Assessment of Maternal Effects and Genetic Variability in Resistance to <i>Verticillium dahliae</i> in Olive Progenies
The use of genetic resistance is likely the most efficient, economically convenient and environmentally friendly control method for plant diseases, as well as a fundamental piece in an integrated management strategy. This is particularly important for woody crops affected by diseases in which mainly...
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MDPI AG
2021-07-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/10/8/1534 |
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| author | Pedro Valverde Caballero Carlos Trapero Ramírez Diego Barranco Navero Francisco J. López-Escudero Ana Gordon Bermúdez-Coronel Concepción Muñoz Díez |
| author_facet | Pedro Valverde Caballero Carlos Trapero Ramírez Diego Barranco Navero Francisco J. López-Escudero Ana Gordon Bermúdez-Coronel Concepción Muñoz Díez |
| author_sort | Pedro Valverde Caballero |
| collection | DOAJ |
| description | The use of genetic resistance is likely the most efficient, economically convenient and environmentally friendly control method for plant diseases, as well as a fundamental piece in an integrated management strategy. This is particularly important for woody crops affected by diseases in which mainly horizontal resistance mechanisms are operative, such as Verticillium wilt, caused by <i>Verticillium dahliae</i>. In this study, we analyzed the variability in resistance to Verticillium wilt of olive trees in progenies from five crosses: ‘Picual’ × ‘Frantoio’, ‘Arbosana’ × ‘Koroneiki’, ‘Sikitita’ × ‘Arbosana’, ‘Arbosana’ × ‘Frantoio’ and ‘Arbosana’ × ‘Arbequina’ and their respective reciprocal crosses. Additionally, seedlings of ‘Picual’ and ‘Frantoio’ in open pollination were used as controls. In October 2016 and 2018, the fruits were harvested, and seeds germinated. Six-week-old seedlings were inoculated by dipping their bare roots in a conidial suspension of <i>V. dahliae,</i> and disease progress in terms of symptom severity and mortality was evaluated weekly. Additionally, seedling growth was evaluated every two weeks. At the end of the experiment, no significant differences were found for any of the assessed parameters when reciprocal crosses were compared. These results suggest that there is no maternal or paternal effect in regard to the heritability of resistance. In addition, this study identifies the best crosses for obtaining the highest number of resistant genotypes, highlighting the importance of the selection of specific cultivars to optimize the breeding process. |
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| last_indexed | 2024-03-10T08:28:39Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
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| series | Plants |
| spelling | doaj.art-be126dfa67fd4cb39e54de9f304b1d3a2023-11-22T09:17:43ZengMDPI AGPlants2223-77472021-07-01108153410.3390/plants10081534Assessment of Maternal Effects and Genetic Variability in Resistance to <i>Verticillium dahliae</i> in Olive ProgeniesPedro Valverde Caballero0Carlos Trapero Ramírez1Diego Barranco Navero2Francisco J. López-Escudero3Ana Gordon Bermúdez-Coronel4Concepción Muñoz Díez5Excellence Unit ‘María de Maeztu’ 2020-23, Department of Agronomy, ETSIAM, University of Córdoba, 14071 Córdoba, SpainExcellence Unit ‘María de Maeztu’ 2020-23, Department of Agronomy, ETSIAM, University of Córdoba, 14071 Córdoba, SpainExcellence Unit ‘María de Maeztu’ 2020-23, Department of Agronomy, ETSIAM, University of Córdoba, 14071 Córdoba, SpainExcellence Unit ‘María de Maeztu’ 2020-23, Department of Agronomy, ETSIAM, University of Córdoba, 14071 Córdoba, SpainExcellence Unit ‘María de Maeztu’ 2020-23, Department of Agronomy, ETSIAM, University of Córdoba, 14071 Córdoba, SpainExcellence Unit ‘María de Maeztu’ 2020-23, Department of Agronomy, ETSIAM, University of Córdoba, 14071 Córdoba, SpainThe use of genetic resistance is likely the most efficient, economically convenient and environmentally friendly control method for plant diseases, as well as a fundamental piece in an integrated management strategy. This is particularly important for woody crops affected by diseases in which mainly horizontal resistance mechanisms are operative, such as Verticillium wilt, caused by <i>Verticillium dahliae</i>. In this study, we analyzed the variability in resistance to Verticillium wilt of olive trees in progenies from five crosses: ‘Picual’ × ‘Frantoio’, ‘Arbosana’ × ‘Koroneiki’, ‘Sikitita’ × ‘Arbosana’, ‘Arbosana’ × ‘Frantoio’ and ‘Arbosana’ × ‘Arbequina’ and their respective reciprocal crosses. Additionally, seedlings of ‘Picual’ and ‘Frantoio’ in open pollination were used as controls. In October 2016 and 2018, the fruits were harvested, and seeds germinated. Six-week-old seedlings were inoculated by dipping their bare roots in a conidial suspension of <i>V. dahliae,</i> and disease progress in terms of symptom severity and mortality was evaluated weekly. Additionally, seedling growth was evaluated every two weeks. At the end of the experiment, no significant differences were found for any of the assessed parameters when reciprocal crosses were compared. These results suggest that there is no maternal or paternal effect in regard to the heritability of resistance. In addition, this study identifies the best crosses for obtaining the highest number of resistant genotypes, highlighting the importance of the selection of specific cultivars to optimize the breeding process.https://www.mdpi.com/2223-7747/10/8/1534diseaseolive breedingreciprocal crossesresistance<i>Verticillium dahliae</i> |
| spellingShingle | Pedro Valverde Caballero Carlos Trapero Ramírez Diego Barranco Navero Francisco J. López-Escudero Ana Gordon Bermúdez-Coronel Concepción Muñoz Díez Assessment of Maternal Effects and Genetic Variability in Resistance to <i>Verticillium dahliae</i> in Olive Progenies Plants disease olive breeding reciprocal crosses resistance <i>Verticillium dahliae</i> |
| title | Assessment of Maternal Effects and Genetic Variability in Resistance to <i>Verticillium dahliae</i> in Olive Progenies |
| title_full | Assessment of Maternal Effects and Genetic Variability in Resistance to <i>Verticillium dahliae</i> in Olive Progenies |
| title_fullStr | Assessment of Maternal Effects and Genetic Variability in Resistance to <i>Verticillium dahliae</i> in Olive Progenies |
| title_full_unstemmed | Assessment of Maternal Effects and Genetic Variability in Resistance to <i>Verticillium dahliae</i> in Olive Progenies |
| title_short | Assessment of Maternal Effects and Genetic Variability in Resistance to <i>Verticillium dahliae</i> in Olive Progenies |
| title_sort | assessment of maternal effects and genetic variability in resistance to i verticillium dahliae i in olive progenies |
| topic | disease olive breeding reciprocal crosses resistance <i>Verticillium dahliae</i> |
| url | https://www.mdpi.com/2223-7747/10/8/1534 |
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