Genetic diversity and genetic comparison of hazelnuts (<i>Corylus avellana</i>L.) of Kayseri province of Turkey to major accessions of Azerbaijan, Georgia, Italy, Spain, and Turkey

Köse, Murat; Gürcan, Kahraman

doi:10.17660/actahortic.2018.1226.13

Cited by 3 publications

(1 citation statement)

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“…In particular, single sequence repeats (SSRs) or microsatellites have long been the preferred class of molecular markers for genotyping vegetatively propagated crops for their ability to discriminate at any stage of development, based on SSR multiallelism, high polymorphism, cost-effectiveness, and high reproducibility [ 24 ]. 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 ].…”

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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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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