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Article

Genetic Diversity, Population Structure, and Parentage Analysis of Croatian Grapevine Germplasm

1
Department of Plant Breeding, Genetics and Biometrics, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia
2
Department of Viticulture and Enology, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia
3
Centre of Excellence for Biodiversity and Molecular Plant Breeding (CoE CroP-BioDiv), Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia
4
Institute for Adriatic Crops and Karst Reclamation, Put Duilova 11, 21000 Split, Croatia
5
Institute of Agriculture and Tourism, Karla Huguesa 8, 52440 Poreč, Croatia
6
JKI Institute for Grapevine Breeding Geilweilerhof, 76833 Siebeldingen, Germany
*
Author to whom correspondence should be addressed.
Genes 2020, 11(7), 737; https://doi.org/10.3390/genes11070737
Received: 29 May 2020 / Revised: 25 June 2020 / Accepted: 30 June 2020 / Published: 2 July 2020
(This article belongs to the Special Issue Genetics and Diversity of Grapevine)
Croatian viticulture was most extensive at the beginning of the 20th century, when about 400 varieties were in use. Autochthonous varieties are the result of spontaneous hybridization from the pre-phylloxera era and are still cultivated today on about 35 % of vineyard area, while some exist only in repositories. We present what is the most comprehensive genetic analysis of all major Croatian national repositories, with a large number of microsatellite, or simple sequence repeat (SSR) markers, and it is also the first study to apply single nucleotide polymorphism (SNP) markers. After 212 accessions were fingerprinted, 95 were classified as unique to Croatian germplasm. Genetic diversity of Croatian germplasm is rather high considering its size. SNP markers proved useful for fingerprinting but less informative and practical than SSRs. Analysis of the genetic structure showed that Croatian germplasm is predominantly part of the Balkan grape gene pool. A high number of admixed varieties and synonyms is a consequence of complex pedigrees and migrations. Parentage analysis confirmed 24 full parentages, as well as 113 half-kinships. Unexpectedly, several key genitors could not be detected within the present Croatian germplasm. The low number of reconstructed parentages (19%) points to severe genetic erosion and stresses the importance of germplasm repositories. View Full-Text
Keywords: grapevine; Croatia; genetic diversity; genetic structure; parentage; synonyms; SSR; SNP grapevine; Croatia; genetic diversity; genetic structure; parentage; synonyms; SSR; SNP
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MDPI and ACS Style

Žulj Mihaljević, M.; Maletić, E.; Preiner, D.; Zdunić, G.; Bubola, M.; Zyprian, E.; Pejić, I. Genetic Diversity, Population Structure, and Parentage Analysis of Croatian Grapevine Germplasm. Genes 2020, 11, 737. https://doi.org/10.3390/genes11070737

AMA Style

Žulj Mihaljević M, Maletić E, Preiner D, Zdunić G, Bubola M, Zyprian E, Pejić I. Genetic Diversity, Population Structure, and Parentage Analysis of Croatian Grapevine Germplasm. Genes. 2020; 11(7):737. https://doi.org/10.3390/genes11070737

Chicago/Turabian Style

Žulj Mihaljević, Maja; Maletić, Edi; Preiner, Darko; Zdunić, Goran; Bubola, Marijan; Zyprian, Eva; Pejić, Ivan. 2020. "Genetic Diversity, Population Structure, and Parentage Analysis of Croatian Grapevine Germplasm" Genes 11, no. 7: 737. https://doi.org/10.3390/genes11070737

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