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| Content Provider | Springer Nature Link |
|---|---|
| Author | Plich, Jarosław Tatarowska, Beata Lebecka, Renata Śliwka, Jadwiga Zimch Guzowska, Ewa Flis, Bogdan |
| Copyright Year | 2015 |
| Abstract | Potato cultivar Bzura bred in 1986 is one of the few European cultivars outstanding in high level of durable resistance to late blight, but its resistance has not been characterized. The presented study was aimed at clarifying bases of durable resistance in Bzura by testing its resistance and resistance in progeny individuals. In ten-year field experiment Bzura was significantly more resistant than mid-resistant standards Escort and Robijn, and only slightly less resistant than highly resistant Sárpo Mira. Bzura expressed also high resistance in detached leaflet tests when inoculated with specific isolates of Phytophthora infestans. It was found in Bzura progeny that this race-specific resistance segregated in 1:1 ratio and is governed by a major resistance gene R2-like. However, the long-lasting field resistance observed in Bzura could be explained by combination of R2-like gene and specific genetic background of this cultivar rather than by this gene exclusively.La variedad de papa Bzura, de 1986, es una de las pocas variedades europeas sobresalientes en alto nivel de resistencia durable al tizón tardío, pero no se ha caracterizado su resistencia. El presente estudio tuvo como propósito la clarificación de las bases de la resistencia durable en Bzura mediante la prueba de su resistencia y de la de individuos de su progenie. En experimentos de campo de diez años Bzura fue significativamente más resistente que las de resistencia media estándar Escort y Robijn, y solo ligeramente menos resistente que la altamente resistente Sárpo Mira. Bzura expresó también alta resistencia en pruebas de hoja separada cuando se le inoculó con aislamientos específicos de Phytophthora infestans. Se encontró en la progenie de Bzura que esta resistencia específica a razas segregó en una proporción de 1:1 y está gobernada por un gene mayor de resistencia tipo R2. No obstante, la resistencia durable de campo observada en Bzura pudiera explicarse por la combinación de un gene tipo R2 y un respaldo genético específico de esta variedad, en vez de este gene exclusivamente. |
| Starting Page | 350 |
| Ending Page | 358 |
| Page Count | 9 |
| File Format | |
| ISSN | 1099209X |
| Journal | American Potato Journal |
| Volume Number | 92 |
| Issue Number | 3 |
| e-ISSN | 18749380 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2015-02-13 |
| Publisher Institution | Potato Association of America |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Race-specific resistance Durability Detached leaflet assay Late blight Potato Plant Sciences Agriculture Plant Genetics & Genomics Plant Breeding/Biotechnology Plant Pathology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Plant Science Agronomy and Crop Science |
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