tailieunhanh - Utilization of related wild species (Echinacea purpurea) for genetic enhancement of cultivated sunflower (Helianthus annuus L.)

This paper describes 2 advanced hybrid lines produced from an intergeneric cross between the cultivated sunflower inbred line 6650 and an accession of E. purpurea. The hybrid plants have successfully been grown in the field. | Turkish Journal of Agriculture and Forestry Research Article Turk J Agric For (2014) 38: 15-22 © TÜBİTAK doi: Utilization of related wild species (Echinacea purpurea) for genetic enhancement of cultivated sunflower (Helianthus annuus L.) Roumiana VASSILEVSKA-IVANOVA, Boris KRAPTCHEV*, Ira STANCHEVA, Maria GENEVA, Ivan ILIEV, Georgi GEORGIEV Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, Sofia, Bulgaria Received: Accepted: Published Online: Printed: Abstract: Helianthus annuus is one of the most important oil species, with a comparatively narrow genetic base. The development of new sunflower cultivars is the focus of many research and breeding programs. Intergeneric hybridization between H. annuus and Echinacea purpurea, a valuable medicinal plant, has not yet been utilized in cultivar development. This paper describes 2 advanced hybrid lines produced from an intergeneric cross between the cultivated sunflower inbred line 6650 and an accession of E. purpurea. The hybrid plants have successfully been grown in the field. The hybrids, showing expression of traits from both parental species, were intermediate between both parents for plant height, leaf shape, leaf color, floral characteristics, tocopherol content, and fatty acid profile. It could be postulated that the hybridization Helianthus × Echinacea offers opportunities for combining desirable traits that increase the variability of cultivated sunflower. Key words: Antioxidant content, cultivated sunflower, Echinacea purpurea, fatty acid, Helianthus annuus, wide hybridization 1. Introduction Wide hybridization, including both interspecific and intergeneric hybridization, is one of the most important strategies for creating variations in plant species since it has the potential to combine useful traits, . favorable morphology, disease resistance, and some .