Genetic variability in wild cardoon (Cynara cardunculus L. var. sylvestris) revealed by SSR markers and morphological traits

Ammar, Imen Ben; Sonnante, Gabriella; Dridi, Bouthaina Al Mohandes

doi:10.1016/j.scienta.2015.01.017

Cited by 10 publications

(11 citation statements)

References 13 publications

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“…A much lower number was found by Crinò and Pagnotta [ 61 ] analyzing a collection including only Romanesco artichoke accessions from Latium region (Italy). Conversely, the number of alleles found in our work was similar to that detected by Ben Ammar et al [ 19 ] in wild cardoon. This was also true when the globe artichoke and the leafy cardoon accessions were considered separately, even if, in these cases, the values were lower ( S3 and S4 Tables).…”

Section: Discussionsupporting

confidence: 92%

“…The average values for the F IS , F IT , and F ST were -0.66, 0.16, and 0.51, respectively ( Table 1 ). The variance of allele frequencies among accessions ( F ST ) detected here is higher than the average values found in wild cardoon [ 19 , 60 ] or in C . cardunculus [ 8 ].…”

Section: Discussioncontrasting

confidence: 76%

“…In addition, previous studies have demonstrated that the huge diversity within each botanical variety is quite often not related with the corresponding geographic origin (e.g. [ 15 – 19 ]). Considering all this, it is clear that the characterization of C .…”

Section: Introductionmentioning

confidence: 99%

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Genetic diversity and accession structure in European Cynara cardunculus collections

et al. 2017

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Understanding the distribution of genetic variations and accession structures is an important factor for managing genetic resources, but also for using proper germplasm in association map analyses and breeding programs. The globe artichoke is the fourth most important horticultural crop in Europe. Here, we report the results of a molecular analysis of a collection including globe artichoke and leafy cardoon germplasm present in the Italian, French and Spanish gene banks. The aims of this study were to: (i) assess the diversity present in European collections, (ii) determine the population structure, (iii) measure the genetic distance between accessions; (iv) cluster the accessions; (v) properly distinguish accessions present in the different national collections carrying the same name; and (vi) understand the diversity distribution in relation to the gene bank and the geographic origin of the germplasm. A total of 556 individuals grouped into 174 accessions of distinct typologies were analyzed by different types of molecular markers, i.e. dominant (ISSR and AFLP) and co-dominant (SSR). The data of the two crops (globe artichoke and leafy cardoon) were analyzed jointly and separately to compute, among other aims, the gene diversity, heterozygosity (He, Ho), fixation indexes, AMOVA, genetic distance and structure. The findings underline the huge diversity present in the analyzed material, and the existence of alleles that are able to discriminate among accessions. The accessions were clustered not only on the basis of their typology, but also on the basis of the gene bank they come from. Probably, the environmental conditions of the different field gene banks affected germplasm conservation. These outcomes will be useful in plant breeding to select accessions and to fingerprint varieties. Moreover, the results highlight the particular attention that should be paid to the method used to conserve the Cynara cardunculus germplasm and suggest to the preference of using accessions from different gene banks to run an association map.

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Section: Discussionsupporting

confidence: 92%

Section: Discussioncontrasting

confidence: 76%

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Genetic diversity and accession structure in European Cynara cardunculus collections

et al. 2017

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“…Efficiency of molecular markers, for population studies, is largely dependent upon their ability to detect levels of polymorphism. The mean number of alleles per locus observed in our study (N = 13.8) was higher than in prior studies of C. cardunculus [32,34,38,50]. According to Botstein et al [51] eight SSR loci were found to be highly informative (PIC > 0.5), with two others being moderately informative (0.5 > PIC > 0.25).…”

Section: Microsatellite Polymorphism and Genetic Diversity Of Cynara Cardunculuscontrasting

confidence: 83%

“…studies using nuclear microsatellites [34,38,50]. Our findings indicate that the SSR markers we used were sufficiently informative to suitably evaluate Portuguese C. cardunculus germplasm.…”

Section: Plos Onementioning

confidence: 70%

Genetic diversity and population structure of Cynara cardunculus L. in southern Portugal

et al. 2021

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Cynara cardunculus L. is a cardoon species native to the Mediterranean region, which is composed of three botanical taxa, each having distinct biological characteristics. The aim of this study was to examine wild populations of C. cardunculus established in Portugal, in order to determine their genetic diversity, geographic distribution, and population structure. Based on SSR markers, 121 individuals of C. cardunculus from 17 wild populations of the Portuguese Alentejo region were identified and analysed. Ten SSRs were found to be efficient markers in the genetic diversity analysis. The total number of alleles ranged from 9 to 17 per locus. The expected and observed means in heterozygosity, by population analysed, were 0.591 and 0.577, respectively. The wild population exhibited a high level of genetic diversity at the species level. The highest proportion of genetic variation was identified within a geographic group, while variation was lower among groups. Geographic areas having highest genetic diversity were identified in Alvito, Herdade da Abóboda, Herdade da Revilheira and Herdade de São Romão populations. Moreover, significant genetic differentiation existed between wild populations from North-Alentejo geographic locations (Arraiolos, Évora, Monte da Chaminé) and Centro Hortofrutícola, compared with other populations. This study reports genetic diversity among a representative number of wild populations and genotypes of C. cardunculus from Portugal. These results will provide valuable information towards future management of C. cardunculus germplasm.

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Molecular and morphological data reveals new insights into genetic diversity and population structure of Chinese cherry (Prunus pseudocerasus Lindl.) landraces

Chen

et al. 2018

Genet Resour Crop Evol

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Genetic variability in wild cardoon (Cynara cardunculus L. var. sylvestris) revealed by SSR markers and morphological traits

Cited by 10 publications

References 13 publications

Genetic diversity and accession structure in European Cynara cardunculus collections

Genetic diversity and accession structure in European Cynara cardunculus collections

Genetic diversity and population structure of Cynara cardunculus L. in southern Portugal

Molecular and morphological data reveals new insights into genetic diversity and population structure of Chinese cherry (Prunus pseudocerasus Lindl.) landraces

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