Sexual compatibility within and between olive cultivars

Shubiao, Wu; Collins, Graham; Sedgley, Margaret

doi:10.1080/14620316.2002.11511554

Cited by 61 publications

(54 citation statements)

References 22 publications

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“…Under the environmental conditions of this study, 'Frantoio' was self-incompatible (IPI0 0.00), which agrees with the findings of Wu et al (2002) and Mookerjee et al (2005), while it was previously recorded as self-compatible in Australia (Sharma et al 1976) and in some other countries (Fontanazza & Baldoni 1990;Fabbri et al 2004). 'Frantoio' (as a host) was also crossincompatible with 'Barnea' and 'Koroneiki' but partially compatible with 'Mission'.…”

Section: Discussionsupporting

confidence: 90%

“…This is at variance with and Wu et al (2002). 'Kalamata' has shown a high level of SI in South Australia (Wu et al 2002;Mookerjee et al 2005). This is in general agreement with the result of this study in both years when the number of pollen tubes in the lower style was used to assess incompatibility.…”

Section: Discussionsupporting

confidence: 90%

“…It may be that 7 days was not long enough for pollen tubes to reach the ovules in this cultivar, under the conditions of this study. This is at variance with and Wu et al (2002). 'Kalamata' has shown a high level of SI in South Australia (Wu et al 2002;Mookerjee et al 2005).…”

Section: Discussionmentioning

confidence: 87%

“…An interesting observation was that 0.3% of pistils (1/300) in 'Frantoio' had three pollen tubes in the lower style and carpels, which led to three fertilized ovules. Wu et al (2002) even found four pollen tubes in the lower style of 'Picual', but in general they recorded a maximum of two and most commonly zero or one pollen tube in the lower style.…”

Section: Discussionmentioning

confidence: 97%

“…The pistils were harvested 7 days after crossing (Wu et al 2002;, fixed using Carnoy's fluid (ethanol:chloroform:-glacial acetic acid, 6:3:1) for 24 h and stored in 70% ethanol for 30 min and then in 90% ethanol at 4 8C until use. Twenty fixed pistils per cross were hydrated via an ethanol series through 70%, 50% and 30% ethanol to MQ water (30 min for each ethanol dilution and 2 )30 min for MQ water), softened with 0.8 M NaOH for 6 h at room temperature, washed in running water overnight and stained with 0.1% aniline blue (Martin 1959) in alkaline phosphate buffer (pH 11.5) overnight at 4 8C.…”

Section: Methodsmentioning

confidence: 99%

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Sexual compatibility and floral biology of some olive cultivars

Seifi

Guerin

Kaiser

et al. 2011

New Zealand Journal of Crop and Horticultural Science

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Pollen tube observation was used to assess the self-and cross-incompatibility of the olive (Olea europaea L.) cultivars 'Frantoio', 'Koroneiki' and 'Kalamata'. The pistils were harvested 1 week after hand pollination and stained with 0.1% aniline blue. The styles and ovules were separated, mounted in 80% glycerol and observed under a fluorescence microscope. All the cultivars studied were self-incompatible. 'Frantoio' (as a host) was incompatible with 'Koroneiki' and 'Barnea' but partially compatible with 'Mission'. 'Koroneiki' (as a host) was incompatible with 'Barnea' but partially compatible with 'Frantoio' and 'Mission'. 'Kalamata' (as a host) was compatible with 'Barnea', incompatible with 'Mission' and 'Koroneiki' in 2004, but partially compatible with them in 2005. The effects of shoot orientation and inflorescence location on inflorescence characteristics were also studied. For each cultivar, inflorescence characteristics in three sections of shoots (top, middle and base) and four sides of the three selected trees (north, south, east and west) were recorded. The statistical analysis showed that basal inflorescences were shorter and with fewer flowers but with the same percentage of perfect flowers. Shoot orientation did not have any influence on these characteristics in any of the cultivars.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 97%

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

Sexual compatibility and floral biology of some olive cultivars

Seifi

Guerin

Kaiser

et al. 2011

New Zealand Journal of Crop and Horticultural Science

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Paternity tests support a diallelic self‐incompatibility system in a wild olive (Olea europaea subsp. laperrinei, Oleaceae)

Besnard

Cheptou

Debbaoui

et al. 2020

Ecology and Evolution

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Self‐incompatibility (SI) is the main mechanism that favors outcrossing in plants. By limiting compatible matings, SI interferes in fruit production and breeding of new cultivars. In the Oleeae tribe (Oleaceae), an unusual diallelic SI system (DSI) has been proposed for three distantly related species including the olive (Olea europaea), but empirical evidence has remained controversial for this latter. The olive domestication is a complex process with multiple origins. As a consequence, the mixing of S‐alleles from two distinct taxa, the possible artificial selection of self‐compatible mutants and the large phenological variation of blooming may constitute obstacles for deciphering SI in olive. Here, we investigate cross‐genotype compatibilities in the Saharan wild olive (O. e. subsp. laperrinei). As this taxon was geographically isolated for thousands of years, SI should not be affected by human selection. A population of 37 mature individuals maintained in a collection was investigated. Several embryos per mother were genotyped with microsatellites in order to identify compatible fathers that contributed to fertilization. While the pollination was limited by distance inside the collection, our results strongly support the DSI hypothesis, and all individuals were assigned to two incompatibility groups (G1 and G2). No self‐fertilization was observed in our conditions. In contrast, crosses between full or half siblings were frequent (ca. 45%), which is likely due to a nonrandom assortment of related trees in the collection. Finally, implications of our results for orchard management and the conservation of olive genetic resources are discussed.

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Early selection for oil quality components in olive breeding progenies

Rosa

Arias‐Calderón

Velasco³

et al. 2015

Euro J Lipid Sci & Tech

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Olive oil is highly valued for its nutritional quality mainly determined by its fatty acid composition together with the presence of several biologically active minor components. In olive breeding programs, these oil quality components are normally evaluated in the later stages of selection because oil extraction is not suitable for being performed in large seedling progenies with initial low yield. In the present work, we evaluate the ability of open pollinated progenies of 17 olive cultivars located in a large germplasm bank as a means of generate genetic variability for oil quality components directly measured in fruit. High degree of variability was found for most of the oil quality components analyzed, including some cases of transgressive segregation. Narrow‐sense heritability greatly varies among traits, being particularly high for sterol content. Lack of correlation among fruit traits previously reported and oil quality traits suggest the possibility of simultaneous breeding for most of them. In summary, open pollination of cultivars from a germplasm bank together with early evaluation directly in fruit seems to be a convenient strategy for breeding for oil quality traits on olive. Practical application: The evaluation of oil quality parameters directly on fruits here presented could be a convenient strategy to speed up olive breeding programs aimed at obtaining new olive varieties with olive oil of enhanced quality. Box and whisker plots for oil quality components evaluated in progenies from open pollination. Female genitors’ names are abbreviated: “Arbequina” (Arb), “Blanqueta” (Bla), “Canetera” (Can), “Changlot Real” (ChR), “Chorrúo Castro del Río” (CCR), “Empeltre” (Emp), “Hojiblanca” (Hoj), “Lechín de Granada” (LGr), “Lechín de Sevilla” (LSe), “Manzanilla del Piquito” (MPi), “Manzanilla de Sevilla” (MSe), “Morona” (Mor), “Ocal” (Oca), “Picudo” (Pdo), “Picual” (Pic), and two previous selection of our breeding program (Sel1 and Sel2). Progenies are shown in ascending order regarding the values of the Spanish cultivars used as parents (represented by stars).

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Sexual compatibility within and between olive cultivars

Cited by 61 publications

References 22 publications

Sexual compatibility and floral biology of some olive cultivars

Sexual compatibility and floral biology of some olive cultivars

Paternity tests support a diallelic self‐incompatibility system in a wild olive (Olea europaea subsp. laperrinei, Oleaceae)

Early selection for oil quality components in olive breeding progenies

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