Inheritance of resistance to Pepper yellow mosaic virus in Capsicum baccatum var. pendulum
| Autor: | Rosana Rodrigues, Cláudia Pombo Sudré, Marilene Hilma dos Santos, H S Oliveira, Leandro Simões Azeredo Gonçalves, Cíntia dos Santos Bento, M C Pontes |
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| Rok vydání: | 2013 |
| Předmět: |
biology
Models Genetic Inoculation Inheritance (genetic algorithm) food and beverages General Medicine Heritability Plant disease resistance biology.organism_classification Capsicum baccatum Horticulture Mosaic Viruses Plant virus Botany Genetics Epistasis Cultivar Selection Genetic Capsicum Molecular Biology Crosses Genetic Disease Resistance Plant Diseases |
| Zdroj: | Genetics and molecular research : GMR. 12(2) |
| ISSN: | 1676-5680 |
| Popis: | We investigated inheritance of resistance to Pepper yellow mosaic virus (PepYMV) in Capsicum baccatum var. pendulum accessions UENF 1616 (susceptible) crossed with UENF 1732 (resistant). Plants from generations P1, P2, F1, F2, BC1:1, and BC1:2 were inoculated and the symptoms were evaluated for 25 days. Subsequently, an area under the disease progress curve was calculated and subjected to generation means analysis. Only the average and epistatic effects were significant. The broad and narrow sense heritability estimates were 35.52 and 21.79%, respectively. The estimate of the minimum number of genes that control resistance was 7, indicating that resistance is polygenic and complex. Thus, methods to produce segregant populations that advocate selection in more advanced generations would be the most appropriate to produce chili pepper cultivars resistant to PepYMV. |
| Databáze: | OpenAIRE |
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