G C A T T A C G G C A T genes Article Genetic Diversity, Population Structure, and Parentage Analysis of Croatian Grapevine Germplasm Maja Žulj Mihaljevi´c 1,* , Edi Maleti´c 2,3, Darko Preiner 2,3 , Goran Zduni´c 4, Marijan Bubola 5 , Eva Zyprian 6 and Ivan Peji´c 1,3 1 Department of Plant Breeding, Genetics and Biometrics, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia;
[email protected] 2 Department of Viticulture and Enology, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia;
[email protected] (E.M.);
[email protected] (D.P.) 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;
[email protected] 5 Institute of Agriculture and Tourism, Karla Huguesa 8, 52440 Poreˇc,Croatia;
[email protected] 6 JKI Institute for Grapevine Breeding Geilweilerhof, 76833 Siebeldingen, Germany;
[email protected] * Correspondence:
[email protected] Received: 29 May 2020; Accepted: 30 June 2020; Published: 2 July 2020 Abstract: 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.