Olive genetic diversity assessed using amplified fragment length polymorphisms

Angiolillo, Antonella; Mencuccini, M.; Baldoni, Luciana

doi:10.1007/s001220051087

Cited by 244 publications

(206 citation statements)

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“…In several recent studies using dominant nuclear markers (eg RAPDs, AFLPs and ISSRs), a substantial, but not complete, discrimination was observed between cultivars from various geographical origins and oleasters from populations distributed over the Mediterranean Basin, each represented by a single individual tree, although no genetic marker was identified by the authors to discriminate unambiguously between wild oleasters and the putative feral forms (Angiolillo et al, 1999;Besnard et al, 2001a;Vargas and Kadereit, 2001;Bronzini de Caraffa et al, 2002a, b). Such results were observed even when the oleasters were collected in disturbed areas close to olive groves and were considered as being of feral origin (Angiolillo et al, 1999), and also in feral oleasters growing in Australia, where genuinely wild olive (in O. europaea) is not expected to grow (Mekuria et al, 2002). From the results of the present work, we suggest that the nuclear genetic differentiation observed between oleasters (whatever their origin) and cultivated olive may be attributable mostly to heterozygosity level differences and, very occasionally, to distinct allelic composition between these two fully interfertile partners of the same species.…”

Section: Geographic Allozyme Variation In Oleastersmentioning

confidence: 99%

“…In several previous studies, the nuclear genetic variation of oleasters was analysed over the Mediterranean Basin using RAPD markers (Besnard et al, 2001a, b) and, in more restricted areas, using RAPDs (Bronzini de Caraffa et al, 2002a, b), AFLPs (Angiolillo et al, 1999) and allozyme polymorphism (Lumaret et al, 1997;Lumaret and Ouazzani, 2001). When wide areas were sampled, a clear nuclear genetic differentiation was observed between oleasters from the eastern and western parts of the Mediterranean Basin.…”

Section: Introductionmentioning

confidence: 99%

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Allozyme variation of oleaster populations (wild olive tree) (Olea europaea L.) in the Mediterranean Basin

et al. 2004

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As a result of the early domestication and extensive cultivation of the olive tree throughout the Mediterranean Basin, the wild-looking forms of olive (oleasters) presently observed constitute a complex, potentially ranging from wild to feral forms. Allozyme variation was analysed at 10 loci in 31 large and 44 small oleaster populations distributed in various habitats of the Mediterranean Basin and in two populations of the wild subspecies Olea europaea subsp (ssp) guanchica, endemic to the Canary islands and closely related to oleasters. At eight polymorphic loci, 25 alleles were identified. Genetic evidence that nondomesticated oleasters still survive locally was provided by the occurrence of four and one alleles shared exclusively by the eight western and two eastern oleaster populations, respectively, which were collected in forests potentially containing genuinely wild forms according to environmental, historical and demographic criteria. As reported previously from cytoplasmic and RAPDs analysis, substantial genetic differentiation was observed between the eastern oleaster populations genetically close to most olive clones cultivated in the Mediterranean Basin, and the western populations that are related to the wild Canarian populations. In addition, the occurrence of significantly lower heterozygosity in cultivated olive than in oleasters, whatever their origin, suggests that intensive selection involving inbreeding has taken place under cultivation to obtain particular characteristics in the olive cultivars.

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Section: Geographic Allozyme Variation In Oleastersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Allozyme variation of oleaster populations (wild olive tree) (Olea europaea L.) in the Mediterranean Basin

et al. 2004

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“…Different molecular markers including RAPD markers have been used to study olive genetic diversity and cultivated olive identification [20][21][22][23] . Therefore, the present study was carried out to reveal brown olive intra-specific diversity present in the country and to verify the eventual occurrence of hybrids between these two subspecies by using morphological and RAPD markers.…”

Section: Introductionmentioning

confidence: 99%

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Sheidai¹,

Noormohammadi²,

Dehghani³

et al. 2010

ScienceAsia

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Brown olive thrives in diverse environmental conditions in Iran suggesting the possible occurrence of genetic diversity in these populations. Moreover in some regions, they occur close to cultivated olive suggesting the possibility of natural hybridization among them. The goal of the present study was to investigate these possibilities. Morphological and RAPD analyses were performed on 8 brown olive populations of Iran using 24 morphological characters. ANOVA test showed significant difference in leaf length and leaf width among different populations and PCA analysis showed that the leaf characteristics (venation, width, trichome, colour in the ventral and dorsal surfaces), number, and distribution of grooves in the endocarp and fruit characteristics (apex, base, and shape) are the most variable characters among the brown olive populations studied. The 38 RAPD primers used produced 541 reproducible bands (loci) out of which 515 bands were polymorphic and 26 bands were common in the populations studied. The Anveh population showed the highest level of polymorphic loci (78%) and the Jareh population showed the lowest value (28%). The highest mean genetic diversity and Shannon information indices occurred in the Anveh population (0.21 and 0.34, respectively) and the lowest values of the same occurred in the Jareh population (0.11 and 0.16, respectively), indicating the presence of a high genetic diversity among the populations studied. The Homag population showed the highest number of specific bands (8 bands). Both morphological and molecular analyses suggested the presence of intra-specific variations.

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“…europaea) is produced from the seedlings of wild form of olive (O. europaea L. var. sylvestris) by cutting or grafting (Green, 2002), where these two interfertile olive forms produce a large number of varieties with high levels of heterozygosity and genetic diversity among predominantly allogamus cultivars (Angiolillo et al, 1999;Diaz et al, 2006). This variability in olive cultivars makes the cultivar identification extremely difficult, which is actually crucial for the determination of olive productivity and oil quality, i.e., properties inherited to a variety (Fiorino and Rallo, 1999).…”

Section: Introductionmentioning

confidence: 99%

Using Two Retrotransposon Based Marker Systems (IRAP and REMAP) for Molecular Characterization of Olive (<i>Olea europaea</i> L.) Cultivars

Kaya

YILMAZ-GOKDOGAN

2016

Not Bot Horti Agrobo

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Olive (Olea europaea L.) is one of the most characteristic agricultural trees of the Mediterranean region and has a large number of cultivar diversity. Olive cultivar characterization is very important especially for the fruit productivity and olive oil quality. In the present study, 46 clones belonging to Turkey (eight cultivars, each having five clones) and Italy (two cultivars, each having three clones) were assessed for cultivar characterization via inter-retrotransposon amplified polymorphism (IRAP) and retrotransposon-microsatellite amplified polymorphism (REMAP) marker systems using 10 LTR and 10 ISSR primers. In total, 368 band profiles were obtained, 358 of which are polymorphic (97.28% polymorphism). The cultivars were segregated into three main groups, each group having several branches, where all the clones of each cultivar were belonging to the same main group. The only exception to that was the distribution of the clones of cultivar Yaglik, 'Yaglik 4' and 'Yaglik 5', into different main groups. IRAP and REMAP analysis showed a high level of genetic variability among the olive cultivars in this study and this marker systems would be useful tool for clonal selection programs.

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Olive genetic diversity assessed using amplified fragment length polymorphisms

Cited by 244 publications

References 19 publications

Allozyme variation of oleaster populations (wild olive tree) (Olea europaea L.) in the Mediterranean Basin

Allozyme variation of oleaster populations (wild olive tree) (Olea europaea L.) in the Mediterranean Basin

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Using Two Retrotransposon Based Marker Systems (IRAP and REMAP) for Molecular Characterization of Olive (<i>Olea europaea</i> L.) Cultivars

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