fungi that may be parasites, endophytes, or pathogens of healthy host plants depending on the ecological context, and they are known for their ability to survive in soil in the form of spores or saprotrophs [33,38]. Many Fusarium species are dangerous due to the production of mycotoxins from trichothecene group B-deoxynivalenol (DON) and nivalenol (NIV) [3].…”

Section: Introductionmentioning

confidence: 99%

Risk assessment posed by diseases in context of integrated management of wheat

et al. 2016

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Three strict field experiments (2010)(2011)(2012)(2013) were conducted at the Experimental Station of Cultivar Testing in Chrząstowo in Poland (53°11 0 N, 17°35 0 E). Diagnosis of fungal pathogens to determine the threats posed by complex of diseases to two wheats, cv. Cytra (bread type) and cv. Monsun (quality type), was carried out. Risk assessment in the context of integrated pest and disease management considering crop sequence, sowing date, and control by fungicide application was carried out. This method also investigates the grain yields of wheat to address the context of disease risk with grain production. The experimental factors were fixed: pre-crop for wheat (sugar beet-B, corn for grain-C, wheat-W), the sowing date: facultative in late autumn (F) and spring (S), fungicidal intensification: C1-untreated, C2-one treatment at T2 stage (BBCH 32-65) with fluoxastrobin and prothioconazole, C3-two treatments made at T1 (BBCH 30-32) with prothioconazole and spiroxamine and at T2 (BBCH 41-65) with fluoxastrobin and prothioconazole, C4-three treatments performed at stage T1 (BBCH 29-31) with prothioconazole and spiroxamine, T2 (BBCH 37-51) with fluoxastrobin and prothioconazole, and T3 (BBCH 65-69) with prothioconazole and tebuconazole. A total of 12 wheat diseases were diagnosed, four units for foot and root rot and eight related with leaf and head. The most healthy status reached the crops of cv. 'Monsun': BFC4-C3, BSC4-C3, WSC4-C3, WFC4-C3, CFC4-C2 CSC4-C3, and for root and stem base: BSC4-C1, BFC4-C1, CSC4-C1, CFC4-C1. The lowest risk possessed by root and root rot diseases for cv. Cytra had crops: BFC4-C1, BSC3, CFC4-C3, and due to leaf and ear diseases the crops: BFC2-C4, BSC2-C4, WFC2-C4, WSC2-C4, CFC2-C4, CSC2-C4. Crop sequence was found the prime factor for risk posed by foot and root rot diseases, while the lack of fungicidal control mostly impacted the risk posed by leaf and head pathogens. The highest increases in yield from controlled crops were attributed to facultative wheat followed after beet (49-66 %) or wheat (36-47 %). Wheat responded positively to C2 program with a rise in yield of 26 % for cv. ''Monsun'' and 21 % for cv. ''Cytra.'' The cost-effectiveness based on two indicators E and Q has been calculated for fungicide treatments on all 48 crops.

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IPM Strategies and Their Dilemmas Including an Introduction to www.eurowheat.org

Cited by 133 publications

References 50 publications

QTL mapping of temperature sensitivity reveals candidate genes for thermal adaptation and growth morphology in the plant pathogenic fungus Zymoseptoria tritici

QTL mapping of temperature sensitivity reveals candidate genes for thermal adaptation and growth morphology in the plant pathogenic fungus Zymoseptoria tritici

QTL mapping of fungicide sensitivity reveals novel genes and pleiotropy with melanization in the pathogen Zymoseptoria tritici

Risk assessment posed by diseases in context of integrated management of wheat

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