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Genetic Identity and Diversity of Apple Accessions within a Candidate Collection for the Norwegian National Clonal Germplasm Repository

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2022
Genetic_Identity_and_pub_2022.pdf (1.581Mb)
Authors
Meland, Mekjell
Aksic, Milica Fotiric
Frøynes, Oddmund
Konjic, Almira
Lasic, Lejla
Pojskic, Naris
Gasi, Fuad
Article (Published version)
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Abstract
In order to best conserve, as well as utilize, traditional apple germplasm in Norway, an apple heritage cultivar collection was established in Ullensvang, western Norway, which aims to become the National Clonal Germplasm Repository. The establishment of the apple heritage cultivar collection was preceded by a molecular study that aimed to genotype a large number of apple accessions maintained in various ex situ sites in western and south-eastern Norway, using a rather small set of eight SSR markers. However limited, the marker set managed to identify synonyms, homonyms, and duplicates within and among the investigated collections. In this study, 171 apple accessions from the Ullensvang apple heritage cultivar collection were genotyped using a set of 20 different SSR markers. Approximately half of the accessions have been previously genotyped using eight SSR markers, enabling an assessment of whether the use of a larger marker set would yield a more accurate characterization. Based on ...the obtained molecular data, the apple heritage cultivar collection was determined to hold a key part of the overall genetic diversity of the Norwegian apple germplasm. Furthermore, the twelve additional SSR markers were able to differentiate several accessions groups originally thought to be synonyms, as well as to provide a more detailed insight into the genetic structure of this germplasm. © 2022 by the authors.

Keywords:
genetic structure / heritage cultivars / SSR marker set
Source:
Horticulturae, 2022, 8, 7

DOI: 10.3390/horticulturae8070630

ISSN: 2311-7524

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URI
http://aspace.agrif.bg.ac.rs/handle/123456789/6169
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Poljoprivredni fakultet

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