New insights in the Spanish gene pool of olive (Olea europaea L.) preserved ex situ and in situ based on high-throughput molecular markers
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Author
Gómez-Gálvez, Francisco Jesús
Cano Rodríguez, Juan
Paz Compañ, Sergio
Ugarte Andreva, Javier
García Rubio, Javier Alfonso
Pinilla Aragón, Isis
Viñuales-Andreu, Javier
Casanova-Gascón, José
Satovic, Zlatko
Lorite, Ignacio Jesús
De la Rosa-Navarro, Raúl
Belaj, Angjelina
Publication date
2024-01-05ISSN
1664-462X
Abstract
In Spain, several local studies have highlighted the likely presence of
unknown olive cultivars distinct from the approximately 260 ones
previously described in the literature. Furthermore, recent advancements in
identification techniques have significantly enhanced in terms of efficacy and
precision. This scenario motivated a new nationwide prospecting effort
aimed at recovering and characterizing new cultivated germplasm using
high-throughput molecular markers. In the present study, the use of 96 ESTSNP markers allowed the identification of a considerable amount of new
material (173 new genotypes) coming from areas with low intensification of
production in different regions of Spain. As a result, the number of distinct
national genotypes documented in the World Olive Germplasm Bank of
IFAPA, Có rdoba (WOGBC-ESP046) increased to 427. Likewise, 65 and 24
new synonymy and homonymy cases were identified, respectively. This rise
in the number of different national cultivars allowed to deepen the
knowledge about the underlying genetic structure. The great genetic
variability of Spanish germplasm was confirmed, and a new hot spot of
diversity was identified in the northern regions of La Rioja and Aragon.
Analysis of the genetic structure showed a clear separation between the germplasm of southern and northern-northeastern Spain and indicated a
significantly higher level of admixture in the latter. Given the expansion of
modern olive cultivation with only a few cultivars, this cryptic germplasm is in
great danger of disappearing. This underlines the fact that maintaining as
many cultivars as possible will increase the genetic variability of the olive gene
pool to meet the future challenges of olive cultivation.
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
633 - Field crops and their production
Pages
12
Publisher
Frontiers Media
Is part of
Frontiers in Plant Science
Citation
Gómez-Gálvez, Francisco J., A. Ninot, Juan Cano Rodríguez, Sergio Paz Compañ, Javier Ugarte Andreva, Javier Alfonso García Rubio, Isis Pinilla Aragón, et al. 2024. “New Insights in the Spanish Gene Pool of Olive (Olea Europaea L.) Preserved Ex Situ and in Situ Based on High-Throughput Molecular Markers.” Frontiers in Plant Science 14: 1267601. doi:10.3389/fpls.2023.1267601.
Grant agreement number
FEADER/ / /EU/ /
INIA/Programa Estatal de I+D+I orientada a los retos de la sociedad/RFP2013-00005/ES/Conservación y ampliación del Banco de Germoplasma Mundial de Olivo del IFAPA Centro Alameda del Obispo de Córdoba, traslado y mantenimiento de su Colección de seguridad al Centro IFAPA Venta del Llano de Mengibar, Jaén/
INIA/Programa Estatal de I+D+I orientada a los retos de la sociedad/RFP2017-00007/ES/Conservación y ampliación del Banco de Germoplasma Mundial de Olivo del IFAPA Centro Alameda del Obispo de Córdoba, traslado y mantenimiento de su Colección de seguridad al Centro IFAPA Venta del Llano de Mengibar, Jaén/
Program
Fructicultura
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- ARTICLES CIENTÍFICS [2555]
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