Publications by authors named "Belen Fernandez-Melero"
Article Synopsis
- Sunflower broomrape (Orobanche cumana) is a parasitic plant harming sunflower crops in Europe and Asia, with a new virulent population identified in Southern Spain that can overcome existing resistance in sunflower hybrids.
- The study involved analyzing 144 families from a cross between different populations of O. cumana and showed a 1:3 ratio of avirulent to virulent plants, suggesting that the trait is controlled by a single gene, mapped to chromosome 2.
- This research is the first to map an avirulence gene in a parasitic plant, confirming a gene-for-gene relationship between O. cumana and sunflowers and revealing how the presence of this gene affects the population structure of the parasite
A new Or gene introgressed in cultivated sunflower from wild Helianthus anomalus confers late post-attachment resistance to Orobanche cumana race G and maps to a target interval in Chromosome 4 where two receptor-like kinases (RLKs) have been identified in the H. anomalus genome as putative candidates. Sunflower broomrape is a parasitic weed that infects sunflower (Helianthus annuus L.
View Article and Find Full Text PDFIntroduction: The sunflower broomrape ( Wallr.) gene pools of the Guadalquivir Valley and Cuenca province in Spain had predominantly race-F virulence. A new race G was observed recently in the Guadalquivir Valley potentially due to the genetic recombination of the avirulence genes of both gene pools.
View Article and Find Full Text PDF