Genetic diversity of Pyrenophora teres in Algeria

Lhadj, Wassila Ahmed; Boungab, Karima; Assia, Fatiha Righi; Oğuz, Arzu Çelik; Karakaya, Aziz; Ölmez, Fatih

doi:10.1007/s42161-021-01010-0

Cited by 4 publications

(3 citation statements)

References 28 publications

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“…Grain yield and absolute grain weight were reduced by 9−11.1% and 7.8−8.7%, respectively, in investigations conducted in Denmark (Smedegård-Petersen 1974). In Kenya (Were et al 2016) and Algeria (Lhadj et al 2022), barley grain yield under conditions conducive to infection can be reduced by as much as 15−40% in the absence of proper protection. Other authors have reported similar figures, ranging from 10% to 44% (Khan 1989;Jayasena et al 2002Jayasena et al , 2007Ma et al 2004;Afanasenko et al 2015;Mair et al 2016;Rozanova et al 2019;McLean & Hollaway 2019;Taibi et al 2016;Abebe 2021).…”

Section: Reviewmentioning

confidence: 99%

“…It was also reported in Mexico (Romero-Cortes et al 2021), Argentina, Brazil, Uruguay, Colombia and Peru (Garozi et al 2020;Uranga et al 2020;Abebe 2021;Gamba et al 2021), as well as in Asian countries such as Iran (Dokhanchi et al 2021;Vasighzadeh et al 2022), Israel (Ronen et al 2019), Syria (Bouajila et al 2011), Uzbekistan (Abebe 2021), Afghanistan, Armenia, China, India, Iraq, Japan, Korea, Kyrgyzstan, Myanmar, Nepal, Pakistan, and Turkmenistan. It is also widespread across Africa, with reports for Tunisia, Ethiopia, Kenya, Algeria, Morocco, Egypt, Libya, South Africa, Saint Helena, Tanzania, and Zambia (Scott 1992;Louw et al 1996;Douiyssi et al 1998;El Yousfi & Ezzahiri 2001Campbell et al 2002;Jebbouj & El Yousfi 2010;Bouajila et al 2011;Owino et al 2013;Taibi et al 2016;Were et al 2016;Lammari et al 2020a;Abebe 2021;Mohammed et al 2021;Lhadj et al 2022). Likewise, net…”

Section: Geographical Distributionmentioning

confidence: 99%

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Net blotch (Pyrenophora teres Drechsler): An increasingly significant threat to barley production

Tomić,

Trkulja,

Matić

et al. 2024

Plant Prot. Sci.

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Section: Reviewmentioning

confidence: 99%

Section: Geographical Distributionmentioning

confidence: 99%

Net blotch (Pyrenophora teres Drechsler): An increasingly significant threat to barley production

Tomić,

Trkulja,

Matić

et al. 2024

Plant Prot. Sci.

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“…2003 ; Bakonyi and Justesen 2007 ), North America ( Akhavan et al . 2016 ), Algeria ( Ahmed Lhadj et al . 2022 ), Iran ( Vasighzadeh et al .…”

Section: Introductionmentioning

confidence: 99%

Widespread genetic heterogeneity and genotypic grouping associated with fungicide resistance among barley spot form net blotch isolates in Australia

Hassett

Muria-Gonzalez

Turner

et al. 2023

G3: Genes, Genomes, Genetics

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Spot form net blotch, caused by Pyrenophora teres f. maculata, is a major foliar disease of barley worldwide. Knowledge of the pathogen’s genetic diversity and population structure is critical for a better understanding of inherent evolutionary capacity and for the development of sustainable disease management strategies. Genome-wide, single nucleotide polymorphism data of 254 Australian isolates revealed genotypic diversity and an absence of population structure, either between states, or between fields and cultivars in different agro-ecological zones. This indicates there is little geographical isolation or cultivar directional selection and that the pathogen is highly mobile across the continent. However, two cryptic genotypic groups were found only in Western Australia, predominantly associated with genes involved in fungicide resistance. The findings in this study are discussed in the context of current cultivar resistance and the pathogen’s adaptive potential.

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Global Spread, Genetic Differentiation, and Selection of Barley Spot Form Net Blotch Isolates

Hassett,

Muria-Gonzalez,

Martin

et al. 2024

Phytopathology®

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Spot form of net blotch, caused by Pyrenophora teres f. maculata, is a significant necrotrophic disease of barley that spread world-wide in the 20th century. Genetic relationships were analysed to determine the diversity, survival and dispersal of a diverse collection of 346 isolates from Australia, Southern Africa, North America, Asia Minor and Europe. The results, based on genome-wide DArTseq data, indicated isolates from Turkey were the most differentiated with regional sub-structuring, together with individuals closely related to geographically distant genotypes. Elsewhere, population subdivision related to country of origin was evident, although low levels of admixturing was found that may represent rare genotypes or migration from unsampled populations. Canadian isolates were the next most diverged and Australian and South African the most closely related. With the exception of Turkish isolates, multiple independent Cyp51A mutation events (which confer insensitivity to demethylation inhibitor fungicides) between countries and within regions was evident, with strong selection for a transposable element insertion at the 3’ end of the promoter and counter-selection elsewhere. Individuals from Western Australia shared genomic regions and Cyp51A haplotypes with South African isolates, suggesting a recent common origin.

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Genetic diversity of Pyrenophora teres in Algeria

Cited by 4 publications

References 28 publications

Net blotch (Pyrenophora teres Drechsler): An increasingly significant threat to barley production

Net blotch (Pyrenophora teres Drechsler): An increasingly significant threat to barley production

Widespread genetic heterogeneity and genotypic grouping associated with fungicide resistance among barley spot form net blotch isolates in Australia

Global Spread, Genetic Differentiation, and Selection of Barley Spot Form Net Blotch Isolates

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