Fig. 1

Map of the four Croatian grapevine growing regions according to the Law on wine (2019): Croatian Uplands (CUP) + Slavonia and Croatian Danube (SLD) (Continental Croatia), Croatian Istria and Kvarner (ISK) + Dalmatia (DAL) (Coastal Croatia), and administrative districts (counties) of Croatia. Abbreviations represent the counties sampled for CPs characterisation as presented in the Table 1: VS/Vukovar-Srijem, OB/Osijek-Baranja, BP/Brod-Posavina, PS/Požega-Slavonia, VP/Virovitica-Podravina, KK/Koprivnica-Križevci, ME/Međimurje, VŽ/ Varaždin, KZ/Krapina-Zagorje, SM/Sisak-Moslavina, ZG/Zagreb, KA/Karlovac, IST/Istria, and ZD/Zadar. Abbreviations for counties where CPs positive samples are not found were omitted from the map. Map is generated by using the template map from https://d-maps.com/carte.php?num_car=5359&lang=en) (accessed on 24 May 2022)