Genetics of resistance to Zymoseptoria tritici and applications to wheat breeding

Brown, J. K. M.; Chartrain, Laëtitia; Lasserre-Zuber, Pauline; Saintenac, Cyrille

doi:10.1016/j.fgb.2015.04.017

Cited by 210 publications

(318 citation statements)

References 89 publications

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“…In none of these three cultivars did the presence of Avr3D1 completely abolish lesion development and pycnidia production, demonstrating that the quantitative nature of Avr3D1 3D1 ‐induced resistance is a general phenomenon and not restricted to cv Runal. All three cultivars that exhibited Avr3D1 3D1 ‐induced resistance were reported to carry the resistance gene Stb7 (Brown et al ., 2015) and are also likely to carry the linked resistance gene Stb12 (Chartrain et al ., 2005), leading us to propose Stb7 and Stb12 as putative candidate resistance proteins recognising Avr3D1 3D1 .…”

Section: Resultsmentioning

confidence: 99%

“…AvrStb6 is recognised by the resistance protein Stb6 in a gene‐for‐gene interaction that leads to a strong resistance response, completely blocking the progression of the infection (Kema et al ., 2000, 2018; Brading et al ., 2002; Saintenac et al ., 2018). In addition to Stb6 , 19 other race‐specific Stb resistance genes with large effects have been mapped, but their corresponding avirulence factors remain unknown (Brown et al ., 2015). We hypothesised that one of these Stb genes might be responsible for the differences in resistance of cultivar Runal to two Swiss strains (3D1 and 3D7, Stewart et al ., 2018).…”

Section: Introductionmentioning

confidence: 99%

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A fungal avirulence factor encoded in a highly plastic genomic region triggers partial resistance to septoria tritici blotch

et al. 2018

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Summary Cultivar‐strain specificity in the wheat–Zymoseptoria tritici pathosystem determines the infection outcome and is controlled by resistance genes on the host side, many of which have been identified. On the pathogen side, however, the molecular determinants of specificity remain largely unknown.We used genetic mapping, targeted gene disruption and allele swapping to characterise the recognition of the new avirulence factor Avr3D1. We then combined population genetic and comparative genomic analyses to characterise the evolutionary trajectory of Avr3D1.Avr3D1 is specifically recognised by wheat cultivars harbouring the Stb7 resistance gene, triggering a strong defence response without preventing pathogen infection and reproduction. Avr3D1 resides in a cluster of putative effector genes located in a genome region populated by independent transposable element insertions. The gene was present in all 132 investigated strains and is highly polymorphic, with 30 different protein variants identified. We demonstrated that specific amino acid substitutions in Avr3D1 led to evasion of recognition.These results demonstrate that quantitative resistance and gene‐for‐gene interactions are not mutually exclusive. Localising avirulence genes in highly plastic genomic regions probably facilitates accelerated evolution that enables escape from recognition by resistance proteins.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A fungal avirulence factor encoded in a highly plastic genomic region triggers partial resistance to septoria tritici blotch

et al. 2018

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“…The major genes tend to follow the gene-for-gene interaction and thus are race-specific. To date, 21 resistance genes are identified and tagged by molecular markers (10). Although these race-specific genes are unlikely to be durable, changes in the pathogen population are relatively slow and often resistance remains effective for decades.…”

Section: Breeding Resistant Cultivars To Reduce Disease Impactsmentioning

confidence: 99%

“…A combination of several minor genes of moderate-tosmall effects leads to resistance durability. To date, 89 meta-QTLs have been identified; however, some QTLs are mapped at or near known genes, especially Stb6, which is present in several sources of resistance (10). New broad-spectrum resistance to STB derived from synthetic hexaploid wheat was also recently identified (34,88).…”

Section: Breeding Resistant Cultivars To Reduce Disease Impactsmentioning

confidence: 99%

Disease Impact on Wheat Yield Potential and Prospects of Genetic Control

Singh

Rutkoski

et al. 2016

Annu. Rev. Phytopathol.

357

213

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Wheat is grown worldwide in diverse geographical regions, environments, and production systems. Although many diseases and pests are known to reduce grain yield potential and quality, the three rusts and powdery mildew fungi have historically caused major crop losses and continue to remain economically important despite the widespread use of host resistance and fungicides. The evolution and fast spread of virulent and more aggressive race lineages of rust fungi have only worsened the situation. Fusarium head blight, leaf spotting diseases, and, more recently, wheat blast (in South America and Bangladesh) have become diseases of major importance in recent years largely because of intensive production systems, the expansion of conservation agriculture, undesirable crop rotations, or increased dependency on fungicides. High genetic diversity for race-specific and quantitative resistance is known for most diseases; their selection through phenotyping reinforced with molecular strategies offers great promise in achieving more durable resistance and enhancing global wheat productivity.

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“…isolates. However, cultivars without quantitative resistance genes will possess acceptable resistance for a shorter period (Brown et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

The new winter wheat cultivars ‘Kena DS’, ‘Gaja DS’,‘Sedula DS’ and ‘Herkus DS’ for increased yield stability

Ruzgas

Liatukas

Razbadauskienė

et al. 2017

Zemdirbyste-Agriculture

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Please use the following format when citing the article: Ruzgas V., Liatukas Ž., Razbadauskienė K., Koppel R., Brazauskas G. 2017. The new winter wheat cultivars 'Kena DS', 'Gaja DS','Sedula DS' and 'Herkus DS' for increased yield stability. Zemdirbyste-Agriculture, 104 (4): 291-298 DOI 10.13080/z-a.2017.104.037 ISSN 1392-3196 / e-ISSN 2335-8947 Zemdirbyste-Agriculture, vol. 104, No. 4 (2017), p. 291-298 DOI 10.13080/z-a.2017 The new winter wheat cultivars 'Kena DS', 'Gaja DS', 'Sedula DS' and 'Herkus DS' for increased yield stability AbstractThe new cultivars of winter wheat 'Kena DS', 'Gaja DS', 'Sedula DS' and 'Herkus DS' were developed at Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry. The cultivars are well adapted to the temperate climate conditions with occasionally low temperatures in the winter season. The mean winter hardiness of the cultivars was evaluated by 7.8, 7.3, 8.2 and 7.3 scores, respectively and surpassed the well adapted and previously widely grown check cultivar 'Zentos' (6.8 scores). The cultivars exhibit good resistance to sprouting in ears, which is important in regions with high humidity during the harvesting period. They can be grown under sustainable and high input growing conditions. The mean grain yield of cultivars 'Kena DS', 'Sedula DS', 'Gaja DS' and 'Herkus DS' in high input fields during 2011-2016 was 8.7, 8.6, 9.9 and 9.1 t ha -1 , respectively. The grain yield of the high yielding check cultivar 'Skagen' was 8.6 t ha -1 . The mean protein content of cultivars 'Kena DS', 'Sedula DS', 'Gaja DS' and 'Herkus DS' was 14.3, 13.3, 13.6 and 13.3 %, sedimentation value -61.2, 49.2, 34.5 and 49.3 ml, respectively. The dough stability of the new cultivars determined by a Brabender's pharinograph was 12.7, 6.0, 7.3 and 6.9 min, volume of bread baked from 300 g of flour was 1600, 1650, 1700 and 1520 cm 3 , respectively. The total baking value index of the cultivars 'Kena DS', 'Sedula DS', 'Gaja DS and 'Herkus DS' was evaluated by 700, 725, 750 and 660 scores respectively, where the excellent bread-making cultivar 'Ada' attained 670 scores. The new cultivars exhibit good resistance to powdery mildew (Blumeria graminis DC), acceptable resistance to tan spot (Pyrenophora tritici-repentis Died.), take-all (Gauemanomyces graminis Sacc.), Septoria glume blotch (Phaeosphaeria nodorum E. Müll) and Septoria leaf blotch (Zymoseptoria tritici (Desm.) The cultivars are included in the Lithuanian National List of Plant Varieties and EC Common Catalogue of Cultivars of Agricultural Plant Species.

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Genetics of resistance to Zymoseptoria tritici and applications to wheat breeding

Cited by 210 publications

References 89 publications

A fungal avirulence factor encoded in a highly plastic genomic region triggers partial resistance to septoria tritici blotch

A fungal avirulence factor encoded in a highly plastic genomic region triggers partial resistance to septoria tritici blotch

Disease Impact on Wheat Yield Potential and Prospects of Genetic Control

The new winter wheat cultivars ‘Kena DS’, ‘Gaja DS’,‘Sedula DS’ and ‘Herkus DS’ for increased yield stability

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