Mating type idiomorphs of Pyrenophora teres in Turkey

Oğuz, Arzu Çelik; Ölmez, Fatih; Karakaya, Aziz

doi:10.13080/z-a.2018.105.035

Cited by 11 publications

(15 citation statements)

References 29 publications

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“…Both Ptt and Ptm occur as genetically distinct populations and can be separated in the field based on lesion morphology. Although these two forms can be hybridized under laboratory conditions ( Campbell and Crous 2003 ), hybridization under field conditions is extremely rare ( Campbell et al 2002 ; McLean et al 2014 ; Akhavan et al 2015 ; Çelik Oğuz et al 2018 ; Poudel et al 2019 ). However, both forms of P. teres undergo form specific sexual as well as asexual reproduction ( Karakaya et al 2004 ; Serenius et al 2005 ; Akhavan et al 2015 ; Çelik Oğuz et al 2018 , 2019b ; Poudel et al 2019 ).…”

Section: Introductionmentioning

confidence: 99%

“…Although these two forms can be hybridized under laboratory conditions ( Campbell and Crous 2003 ), hybridization under field conditions is extremely rare ( Campbell et al 2002 ; McLean et al 2014 ; Akhavan et al 2015 ; Çelik Oğuz et al 2018 ; Poudel et al 2019 ). However, both forms of P. teres undergo form specific sexual as well as asexual reproduction ( Karakaya et al 2004 ; Serenius et al 2005 ; Akhavan et al 2015 ; Çelik Oğuz et al 2018 , 2019b ; Poudel et al 2019 ). The complex nature of this reproduction system poses serious evolutionary risks for resistance breeding as populations contain diverse effector repertoires, that in different combinations, can rapidly overcome deployed resistances ( McDonald and Linde 2002 ).…”

Section: Introductionmentioning

confidence: 99%

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Genome-wide association mapping of Pyrenophora teres f. maculata and Pyrenophora teres f. teres resistance loci utilizing natural Turkish wild and landrace barley populations

Clare

Oğuz

Effertz

et al. 2021

G3 Genes|Genomes|Genetics

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In order to survive sub-zero temperatures, some plants undergo cold acclimation where low, non-freezing temperatures and/or shortened day lengths allow cold hardening and survival during subsequent freeze events. Central to this response is the plasma membrane, where low-temperature is perceived and cellular homeostasis must be preserved by maintaining membrane integrity. Here, we present the first plasma membrane proteome of cold-acclimated Brachypodium distachyon, a model species for the study of monocot crops. A time course experiment investigated cold acclimation-induced changes in the proteome following two-phase partitioning plasma membrane enrichment and label-free quantification by nano-liquid chromatography mass spectrophotometry. Two days of cold acclimation were sufficient for membrane protection as well as an initial increase in sugar levels, and coincided with a significant change in the abundance of 154 proteins. Prolonged cold acclimation resulted in further increases in soluble sugars and abundance changes in more than 680 proteins, suggesting both a necessary early response to low-temperature treatment, as well as a sustained cold acclimation response elicited over several days. A meta-analysis revealed that the identified plasma membrane proteins have known roles in low-temperature tolerance, metabolism, transport, and pathogen defense as well as drought, osmotic stress and salt resistance suggesting crosstalk between stress responses, such that cold acclimation may prime plants for other abiotic and biotic stresses. The plasma membrane proteins identified here present keys to an understanding of cold tolerance in monocot crops and the hope of addressing economic losses associated with modern climate-mediated increases in frost events.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Genome-wide association mapping of Pyrenophora teres f. maculata and Pyrenophora teres f. teres resistance loci utilizing natural Turkish wild and landrace barley populations

Clare

Oğuz

Effertz

et al. 2021

G3 Genes|Genomes|Genetics

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“…In Western Australia (Gupta & Loughman, 2001), South Africa (Campbell et al., 2002) and Italy (Rau et al., 2003) both forms were common. There is the possibility of changing net and spot form ratios over the years (Çelik Oğuz et al., 2018) but the reasons are not clear.…”

Section: Discussionmentioning

confidence: 99%

Sexual recombination and genetic diversity in Iranian populations of Pyrenophora teres

Dokhanchi

Arzanlou

Abed-Ashtiani

2021

Journal of Phytopathology

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Pyrenophora teres is an economically important pathogen of barley worldwide causing net blotch diseases. In this study, the frequency and mating-type alleles's distribution as well as genetic diversity of P. teres were assessed on micro-spatial scale and also on macro-geographical scale to find out whether a sexual cycle is possible within its Iranian populations. A multiplex PCR assay was developed for simultaneous identification and recognition of P. teres f. teres and P. teres f. maculata and to screen their mating-type alleles. 118 isolates of P. teres were procured from barley fields of East Azerbaijan province during 2017-2018. Among 89 isolates of P. teres f. teres examined, 39 isolates were found as MAT1-1 and 50 isolates were found to be MAT1-2.Among 29 isolates of P. teres f. maculata examined, 17 isolates were found as MAT1-1 and 12 isolates were found to be MAT1-2 with the dominancy belonging to MAT1-1.Nearly same mating-type alleles distribution within and between various populations of P. teres f. teres (1:1 ratio; χ 2 = 1.36) and P. teres f. maculata (1:1 ratio; χ 2 = 0.862) was observed. Genetic diversity assessment of 118 P. teres isolates was carried out through inter-simple sequence repeat (ISSR) analysis and results revealed that there was 70.83% and 63.89% polymorphism among the isolates of P. teres f. teres and P. teres f. maculata, respectively. No relation was observed between the isolates and their mating as well as geographical type. Among collected isolates (89 P. teres f. teres and 29 P. teres f. maculata isolates), the gene diversity was generally similar (h = 0.280 and h = 0.238 for P. teres f. teres and P. teres f. maculata, respectively). Based on our findings and referring to the prior data on the structure of P. teres population, we conclude that in the majority of tested areas, this fungal species might have the potential to undergo regular sexual recombination cycles.

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“…Two mating types are required for P. teres, a heterotallic fungus, to reproduce sexually [70]. The pathogen has great evolutionary potential as it can be spread both sexually and asexually [7,71,72]. Sexual reproduction between two forms is possible [61,65,67,73].…”

Section: Pyrenophora Teres Drechsler (Anamorph: Drechslera Teres (Sacc) Shoem)mentioning

confidence: 99%

Genetic Diversity of Barley Foliar Fungal Pathogens

Oğuz

Karakaya

2021

Agronomy

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Powdery mildew, net blotch, scald, spot blotch, barley stripe, and leaf rust are important foliar fungal pathogens of barley. Fungal leaf pathogens negatively affect the yield and quality in barley plant. Virulence changes, which can occur in various ways, may render resistant plants to susceptible ones. Factors such as mutation, population size and random genetic drift, gene and genotype flow, reproduction and mating systems, selection imposed by major gene resistance, and quantitative resistance can affect the genetic diversity of the pathogenic fungi. The use of fungicide or disease-resistant barley genotypes is an effective method of disease control. However, the evolutionary potential of pathogens poses a risk to overcome resistance genes in the plant and to neutralize fungicide applications. Factors affecting the genetic diversity of the pathogen fungus may lead to the emergence of more virulent new pathotypes in the population. Understanding the factors affecting pathogen evolution, monitoring pathogen biology, and genetic diversity will help to develop effective control strategies.

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Mating type idiomorphs of Pyrenophora teres in Turkey

Cited by 11 publications

References 29 publications

Genome-wide association mapping of Pyrenophora teres f. maculata and Pyrenophora teres f. teres resistance loci utilizing natural Turkish wild and landrace barley populations

Genome-wide association mapping of Pyrenophora teres f. maculata and Pyrenophora teres f. teres resistance loci utilizing natural Turkish wild and landrace barley populations

Sexual recombination and genetic diversity in Iranian populations of Pyrenophora teres

Genetic Diversity of Barley Foliar Fungal Pathogens

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