Strategies for Olive (Olea europaea L.) Breeding: Cultivated Genetic Resources and Crossbreeding

Rallo, L.; Barranco, D.; Díez, Concepción M.; Rallo, Pilar; Suárez, María Paz; Trapero, Carlos; Pliego‐Alfaro, Fernando

doi:10.1007/978-3-319-91944-7_14

Cited by 44 publications

(69 citation statements)

References 262 publications

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“…After two sub-cultures on expression medium, all embryogenic calli were transferred to olive ECO medium to induce cyclic embryogenesis [30,51,52,79]. The formulation of the ECO medium is based on the formulation of modified olive medium for SE (OMe) [78] containing 1 4 OM macroelements, 1 4 MS microelements, 1 2 OM vitamins, 50 mg L −1 myo-inositol, 20 g L −1 sucrose, 550 mg L −1 l-glutamine, and supplemented with 0.5 µM 2iP, 0.44 µM 6-benzyladenine (BA), 0.23 µM IBA, 1 g L −1 casein hydrolysate and 0.42 mM cefotaxime (sterilized by filtration as proposed by Rugini and Caricato [34]). The culture medium was jelled with 2.5 g L −1 Sigma-Phytagel.…”

Section: Cyclic Embryogenesismentioning

confidence: 99%

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Somatic Embryogenesis from Mature Embryos of Olea europaea L. cv. ‘Galega Vulgar’ and Long-Term Management of Calli Morphogenic Capacity

Pires

Cardoso

Ribeiro

et al. 2020

Plants

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Several olive cultivars, characterized by high-quality olive oil show agronomical issues such as excessive vigor, high susceptibility to biotic and abiotic stresses, and low propagation ability. They are strong candidates for breeding based on new technologies to improve their performance in a short period of time. For this reason, the first step is developing efficient somatic embryogenesis (SE) protocols. Somatic embryogenesis in olive is highly genotype-dependent for both adult tissues and mature embryos as initial explants, requiring the development of specific protocols for each genotype. Trials using cotyledons and radicles as initial explants, isolated from ripe seeds from the Portuguese olive cv. ‘Galega vulgar’, gave more than 95% calli development. Radicles proved to be the most responsive tissue for SE induction, with an average of 2 embryos per callus after callus transfer to expression medium, and 14 embryos per callus after subculture on the olive cyclic embryogenesis medium (ECO). Embryogenic competence could be recovered after several subcultures on ECO medium that maintained cyclic embryogenesis for an indeterminate period of time. Embryo conversion and plant acclimatization were also attained with high success rates. Media management for cyclic embryogenesis maintenance is of general importance for SE protocols in any olive genotype. Somatic embryogenesis was thus attained for the first time in embryo-derived explants of cv. ‘Galega vulgar’.

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Section: Cyclic Embryogenesismentioning

confidence: 99%

“…Olive trees are one of the oldest and most economically relevant fruit trees and oilseed crops in the Mediterranean region, being most of the cultivars used for olive oil production [1]. Two olive forms can be found in the Mediterranean basin, the wild olive (Olea europaea L. ssp.…”

Section: Introductionmentioning

confidence: 99%

Somatic Embryogenesis from Mature Embryos of Olea europaea L. cv. ‘Galega Vulgar’ and Long-Term Management of Calli Morphogenic Capacity

Pires

Cardoso

Ribeiro

et al. 2020

Plants

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“…The species, which is relatively sensitive to cold but highly resistant to heat and drought, was probably domesticated in the Middle East and Central Mediterranean 5500 years B.P. (Rallo et al, 2018). Since then, it has played key roles in the history, economy, culture and environment of this region.…”

Section: Introductionmentioning

confidence: 99%

Heterologous Expression of the AtNPR1 Gene in Olive and Its Effects on Fungal Tolerance

et al. 2020

Self Cite

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“…The scientific approach to the study of floral biology in olives traces its roots back to the first decade of the 20th century with the research conducted primarily by Petri [8] and Campbell [9], nevertheless, most of the available studies were carried out on a small number of cultivars, in vastly different environments, and over a limited number of years [10,11,12,13,14,15,16,17,18,19,20,21]. As a result, the conflicting reports regarding the classification of pollen compatibility in some cultivars, as well as the contradictory results in different areas and years [22], do not allow for definitive conclusions to be drawn.…”

Section: Introductionmentioning

confidence: 99%

Uncovering Olive Biodiversity through Analysis of Floral and Fruiting Biology and Assessment of Genetic Diversity of 120 Italian Cultivars with Minor or Marginal Diffusion

Lombardo

Fila

Lombardo

et al. 2019

Biology

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The primary impetus behind this research was to provide a boost to the characterization of the Italian olive biodiversity by acquiring reliable and homogeneous data over the course of an eight-year trial on the floral and fruiting biology of 120 molecularly analyzed cultivars, most of which have either low or very low diffusion. The obtained data highlighted a considerable variability to almost all of the analyzed parameters, which given the uniformity of environment and crop management was indicative of a large genetic variability in the accessions under observation, as confirmed through the molecular analysis. Several cases of synonymy were reported for the first time, even among plants cultivated in different regions, whilst all of the varieties examined, with only one exception, showed very low percentages of self-fruit-set, indicating a need for the employment of suitable pollinator plants. Eventually, a fitted model allowed us to evaluate the clear effects of the thermal values on blossoming, particularly in the months of March and April, whereas the climatic conditions during the flowering time had only a modest effect on its duration.

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Strategies for Olive (Olea europaea L.) Breeding: Cultivated Genetic Resources and Crossbreeding

Cited by 44 publications

References 262 publications

Somatic Embryogenesis from Mature Embryos of Olea europaea L. cv. ‘Galega Vulgar’ and Long-Term Management of Calli Morphogenic Capacity

Somatic Embryogenesis from Mature Embryos of Olea europaea L. cv. ‘Galega Vulgar’ and Long-Term Management of Calli Morphogenic Capacity

Heterologous Expression of the AtNPR1 Gene in Olive and Its Effects on Fungal Tolerance

Uncovering Olive Biodiversity through Analysis of Floral and Fruiting Biology and Assessment of Genetic Diversity of 120 Italian Cultivars with Minor or Marginal Diffusion

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