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Título: | Racial characterization and genetic diversity of sunflower broomrape populations from Northern Spain |
Autor: | Malek, Jebri; Moral, Lidia del CSIC; Fernández-Escobar, J.; Pérez-Vich, Begoña CSIC ORCID ; Velasco Varo, Leonardo CSIC ORCID | Palabras clave: | Gene flow Orobanche cumana Parasitic weeds SSR markers Virulence |
Fecha de publicación: | 2017 | Editor: | Firenze University Press | Citación: | Phytopathologia Mediterranea 56(1): 70-76 (2017) | Resumen: | In Spain, sunflower broomrape (Orobanche cumana Wallr.) has been restricted to Cuenca province in Central Spain, and the Guadalquivir Valley in Southern Spain, that represent different gene pools of the species. This pathogenic plant has now spread to other areas such as Castilla y León region in Northern Spain. The racial status and genetic diversity were investigated in six populations of sunflower broomrape collected in several provinces of Castilla y León. Evaluation of virulence to a set of differential host genotypes classified three of the populations as race F, while the other three populations were classified as a race below F, probably race E. Genetic diversity analysis using a set of 20 SSR markers showed that the broomrape populations from new areas of Northern Spain are mainly derived from the Guadalquivir Valley gene pool. Introgression from the Cuenca gene pool was observed in one of the populations, in which the percentage of polymorphic loci was 31%, Shanon´s diversity index was 0.17, and the average number of pairwise differences was 1.69, compared to zero for the three parameters in the other five populations. The absence of race F individuals in the populations classified as race below F indicated that seed migration took place, probably before the generalized expansion of race F in the Guadalquivir Valley area, at the beginning of the 1990s. | Versión del editor: | http://doi.org/10.14601/Phytopathol_Mediterr-19163 | URI: | http://hdl.handle.net/10261/157201 | DOI: | 10.14601/Phytopathol_Mediterr-19163 | ISSN: | 0031-9465 | E-ISSN: | 1593-2095 |
Aparece en las colecciones: | (IAS) Artículos |
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