Cereal resistance to Fusarium head blight and possibilities of its improvement through breeding

Kosová, Klára; Chrpová, J.; Šíp, V.

doi:10.17221/63/2009-cjgpb

Cited by 34 publications

(22 citation statements)

References 126 publications

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“…spontaneum), einkorn wheat (Triticum monococcum), wild emmer (Triticum dicoccum ssp. dicoccoides) and others represent important sources of QTLs underlying an enhanced resistance to several stressors, especially abiotic stressors with a strong dehydrative component such as drought, heat, salinity, as well as pathogens such as powdery mildew, leaf rust (Nevo 1992), Fusarium head blight (reviewed in Kosová et al 2009) and others.…”

Section: Genetic Determination Of Drought Resistance In Barley and Wheatmentioning

confidence: 99%

Breeding for enhanced drought resistance in barley and wheat - drought-associated traits, genetic resources and their potential utilization in breeding programmes

Kosová

Vítámvás

Urban

et al. 2014

Czech J. Genet. Plant Breed.

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Kosová K., Vítámvás P., Urban M.O., Kholová J., Prášil I.T. (2014): Breeding for enhanced drought resistance in barley and wheat -drought-associated traits, genetic resources and their potential utilization in breeding programmes. Czech J. Genet. Plant Breed., 50: 247-261.Drought represents the most devastating abiotic stress factor worldwide. It severely limits plant growth and development as well as agricultural characteristics including the final yield. The aim of this review is to summarise recent results of the breeding of barley (Hordeum vulgare) and wheat (Triticum aestivum; T. durum) for improved resistance to drought stress. First, drought-associated terms and definitions are outlined and plant strategies to cope with drought are presented. A brief overview of plant physiological mechanisms involved in water uptake and release is provided. Photosynthesis-related parameters (CO 2 availability and associated features such as ribulose-1,5-bisphosphate carboxylase/oxygenase activity, 13 C discrimination activity, water use efficiency) are discussed due to the crucial role of plant leaf stomata in both photosynthesis and water management. The second part describes the present state of research on drought resistance-associated traits in barley and wheat. Different strategies of plant water management aimed at maximising the final yield under various types of drought stress are discussed. Possibilities of the detection, identification and characterization of quantitative trait loci (QTLs) in barley and wheat germplasm are discussed and the future approaches to breeding for enhanced drought resistance as a complex physiological and agronomical trait are outlined.Keywords: cereals; drought resistance; genetic mapping; genetic materials; plant water regime; QTL analysisCommon wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.) represent the most important cereal crops worldwide whose production is severely limited by drought in many production areas. It is estimated that ca 65 million ha of wheat production area are affected by drought (FAO 2013). Recently, several summarising reviews on crop breeding for drought environments have been published (Cattivelli et al. 2008;Fleury et al. 2010;Passioura & Angus 2010). Our review focuses on problems and challenges associated with breeding for an enhanced drought resistance in small-grain cereals, namely barley (Hordeum vulgare L.), common wheat (Triticum aestivum L.) and durum wheat (Triticum durum Desf.). An overview of recent mapping studies aimed at detection of quantitative trait loci (QTLs) associated with drought resistance and drought-affected yield parameters in barley and wheat is provided in the second part of the review.There are several definitions of drought depending on different points of view. From a meteorological point of view, drought means a lack of precipitation (rain, snow) with respect to average values at a given time period in a given area. From a physiological point of view, drought means an imbalance in the plant water regime ...

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Section: Genetic Determination Of Drought Resistance In Barley and Wheatmentioning

confidence: 99%

Breeding for enhanced drought resistance in barley and wheat - drought-associated traits, genetic resources and their potential utilization in breeding programmes

Kosová

Vítámvás

Urban

et al. 2014

Czech J. Genet. Plant Breed.

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“…(Mesterházy et al 2005). It is advantageous that in agricultural practice there are now available wheat cultivars possessing an acceptable moderate resistance level (Kosová et al 2009). The obtained results are in favour of the statement of Mesterházy (2003) that the highly susceptible cultivars should be withdrawn from commercial production.…”

Section: Resultsmentioning

confidence: 99%

The impact of cultivar resistance and fungicide treatment on mycotoxin content in grain and yield losses caused by Fusarium head blight in wheat

Šíp¹,

Chrpová²,

Veškrna³

et al. 2010

CZECH J GENET PLANT

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Abstract:Reactions to artificial infection with Fusarium graminearum isolates and a new fungicide Swing Top were studied in nine winter wheat cultivars evaluated in field experiments at two sites for three years for expression of symptoms, deoxynivalenol (DON) content in grain and grain yield. The results demonstrate a pronounced and relatively stable effect of cultivar resistance on reducing head blight, grain yield losses and contamination of grain by the mycotoxin DON. It is advantageous that the moderate level of resistance to Fusarium head blight (FHB) was detected also in two commonly grown Czech cultivars Sakura and Simila. Average fungicide efficacy for DON was 49.5% and 63.9% for a reduction in yield loss, however, it was found highly variable in different years and sites. The joint effect of cultivar resistance and fungicide treatment was 86.5% for DON and even 95.4% for reducing the yield loss. A very high risk was documented for susceptible cultivars and also the effects of medium responsive cultivars were found to be highly variable in different environments and therefore not guaranteeing sufficient protection against FHB under different conditions.

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“…The seriousness of assessment of specific combination abilities is justified especially through the significantly different application of parent varieties and still rather negative experience during the use of remote forms with high resistance (e.g. Sumai3) in the breeding process (Kosová et al 2009). A prospective strategy in the breeding of wheat seems to be the use of the varieties adapted to European conditions - Ittu et al (2002).…”

Section: Discussionmentioning

confidence: 99%

Combining ability analysis of fusarium head blight resistance in European winter wheat varieties

Šíp

Chrpová

Štěrbová

et al. 2017

Cereal Research Communications

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The aims of the present study were to estimate the general combining ability (GCA) and the specific combining ability (SCA) effects controlling type II FHB resistance across environments in a set of European winter wheat varieties and, for purposes of future selection, to identify potential combinations of parents with suitable levels of FHB resistance. Parental varieties as well as F 1 generations were evaluated under both field and greenhouse conditions in two years. The results of the present study indicate that in the F 1 generation mean DON content was relatively lowest after crossing of moderately resistant parents (Sakura/Bakfis, Sakura/Federer, Petrus/Bakfis, and Sakura/Petrus), and mean DON content is low also after crossing the moderately resistant Bakfis variety with the susceptible Biscay and Cubus varieties. Evaluation of crosses in the F 1 generation was followed by evaluation of selected crosses (derived from the Bakfis and Sakura varieties) in the F 2 generation. Correlations between F 1 and F 2 were highly significant in relation both to their DON content and visual symptom score (VSS), as well as between the individual experiments (and in the different years). The only exception was in the case of the 2014 field experiment, when inoculation was successful but conditions were not optimal for the disease to progress and DON to accumulate. The selection of a suitable parental variety (with a high GCA) can markedly influence the success rate of breeding for resistance to FHB. Detection of high SCA in the F 1 generation is important for directing breeders to promising combinations for achieving FHB resistance. It was demonstrated here that low DON content may be achieved even after crossing a moderately resistant variety with susceptible varieties. Another possibility is to make use of heterosis directly for acquiring resistance in hybrid wheat (for decreasing DON content and manifestation of symptoms).

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Cereal resistance to Fusarium head blight and possibilities of its improvement through breeding

Cited by 34 publications

References 126 publications

Breeding for enhanced drought resistance in barley and wheat - drought-associated traits, genetic resources and their potential utilization in breeding programmes

Breeding for enhanced drought resistance in barley and wheat - drought-associated traits, genetic resources and their potential utilization in breeding programmes

The impact of cultivar resistance and fungicide treatment on mycotoxin content in grain and yield losses caused by Fusarium head blight in wheat

Combining ability analysis of fusarium head blight resistance in European winter wheat varieties

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