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  3. Molecular characterization and identification of olive genotypes (Olea eu-ropaea L.) from the NW region of the province of Córdoba, Argentina and determination of the intravarietal diversity of genotypes associated with the reference cultivars Arauco, Manzanilla and Arbequina

Molecular characterization and identification of olive genotypes (Olea eu-ropaea L.) from the NW region of the province of Córdoba, Argentina and determination of the intravarietal diversity of genotypes associated with the reference cultivars Arauco, Manzanilla and Arbequina

Caracterización molecular e identificación de genotipos de olivo (Olea europaea L.) de la región NO de la provincia de Córdoba, Argentina y determinación de la diversidad intravarietal de genotipos asociados a los cultivares de referencia Arauco, Manzanilla y Arbequina

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DOI
10.48620/87095
Official URL
https://revistas.unc.edu.ar/index.php/agris/article/view/43200
Publisher DOI
10.31047/1668.298x.v41.n2.43200
Abstract
Córdoba (Argentina) has 4,484 ha dedicated to olive cultivation. The orchards established in the last century were characterized by low planting density and heterogeneous varietal constitution with dubious names. To solve this problem, it is possible to use genetic markers that allow materials to be characterized and identified. The objectives of the work were: to characterize and identify, using microsatellites, local olive genotypes from the Department of Cruz del Eje and to determine the intravarietal diversity of plants called Arbequina, Arauco and Manzanilla varieties. Olive plants, selected for yield, fruit quality and/or good response to biotic and abiotic stress, were analyzed together with accessions from the Olive Collection of INTA Junín (Mendoza, Argentina) and the World Germplasm Bank (Córdoba, Spain) with known identity. The diversity of genotypes associated with the reference cultivars was determined with seventeen microsatellites. Six local genotypes were identified. The most polymorphic microsatellites were Gapu 103A and UDO43 and the least informative Gapu 71B and EMO 90. The Gapu 71B microsatellite differentiated Nevadillo Negro from the rest of the materials. The genotype called “Arauco Olly” presented the same genetic profile as the “Arauco Centenario” cultivar and the genotype locally called “21 Kg” was identified.
Córdoba (Argentina) cuenta con 4.484 ha dedicadas al cultivo del olivo. Las huertas establecidas en el siglo pasado se caracterizaron por baja densidad de plantación y una constitución varietal heterogénea con nombres inciertos. Para solucionar este problema, es posible utilizar marcadores genéticos que permitan caracterizar e identificar materiales. Los objetivos del trabajo fueron: caracterizar e identificar, mediante microsatélites, genotipos locales de olivo del Departamento de Cruz del Eje y determinar la diversidad intravarietal de plantas denominadas variedades Arbequina, Arauco y Manzanilla. Se analizaron plantas de olivo, seleccionadas por rendimiento, calidad de fruto y/o buena respuesta a estreses bióticos y abióticos, junto con accesiones de la Colección de Olivo del INTA Junín (Mendoza, Argentina) y del Banco Mundial de Germoplasma (Córdoba, España), de identidad conocida. La diversidad de genotipos asociados a los cultivares de referencia se determinó con diecisiete microsatélites. Se identificaron seis genotipos locales. Los microsatélites más polimórficos fueron Gapu 103A y UDO43 y los menos informativos Gapu 71B y EMO 90. El microsatélite Gapu 71B diferenció a Nevadillo Negro del resto de materiales. El genotipo denominado “Arauco Olly” presentó el mismo perfil genético que el cultivar “Arauco Centenario” y se identificó el genotipo denominado localmente “21 Kg”.
Date Issued
2024-02
Publication Type
Article
Subjects
genetic markers
•
microsatellites
•
genetic diversity
Language(s)
en
es
Author(s)
Costero, Beatriz
Teich, Ingrid  
Centre for Development and Environment (CDE) - Sustainable Land Systems  
Taborda, Ricardo Jorge
Torres, Laura
Additional Credits
Centre for Development and Environment (CDE) - Sustainable Land Systems  
Centre for Development and Environment (CDE)  
Journal
AgriScientia
Publisher
Universidad Nacional de Córdoba
ISSN
1668-298X
0327-6244
Project(s)
World Overview of Conservation Approaches and Technologies  
Access(Rights)
open.access
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