Characterization of Pyrenophora tritici-repentis (tan spot of wheat) races in Kazakhstan
Tan spot, caused by Pyrenophora tritici-repentis, is an economically important foliar disease of wheat in Kazakhstan. Population structure of the pathogen changes every year due to climate change. This study aimed to characterize the race structure of P. tritici-repentis isolates recovered from whea...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Firenze University Press
2022-07-01
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| Series: | Phytopathologia Mediterranea |
| Subjects: | |
| Online Access: | https://oajournals.fupress.net/index.php/pm/article/view/13178 |
| _version_ | 1811218765056049152 |
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| author | Madina KUMARBAYEVA Alma KOKHMETOVA Nadezhda KOVALENKO Makpal ATISHOVA Zhenis KEISHILOV Klara AITYMBETOVA |
| author_facet | Madina KUMARBAYEVA Alma KOKHMETOVA Nadezhda KOVALENKO Makpal ATISHOVA Zhenis KEISHILOV Klara AITYMBETOVA |
| author_sort | Madina KUMARBAYEVA |
| collection | DOAJ |
| description | Tan spot, caused by Pyrenophora tritici-repentis, is an economically important foliar disease of wheat in Kazakhstan. Population structure of the pathogen changes every year due to climate change. This study aimed to characterize the race structure of P. tritici-repentis isolates recovered from wheat in south and north Kazakhstan, and identify tan spot resistance in host genotypes based on disease phenotypes and molecular screening. Virulence profiles were determined within 40 isolates of the pathogen from wheat crops during the 2020 growing season. Seven races, (1, 3, 4, 5, 6, 7 and 8) were identified. A collection of 80 wheat accessions, including promising lines and cultivars from Kazakhstan and Russia, were evaluated for their reactions to races 1 and 5 of the pathogen, and to Ptr ToxA and Ptr ToxB, using greenhouse assessments and molecular markers diagnostic for the Tsn1 and Tsc2 genes. From a practical viewpoint, 18 wheat genotypes were insensitive to the two races and the two Ptr toxins. This resistant germplasm can be used in breeding programmes aiming to develop wheat varieties resistant to P. tritici-repentis.
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| first_indexed | 2024-04-12T07:14:54Z |
| format | Article |
| id | doaj.art-42e02b6d483e4d17b192f2dc4429880e |
| institution | Directory Open Access Journal |
| issn | 0031-9465 1593-2095 |
| language | English |
| last_indexed | 2024-04-12T07:14:54Z |
| publishDate | 2022-07-01 |
| publisher | Firenze University Press |
| record_format | Article |
| series | Phytopathologia Mediterranea |
| spelling | doaj.art-42e02b6d483e4d17b192f2dc4429880e2022-12-22T03:42:30ZengFirenze University PressPhytopathologia Mediterranea0031-94651593-20952022-07-0110.36253/phyto-13178Characterization of Pyrenophora tritici-repentis (tan spot of wheat) races in KazakhstanMadina KUMARBAYEVA0Alma KOKHMETOVA1Nadezhda KOVALENKO2Makpal ATISHOVA3Zhenis KEISHILOV4Klara AITYMBETOVA5Institute of Plant Biology and Biotechnology, 050040, Timiryazev Street 45, Almaty, KazakhstanInstitute of Plant Biology and Biotechnology, 050040, Timiryazev Street 45, Almaty, KazakhstanAll-Russian Research Institute of Plant Protection, 196608, Podbelskogo 3, St. Petersburg-Pushkin, RussiaInstitute of Plant Biology and Biotechnology, 050040, Timiryazev Street 45, Almaty, KazakhstanInstitute of Plant Biology and Biotechnology, 050040, Timiryazev Street 45, Almaty, KazakhstanInstitute of Plant Biology and Biotechnology, 050040, Timiryazev Street 45, Almaty, KazakhstanTan spot, caused by Pyrenophora tritici-repentis, is an economically important foliar disease of wheat in Kazakhstan. Population structure of the pathogen changes every year due to climate change. This study aimed to characterize the race structure of P. tritici-repentis isolates recovered from wheat in south and north Kazakhstan, and identify tan spot resistance in host genotypes based on disease phenotypes and molecular screening. Virulence profiles were determined within 40 isolates of the pathogen from wheat crops during the 2020 growing season. Seven races, (1, 3, 4, 5, 6, 7 and 8) were identified. A collection of 80 wheat accessions, including promising lines and cultivars from Kazakhstan and Russia, were evaluated for their reactions to races 1 and 5 of the pathogen, and to Ptr ToxA and Ptr ToxB, using greenhouse assessments and molecular markers diagnostic for the Tsn1 and Tsc2 genes. From a practical viewpoint, 18 wheat genotypes were insensitive to the two races and the two Ptr toxins. This resistant germplasm can be used in breeding programmes aiming to develop wheat varieties resistant to P. tritici-repentis. https://oajournals.fupress.net/index.php/pm/article/view/13178Tan spotPtr ToxAPtr ToxBRace 1Race 5 |
| spellingShingle | Madina KUMARBAYEVA Alma KOKHMETOVA Nadezhda KOVALENKO Makpal ATISHOVA Zhenis KEISHILOV Klara AITYMBETOVA Characterization of Pyrenophora tritici-repentis (tan spot of wheat) races in Kazakhstan Phytopathologia Mediterranea Tan spot Ptr ToxA Ptr ToxB Race 1 Race 5 |
| title | Characterization of Pyrenophora tritici-repentis (tan spot of wheat) races in Kazakhstan |
| title_full | Characterization of Pyrenophora tritici-repentis (tan spot of wheat) races in Kazakhstan |
| title_fullStr | Characterization of Pyrenophora tritici-repentis (tan spot of wheat) races in Kazakhstan |
| title_full_unstemmed | Characterization of Pyrenophora tritici-repentis (tan spot of wheat) races in Kazakhstan |
| title_short | Characterization of Pyrenophora tritici-repentis (tan spot of wheat) races in Kazakhstan |
| title_sort | characterization of pyrenophora tritici repentis tan spot of wheat races in kazakhstan |
| topic | Tan spot Ptr ToxA Ptr ToxB Race 1 Race 5 |
| url | https://oajournals.fupress.net/index.php/pm/article/view/13178 |
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