Comparison between classical and Bayesian methods to investigate the history of olive cultivars using SSR-polymorphisms

Breton, Catherine; Pinatel, Christian; Mèdail, Frédéric; Bonhomme, François; Bervillé, A.

doi:10.1016/j.plantsci.2008.05.025

Cited by 69 publications

(68 citation statements)

References 36 publications

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“…This large number of alleles per locus may have been influenced by the sampling strategy, as most cultivars and denominations were selected from diverse areas of cultivation. The mean number of alleles per locus observed in our study (A = 13.50) is similar to the value obtained from a Mediterranean variety collection (A = 14.50; Breton et al, 2008), using 12 DCA primers. Mean heterozygosity was high, indicating a wealth of genetic variation in the cultivar collection.…”

Section: Discussionsupporting

confidence: 88%

Molecular identification of Greek olive(Olea europaea) cultivars based on microsatellite loci

Roubos

Moustakas²,

Aravanopoulos

2010

Genet. Mol. Res.

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ABSTRACT.Olea europaea is one of the oldest species of domesticated trees. We used microsatellite markers for fingerprinting and for evaluation of genetic similarity and structure of 26 Greek olive cultivars, which cover most of the olive cultivation regions of Greece, including previously undescribed denominations from northern Greece. Eighty-one alleles were revealed with six SSR loci that were selected as most informative of 10 SSR primers that were initially investigated. The number of alleles per locus varied from 7 to 20 (mean, 13.5). Heterozygosity ranged from 0.240 at locus DCA-3 to 0.826 at locus UDO99-9, with a mean value of 0.600. Analysis of 104 trees representing 26 denominations (four trees per denomination) revealed 26 distinct SSR profiles, indicating 26 olive cultivars; no intracultivar variability was observed. Genetic and geographic distances were not significantly correlated, based on the Mantel test. These SSR loci allowed unequivocal identification of all the cultivars and will be useful for future breeding and olive germplasm management efforts.

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Section: Discussionsupporting

confidence: 88%

Molecular identification of Greek olive(Olea europaea) cultivars based on microsatellite loci

Roubos

Moustakas²,

Aravanopoulos

2010

Genet. Mol. Res.

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“…This model ensure that the incidence of each cultivar in the original population may be calculated (Breton et al 2008). The admixture model was applied and allele frequencies were assumed to be correlated.…”

Section: Statistical Analysesmentioning

confidence: 99%

Genetic and morphological characterization of chestnut (Castanea sativa Mill.) germplasm in Piedmont (north-western Italy)

Marinoni

Akkak

Beltramo

et al. 2013

Tree Genetics & Genomes

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Castanea sativa Mill. is an important multipurpose tree species for north-western Italy, and specially for Piedmont Region. The preservation of its germplasm from the genetic erosion due to the changes in socio-economic structure of rural areas and specific pathogen attacks is critical. The principal aims of this work were to characterize the chestnut germplasm grown in Piedmont and investigate its genetic structure. Sixty-eight grafted chestnut trees were evaluated using 10 SSRs (simple sequence repeats) loci and 20 morphological descriptors.Thirty-six different genotypes were identified; the analysis of the genetic structure of this germplasm revealed that four gene pools contributed to the formation of the population sampled . In general, cultivars tended to group into a main gene pool on the basis of their prevalent use and growing area. These results are substantially in agreement with those of the cluster analysis that was carried out to estimate the genetic relationships among the cultivars.Morphological analyses showed large variation of traits among the individuals, related with the market destination of the nuts and useful for cultivar and clonal selection. Discriminant analysis was applied to find a correlation between genetic and morphological data: nut and leaf shape, nut hairness and male flower type resulted to be the most discriminant traits associated with the genetic structure.In the end, this work clarified the genetic structure of the cultivated germplasm in Piedmont describing the main cultivars of the Region, giving useful information for conservation and breeding purposes.

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“…There have been several studies fruit trees, e.g., for grape (Lopes et al 2009;Zecca et al 2010) and olive (Breton et al 2008). One advantage of this method is that each individual is a unit of analysis, yet the method is based on the theory of population genetics.…”

Section: Advantage Of Bayesian Statistical Inferencementioning

confidence: 99%

Genetic structure of East Asian cultivated pears (Pyrus spp.) and their reclassification in accordance with the nomenclature of cultivated plants

et al. 2012

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By use of Bayesian statistical inference and allelic data for 18 microsatellite loci, we analyzed the genetic structure of Chinese, Korean, and Japanese pear cultivars and of native populations of Pyrus ussuriensis. Although Japanese pear cultivars had a simple genetic structure, Chinese and Korean pear cultivars were admixures of Japanese pear and native P. ussuriensis from the Asian continent. Genetic differentiation between groups of native populations and those of cultivars was high, but cultivars were not well differentiated from each other. Chinese and Korean cultivars, which have traditionally been classified as either P. ussuriensis, P. bretschneideri, or P. pyrifolia, were much closer to Japanese cultivars, which have traditionally been classified as P. pyrifolia, than to native P. ussuriensis. We propose a new classification of cultivars by using the Group concept in accordance with the International Nomenclature for Cultivated Plants, namely, the Pyrus Ussurian pear group, the Pyrus Chinese white pear group, the Pyrus Chinese sand pear group, and the Pyrus Japanese pear group.

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Comparison between classical and Bayesian methods to investigate the history of olive cultivars using SSR-polymorphisms

Cited by 69 publications

References 36 publications

Molecular identification of Greek olive(Olea europaea) cultivars based on microsatellite loci

Molecular identification of Greek olive(Olea europaea) cultivars based on microsatellite loci

Genetic and morphological characterization of chestnut (Castanea sativa Mill.) germplasm in Piedmont (north-western Italy)

Genetic structure of East Asian cultivated pears (Pyrus spp.) and their reclassification in accordance with the nomenclature of cultivated plants

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