Phenotyping mediterranean durum wheat landraces for resistance to Zymoseptoria tritici in Tunisia
Durum wheat landraces have huge potential for the identification of genetic factors valuable for improving resistance to biotic stresses. Tunisia is known as a hot spot for Septoria tritici blotch disease (STB), caused by the fungus Zymoseptoria tritici (Z. tritici). In this context, a collection of...
| Autores principales: | , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
MDPI
2022
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/126540 |
| _version_ | 1855528199875723264 |
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| author | Ben M’Barek, Sarrah Laribi, Marwa Kouki, Hajer Castillo, Dalma Araar, Chayma Nefzaoui, Meriem Ammar, Karim Saint Pierre, Carolina Yahyaoui, Amor Hassine |
| author_browse | Ammar, Karim Araar, Chayma Ben M’Barek, Sarrah Castillo, Dalma Kouki, Hajer Laribi, Marwa Nefzaoui, Meriem Saint Pierre, Carolina Yahyaoui, Amor Hassine |
| author_facet | Ben M’Barek, Sarrah Laribi, Marwa Kouki, Hajer Castillo, Dalma Araar, Chayma Nefzaoui, Meriem Ammar, Karim Saint Pierre, Carolina Yahyaoui, Amor Hassine |
| author_sort | Ben M’Barek, Sarrah |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Durum wheat landraces have huge potential for the identification of genetic factors valuable for improving resistance to biotic stresses. Tunisia is known as a hot spot for Septoria tritici blotch disease (STB), caused by the fungus Zymoseptoria tritici (Z. tritici). In this context, a collection of 3166 Mediterranean durum wheat landraces were evaluated at the seedling and adult stages for STB resistance in the 2016–2017 cropping season under field conditions in Kodia (Tunisia). Unadapted/susceptible accessions were eliminated to reach the final set of 1059 accessions; this was termed the Med-collection, which comprised accessions from 13 countries and was also screened in the 2018–2019 cropping season. The Med-collection showed high frequency of resistance reactions, among which over 50% showed an immune reaction (HR) at both seedling and adult growth stages. Interestingly, 92% of HR and R accessions maintained their resistance levels across the two years, confirming the highly significant correlation found between seedling-and adult-stage reactions. Plant Height was found to have a negative significant effect on adult-stage resistance, suggesting that either this trait can influence disease severity, or that it can be due to environmental/epidemiological factors. Accessions from Italy showed the highest variability, while those from Portugal, Spain and Tunisia showed the highest levels of resistance at both growth stages, suggesting that the latter accessions may harbor novel QTLs effective for STB resistance. |
| format | Journal Article |
| id | CGSpace126540 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | CGSpace1265402025-12-08T10:29:22Z Phenotyping mediterranean durum wheat landraces for resistance to Zymoseptoria tritici in Tunisia Ben M’Barek, Sarrah Laribi, Marwa Kouki, Hajer Castillo, Dalma Araar, Chayma Nefzaoui, Meriem Ammar, Karim Saint Pierre, Carolina Yahyaoui, Amor Hassine agronomic characters hard wheat seedlings Durum wheat landraces have huge potential for the identification of genetic factors valuable for improving resistance to biotic stresses. Tunisia is known as a hot spot for Septoria tritici blotch disease (STB), caused by the fungus Zymoseptoria tritici (Z. tritici). In this context, a collection of 3166 Mediterranean durum wheat landraces were evaluated at the seedling and adult stages for STB resistance in the 2016–2017 cropping season under field conditions in Kodia (Tunisia). Unadapted/susceptible accessions were eliminated to reach the final set of 1059 accessions; this was termed the Med-collection, which comprised accessions from 13 countries and was also screened in the 2018–2019 cropping season. The Med-collection showed high frequency of resistance reactions, among which over 50% showed an immune reaction (HR) at both seedling and adult growth stages. Interestingly, 92% of HR and R accessions maintained their resistance levels across the two years, confirming the highly significant correlation found between seedling-and adult-stage reactions. Plant Height was found to have a negative significant effect on adult-stage resistance, suggesting that either this trait can influence disease severity, or that it can be due to environmental/epidemiological factors. Accessions from Italy showed the highest variability, while those from Portugal, Spain and Tunisia showed the highest levels of resistance at both growth stages, suggesting that the latter accessions may harbor novel QTLs effective for STB resistance. 2022 2023-01-04T10:21:43Z 2023-01-04T10:21:43Z Journal Article https://hdl.handle.net/10568/126540 en Open Access application/pdf MDPI Ben M’Barek, S., Laribi, M., Kouki, H., Castillo, D., Araar, C., Nefzaoui, M., Ammar, K., Saint-Pierre, C., & Yahyaoui, A. H. (2022). Phenotyping Mediterranean Durum Wheat Landraces for Resistance to Zymoseptoria tritici in Tunisia. Genes, 13(2), 355. https://doi.org/10.3390/genes13020355 |
| spellingShingle | agronomic characters hard wheat seedlings Ben M’Barek, Sarrah Laribi, Marwa Kouki, Hajer Castillo, Dalma Araar, Chayma Nefzaoui, Meriem Ammar, Karim Saint Pierre, Carolina Yahyaoui, Amor Hassine Phenotyping mediterranean durum wheat landraces for resistance to Zymoseptoria tritici in Tunisia |
| title | Phenotyping mediterranean durum wheat landraces for resistance to Zymoseptoria tritici in Tunisia |
| title_full | Phenotyping mediterranean durum wheat landraces for resistance to Zymoseptoria tritici in Tunisia |
| title_fullStr | Phenotyping mediterranean durum wheat landraces for resistance to Zymoseptoria tritici in Tunisia |
| title_full_unstemmed | Phenotyping mediterranean durum wheat landraces for resistance to Zymoseptoria tritici in Tunisia |
| title_short | Phenotyping mediterranean durum wheat landraces for resistance to Zymoseptoria tritici in Tunisia |
| title_sort | phenotyping mediterranean durum wheat landraces for resistance to zymoseptoria tritici in tunisia |
| topic | agronomic characters hard wheat seedlings |
| url | https://hdl.handle.net/10568/126540 |
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