Population structure analysis of European hazelnut (<i>Corylus avellana</i>)

Gürcan, Kahraman; Mehlenbacher, Shawn A.; Köse, Murat; Balık, Hüseyin İrfan

doi:10.17660/actahortic.2018.1226.12

Cited by 3 publications

(4 citation statements)

References 17 publications

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“…The study of genetic relationships among European hazelnut germplasm collections, according to their geographic origin, revealed that Italian and Iberian Peninsula genotypes clustered together [ 28 , 34 , 38 , 47 ]. More recently, the genetic structure of European hazelnut populations has been distinguishing seven main populations: Azerbaijan/Georgia, Central Anatolia, England, Italy, Spain, Black Sea, and Central Europe (Germany, Poland, Moscow) [ 41 ]. A closer phylogenetic relationship among all the cultivars from Western and Southern Europe, mostly from Spain and Italy, was then highlighted [ 71 ].…”

Section: Discussionmentioning

confidence: 99%

“…SSRs have been proven to be highly effective tools in assessing genetic diversity also in Corylus avellana L. [ 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 ]. By these molecular markers, hazelnut germplasm collections have been fingerprinted, defining synonymies and homonymies [ 34 , 35 , 36 ], assessing genetic relationships and parentage [ 37 , 38 , 39 , 40 , 41 ], investigating the genetic structure of different populations comparing local cultivars and wild genotypes [ 29 , 32 , 38 , 42 , 43 ], and developing genetic maps for association analysis [ 44 , 45 ]. More recently, single-nucleotide polymorphisms (SNPs) based on next-generation sequencing (NGS) have been utilized in hazelnut linkage maps [ 46 , 47 ] to assess the genetic diversity and to investigate the domestication history of European hazelnut [ 48 , 49 , 50 ].…”

Section: Introductionmentioning

confidence: 99%

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Diversity Assessment and DNA-Based Fingerprinting of Sicilian Hazelnut (Corylus avellana L.) Germplasm

Fiore

Marchese

Mauceri

et al. 2022

Plants

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The characterization of plant genetic resources is a precondition for genetic improvement and germplasm management. The increasing use of molecular markers for DNA-based genotype signature is crucial for variety identification and traceability in the food supply chain. We collected 75 Sicilian hazelnut accessions from private and public field collections, including widely grown varieties from the Nebrodi Mountains in north east Sicily (Italy). The germplasm was fingerprinted through nine standardized microsatellites (SSR) for hazelnut identification to evaluate the genetic diversity of the collected accessions, validating SSR discrimination power. We identified cases of homonymy and synonymy among acquisitions and the unique profiles. The genetic relationships illustrated by hierarchical clustering, structure, and discriminant analyses revealed a clear distinction between local and commercial varieties. The comparative genetic analysis also showed that the Nebrodi genotypes are significantly different from the Northern Italian, Iberian, and Turkish genotypes. These results highlight the need and urgency to preserve Nebrodi germplasm as a useful and valuable source for traits of interest employable for breeding. Our study demonstrates the usefulness of molecular marker analysis to select a reference germplasm collection of Sicilian hazelnut varieties and to implement certified plants’ production in the supply chain.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Diversity Assessment and DNA-Based Fingerprinting of Sicilian Hazelnut (Corylus avellana L.) Germplasm

Fiore

Marchese

Mauceri

et al. 2022

Plants

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“…Indeed, for such outcrossing and wind‐pollinated plants, a continuum of populations from wild to domesticated is a likely result of the domestication process (Miller & Gross, 2011). At a fine‐scale resolution within broad domestication centres, the population structure analysis of Gurcan et al (2018) on simple sequence repeats (SSRs) concluded that cultivated C. avellana consist of multiple genetic groups, and cultivars were likely selected from local wild populations rather than originating in one or two domestication centres. There does appear to be some geographical population structuring of C. avellana across its European range, however, and microsatellite markers in Italy and the Balkans were found to contrast those of other areas (Palmé & Vendramin, 2002).…”

Section: Historymentioning

confidence: 99%

Biological Flora of Britain and Ireland:Corylus avellana

Hicks¹

2022

Journal of Ecology

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This account presents information on all aspects of the biology of Corylus avellana L. (Hazel) that are relevant to understanding its ecological characteristics and behaviour. The main topics are presented within the standard framework of the Biological Flora of Britain and Ireland: distribution, habitat, communities, responses to biotic factors, responses to environment, structure and physiology, phenology, floral and seed characters, herbivores and disease, history and conservation. Wild C. avellana in Britain and Ireland grows in a wide climatic and ecological range, in a broad suite of vegetation communities, particularly woodlands, at all latitudes and from 0 to 650 m asl. It supports a large number of faunal and fungal associates. The developing plant sends up basal shoots every spring from the peripheral parts of its underground stool, which gives it a structural regenerative advantage over cohabitant woody species. The flowers and pollen of C. avellana are adapted for wind pollination, yet honeybees have been observed to gather its pollen. The pollen and fruit of C. avellana are a cause of allergic reactions in sensitive people, with previous exposure to Birch pollen a strong predictor of the food allergy. Corylus avellana is native to Europe and western Asia, and was one of the first plant species to recolonize Europe after the last gIacial period. By the time of its cultivation in the Roman empire, regional human‐selected lineages of C. avellana were already developing, with independent domestication in the western and eastern Mediterranean. Corylus avellana is a genetically diverse taxon with effective gene flow across populations, presenting a continuum of wild to domesticated plants. Its nuts and involucres show a wide morphological variability, with hundreds of cultivars and forms proposed. The taxon Corylus maxima Mill. is sympatric and fully fertile with C. avellana, yet rarely self‐sown and their hybrid is little recorded in Britain and Ireland. Independent molecular studies have concluded that specimens of C. maxima cluster with C. avellana. Hazelnuts are globally one of the most important nut crops, currently with 70% of traded nuts being grown in Türkiye, followed by Italy and Azerbaijan.

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“…Mehlenbacher [17] described 400 selected cultivars from various countries and often, cultivars with different names have identical genotype markers, which leads to confusion and incorrect cultivar labeling during the production process. Gürcan et al [18] suggested that the genetic structure population of European hazelnut consists of seven main populations: Azerbaijan/Georgia, Central Anatolia, England, Italy, Spain, Black Sea, and Central Europe (Germany, Poland, Moscow) based on the study of 582 accessions indicating diversity between clusters. In addition to the genotype, agricultural techniques, postharvest management, and orchard location all affect the morphological, physical, and chemical characteristics of hazelnuts, leading to preferred varieties in each growing area [19,20].…”

Section: Introductionmentioning

confidence: 99%

Morphological Traits and Chemical Composition of Hazelnut from Different Geographical Origins: A Review

Król

Gantner

2020

Agriculture

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Hazelnut (Corylus avellana L.) is a popular tree nut worldwide, and in recent years, the production of hazelnuts has increased in many countries due to large investments improving agricultural techniques and the selection of new cultivars. Turkey, the leader of global hazelnut production, has shown that supply can strongly fluctuate, which leads to peak prices and market instability. In this review, an overview of the morphological traits, nutritional value, fatty acid composition, tocopherols, and future prospects of hazelnut production are described. Furthermore, information regarding hazelnuts from different geographical origins (Chile, Croatia, Iran, Italy, Oregon (US), Poland, Portugal, Serbia, Spain, and Turkey; total of 22 cultivars) to enhance the utilization of hazelnut cultivars from newly producing orchards and origins is comprehensively summarized.

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Population structure analysis of European hazelnut (Corylus avellana)

Cited by 3 publications

References 17 publications

Diversity Assessment and DNA-Based Fingerprinting of Sicilian Hazelnut (Corylus avellana L.) Germplasm

Diversity Assessment and DNA-Based Fingerprinting of Sicilian Hazelnut (Corylus avellana L.) Germplasm

Biological Flora of Britain and Ireland:Corylus avellana

Morphological Traits and Chemical Composition of Hazelnut from Different Geographical Origins: A Review

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