Unlocking hidden sources of resistance to ascochyta blight in moderately resistant chickpea genotypes
Ascochyta blight, caused by Ascochyta rabiei, is a major threat to global chickpea (Cicer arietinum L.) production, significantly reducing yield under favorable conditions. This study aimed to characterize the resistance responses of nine chickpea genotypes, previously classified as moderately resis...
| Autores principales: | , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2025
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/23020 https://link.springer.com/article/10.1007/s10681-025-03557-w https://doi.org/10.1007/s10681-025-03557-w |
| _version_ | 1855038682179829760 |
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| author | Crociara, Clara Sonia Valetti, Lucio Castro, Patricia Millán, Teresa Iglesias, Juliana Pastor, Silvina Estela |
| author_browse | Castro, Patricia Crociara, Clara Sonia Iglesias, Juliana Millán, Teresa Pastor, Silvina Estela Valetti, Lucio |
| author_facet | Crociara, Clara Sonia Valetti, Lucio Castro, Patricia Millán, Teresa Iglesias, Juliana Pastor, Silvina Estela |
| author_sort | Crociara, Clara Sonia |
| collection | INTA Digital |
| description | Ascochyta blight, caused by Ascochyta rabiei, is a major threat to global chickpea (Cicer arietinum L.) production, significantly reducing yield under favorable conditions. This study aimed to characterize the resistance responses of nine chickpea genotypes, previously classified as moderately resistant, by subjecting them to enhanced disease pressure. Phenotypic evaluation, including the area under the disease progress curve (AUDPC) and severity scoring was carried out. To investigate the potential genetic basis of the observed resistance response, we analyzed molecular markers previously reported as linked to quantitative trait loci (QTLs) for A. rabiei resistance. The approach focused on testing whether these established markers could distinguish genotypes following the same patterns observed in their phenotypic responses under increased pathogen pressure. The results revealed significant variability among the MR genotypes, with three genotypes FLIP06-86C, FLIP07-35C, and FLIP03-100C outperforming the resistant control. The results from hierarchical clustering (UPGMA), principal component analysis (PCA), and principal coordinate analysis (PCoA) highlighted genetic substructures consistent with observed phenotypic behaviors. However, unexpected marker-phenotype associations were detected, questioning the utility of specific markers such as SCY17 and CaETR4 in marker-assisted selection. These findings underline the complexity of polygenic resistance to A. rabiei and emphasize the importance of integrating phenotypic screening with genetic analyses to improve the reliability of chickpea breeding programs. This work also contributes to identifying superior MR genotypes, providing valuable resources for the development of resistant cultivars. |
| format | info:ar-repo/semantics/artículo |
| id | INTA23020 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA230202025-07-15T10:32:33Z Unlocking hidden sources of resistance to ascochyta blight in moderately resistant chickpea genotypes Crociara, Clara Sonia Valetti, Lucio Castro, Patricia Millán, Teresa Iglesias, Juliana Pastor, Silvina Estela Ascochyta rabiei Garbanzo Tizón del garbanzo Chickpea blight Mejoramiento Genético Chickpeas Genetic Improvement Molecular Markers Pulse Breeding Rabia del Garbanzo Ascochyta blight, caused by Ascochyta rabiei, is a major threat to global chickpea (Cicer arietinum L.) production, significantly reducing yield under favorable conditions. This study aimed to characterize the resistance responses of nine chickpea genotypes, previously classified as moderately resistant, by subjecting them to enhanced disease pressure. Phenotypic evaluation, including the area under the disease progress curve (AUDPC) and severity scoring was carried out. To investigate the potential genetic basis of the observed resistance response, we analyzed molecular markers previously reported as linked to quantitative trait loci (QTLs) for A. rabiei resistance. The approach focused on testing whether these established markers could distinguish genotypes following the same patterns observed in their phenotypic responses under increased pathogen pressure. The results revealed significant variability among the MR genotypes, with three genotypes FLIP06-86C, FLIP07-35C, and FLIP03-100C outperforming the resistant control. The results from hierarchical clustering (UPGMA), principal component analysis (PCA), and principal coordinate analysis (PCoA) highlighted genetic substructures consistent with observed phenotypic behaviors. However, unexpected marker-phenotype associations were detected, questioning the utility of specific markers such as SCY17 and CaETR4 in marker-assisted selection. These findings underline the complexity of polygenic resistance to A. rabiei and emphasize the importance of integrating phenotypic screening with genetic analyses to improve the reliability of chickpea breeding programs. This work also contributes to identifying superior MR genotypes, providing valuable resources for the development of resistant cultivars. Instituto de Patología Vegetal Fil: Crociara, Clara Sonia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina Fil: Crociara, Clara Sonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFyMA); Argentina Fil: Valetti, Lucio. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina Fil: Valetti, Lucio. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFyMA); Argentina Fil: Castro, Patricia. Universidad de Córdoba (UCO); España Fil: Millán, Teresa. Universidad de Córdoba (UCO); España Fil: Iglesias, Juliana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Pergamino; Argentina Fil: Iglesias, Juliana.Universidad Nacional del Noroeste de la Provincia de Buenos Aires (UNNOBA), Pergamino; Argentina Fil: Pastor, Silvina Estela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina Fil: Pastor, Silvina Estela. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFyMA); Argentina 2025-07-15T10:19:59Z 2025-07-15T10:19:59Z 2025-05-25 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/23020 https://link.springer.com/article/10.1007/s10681-025-03557-w 0014-2336 1573-5060 (online) https://doi.org/10.1007/s10681-025-03557-w eng info:eu-repograntAgreement/INTA/2019-PE-E6-I132-001, Desarrollo de legumbres adaptadas a los territorios y diferenciados por calidad comercial, nutricional e industrial info:eu-repo/semantics/reference/hdl/20.500.12123/21430 info:eu-repo/semantics/reference/hdl/20.500.12123/21433 info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Springer Euphytica 221 : 108 (June 2025) |
| spellingShingle | Ascochyta rabiei Garbanzo Tizón del garbanzo Chickpea blight Mejoramiento Genético Chickpeas Genetic Improvement Molecular Markers Pulse Breeding Rabia del Garbanzo Crociara, Clara Sonia Valetti, Lucio Castro, Patricia Millán, Teresa Iglesias, Juliana Pastor, Silvina Estela Unlocking hidden sources of resistance to ascochyta blight in moderately resistant chickpea genotypes |
| title | Unlocking hidden sources of resistance to ascochyta blight in moderately resistant chickpea genotypes |
| title_full | Unlocking hidden sources of resistance to ascochyta blight in moderately resistant chickpea genotypes |
| title_fullStr | Unlocking hidden sources of resistance to ascochyta blight in moderately resistant chickpea genotypes |
| title_full_unstemmed | Unlocking hidden sources of resistance to ascochyta blight in moderately resistant chickpea genotypes |
| title_short | Unlocking hidden sources of resistance to ascochyta blight in moderately resistant chickpea genotypes |
| title_sort | unlocking hidden sources of resistance to ascochyta blight in moderately resistant chickpea genotypes |
| topic | Ascochyta rabiei Garbanzo Tizón del garbanzo Chickpea blight Mejoramiento Genético Chickpeas Genetic Improvement Molecular Markers Pulse Breeding Rabia del Garbanzo |
| url | http://hdl.handle.net/20.500.12123/23020 https://link.springer.com/article/10.1007/s10681-025-03557-w https://doi.org/10.1007/s10681-025-03557-w |
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