Intravarietal diversity of Manzanilla Olive cultivar (Oleaeuropaea L.) and selected related genotypes from the INTA, Catamarca collection and Cruz del Eje, Córdoba farms, Argentina

The olive tree (Olea europaea L.) presents a  complex of varieties that have not been fully  characterized and identified yet. In this work,  material with uncertain identity was analized: six  loci SSRs (simple sequence repeats) of thirteen  accessions related to the Manzanilla cultivar from  the INTA Catamarca collection and of two commercial genotypes from orchards of Cruz del  Eje, Córdoba. To confirm the identity of cultivars  and the predominant genetic base of the selected  genotypes, their allelic profiles were compared with nine cultivars from INTA Mendoza and from  the BMGO (Córdoba, Spain) as well as with  reference data from the OLEA databases. With the  allelic frequency data obtained, a genetic  distance matrix was generated, which made it possible to estimate diversity parameters and  perform multivariate ordination and clustering  analysis. The predominant genetic base of native  genotypes was characterized and a high level of  heterozygosity was found. In addition, the identity  of the Carmona accession and of two  allelic variants (Imperial and 4So.CE) was verified possible synonymy for cvs. Israeli and Fina, and homonymy for cv. Spanish accessions were detected. These results contribute to the valorization and efficient use of olive tree genetic  resources. 

• Main Authors: Costero, Beatriz, Teich, I., Taborda, R. J., Toro, A., Prenol, L., Torres, L.
• Format: Online
• Language: spa
• Published: Facultad de Ciencias Agropecuarias 2021
• Subjects: genetic characterization; microsatellite markers; homonymy; synonymy; genetic resources; caracterización genética; microsatélites; homonimias; sinonimias; recursos genéticos
• Online Access: https://revistas.unc.edu.ar/index.php/agris/article/view/30288