1. Dynamic and static ex situ conservation : minimum requirements, data standards and indicators for monitoringJan-Peter George, Colin Kelleher, Aurore Desgroux, Eléonore Scholzen, Luis Muheim, Gregor Božič, Michele Bozzano, Anna-Maria Farsakoglou, 2026, professional monograph Keywords: ex situ conservation, forest genetic resources, genetic conservation units, gene banks, biodiversity monitoring
Published in DiRROS: 13.07.2026; Views: 235; Downloads: 135
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2. Raziskave preživetja, ranljivosti in s fitnesom povezanih lastnosti provenienc navadne bukve (Fagus sylvatica L.) v poskusu Kamenski hrib/Straža (Bu20-12) za dinamično ohranjanje gozdov v času pospešenih okoljskih spremembMarija Kravanja, Marjana Westergren, Natalija Dovč, Gregor Božič, 2026, published scientific conference contribution abstract Abstract: Čas sečnje, lunine mene in fenološke faze vplivajo na vlažnost lesa navadne bukve (Fagus silvatyca L.)
Keywords: provenienčni poskus, navadna bukev, Fagus sylvatica L., primerjalne raziskave, prilagoditveni potencial
Published in DiRROS: 22.05.2026; Views: 330; Downloads: 128
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4. The maternal environment of European beech (Fagus sylvatica L.) affects intrapopulation variability in seed traits and germinationVladan Popović, Aleksandar Lučić, Mladen Ivanković, Branislav Cvjetković, Gregor Božič, Vlatko Andonovski, Danijela Miljković, 2026, original scientific article Abstract: Interpopulation variation was investigated using seed samples originating from twenty-six European beech (Fagus sylvatica L.) populations across the Balkan Peninsula, a part of the species’ distribution range characterized by high ecological heterogeneity in key climatic factors, such as temperature (5.8-10.6 °C), precipitation (648-1632 mm), and elevation (185-1410 m a.s.l.). The statistical significance of intrapopulation differences was confirmed by analysis of variance (ANOVA) for all seed traits analyzed: seed weight (g), length (mm), width (mm), thickness (mm), eccentricity and flatness indices, and germination capacity (%). Multivariate principal component analysis (PCA) was applied to examine seed traits in relation to environmental variables of the maternal site, such as mean temperature and precipitation in September and October (the seed maturation period), revealing distinct patterns of relationships among the variables studied. Seed traits were significantly positively correlated with mean temperatures of the maternal site in September and October, indicating that temperature during the seed-filling period affects seed mass. Germination capacity was associated with precipitation during the same period, though the correlation coefficient was not statistically significant; a shorter vector length in the PC biplot suggests a weaker contribution to population separation. Elevation of the site of origin showed a significant negative correlation with temperature, precipitation, and seed traits. Agglomerative hierarchical clustering analysis identified three distinct population clusters. Higher temperature and precipitation values did not necessarily result in higher seed trait values or higher germination percentages. The population with the highest seed mass exhibited the lowest germination capacity (32%) during seed maturation under the lowest precipitation. Conversely, the population characterized by the lowest seed mass showed a higher germination rate of 68% in environments with high precipitation. These results provide valuable insights into the reproductive ecology of European beech, suggesting that other factors beyond those analyzed here may have a more substantial influence on seed germination. The variation in seed traits across habitats that are either drier and hotter or colder and wetter, along the elevation gradient of the studied populations, paves the way for future research and breeding efforts to enhance the species’ survival and reproductive success amid anticipated climate change scenarios.
Keywords: seed traits, seed germination, European beech, Fagus sylvatica L., environmental variation, southeast europe, genetic variation
Published in DiRROS: 20.04.2026; Views: 362; Downloads: 238
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5. The FORGENIUS genomic resources : new genotyping tools and genomic data for 23 forest tree species and their genetic conservation unitsSara Pinosio, Francesca Bagnoli, Camilla Avanzi, Maria Beatrice Castellani, Arcangela Frascella, Susan McEvoy, Sanna Olsson, Ilaria Spanu, Elia Vajana, Marko Bajc, Gregor Božič, Rok Damjanić, Natalija Dovč, Luka Krajnc, Marija Kravanja, Gal Oblišar, Gregor Skoberne, Marjana Westergren, 2026, original scientific article Abstract: Genetic diversity is a critical but often overlooked component of biological diversity. The European H2020 FORGENIUS project is aimed at increasing the quality and quantity of genetic data to start monitoring the European network of forest Genetic Conservation Units (GCUs). A first step in this direction was developing standardised genomic resources for 23 forest tree species, spanning from rare and scattered (e.g., Abies nebrodensis and Torminalis glaberrima) to widespread and stand-forming, economically relevant ones (e.g., Fagus sylvatica, Picea abies and Pinus sylvestris). Here, we describe the development and application of targeted genotyping tools, primarily based on Single Primer Enrichment Technology (SPET), along with existing SNP arrays for the selected species. The SPET panels developed in FORGENIUS were designed to capture ⁓10,000 loci per species, balancing species-specific and randomly distributed regions to ensure broad genome coverage and minimise ascertainment bias. Across 7220 genotyped trees, we identified over 1.8 million single nucleotide polymorphisms (SNPs) covering approximately 50 Mb of DNA sequence. SPET panels demonstrated high genotyping efficiency and cross-species transferability, especially within genera such as Quercus and Abies. They represent a cost-effective, flexible, and scalable solution for population-level genetic assessments across diverse taxa, enabling standardised, genome-wide characterisation of the GCU network. These resources not only promote the establishment of genetic monitoring, support genetically informed conservation strategies and improve our understanding of adaptive responses in European forests, but also enhance species delimitation and hybrid detection, and enable the characterisation of phylogenetically related but previously underexplored species.
Keywords: forest tree species, genetic conservation units, genetic diversity, genetic monitoring, single primer enrichment technology, targetedgenotyping, SNP, SPET
Published in DiRROS: 06.03.2026; Views: 455; Downloads: 454
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6. Fagus sylvatica BU2012: : a genetic dataset for trial trees from the international beech provenance trial "Kamenski hrib/Straža (SI) 1996/1998"Marko Bajc, Gregor Božič, Marija Kravanja, Sara Pinosio, Francesca Bagnoli, Marjana Westergren, 2026, complete scientific database of research data Keywords: research data, genetic dataset, trial trees, international provenance trial, beech
Published in DiRROS: 23.02.2026; Views: 664; Downloads: 385
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7. Smernice za gozdni genetski monitoring evropskega črnega topola (Populus nigra L.)Gregor Božič, Sandor Bordacs, Berthold Heinze, Marko Bajc, Filipos Aravanopoulos, Dalibor Ballian, Rok Damjanić, Barbara Fussi, Darius Kavaliauskas, Zvonimir Vujnović, Marjana Westergren, Hojka Kraigher, 2020, other monographs and other completed works Keywords: gozdovi, genetski monitoring, gozdna genetika, evropski črni topol, Populus nigra L.
Published in DiRROS: 13.02.2026; Views: 606; Downloads: 184
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8. Smernice za gozdni genetski monitoring bele jelke (Abies alba MIll.) in Borisove jelke (Abies borisii-regis Mattf.)Darius Kavaliauskas, Barbara Fussi, Dalibor Ballian, Paraskevi Alizoti, Nikolaos Tourvas, Gregor Božič, Evangelos Barbas, Marjana Westergren, Marko Bajc, Rok Damjanić, Natalija Dovč, Filipos Aravanopoulos, Hojka Kraigher, 2020, other monographs and other completed works Keywords: gozdovi, genetski monitoring, gozdna genetika, bela jelka, Abies alba MIll., Borisova jelka, Abies borisii-regis Mattf.
Published in DiRROS: 13.02.2026; Views: 698; Downloads: 283
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9. Smernice za gozdni genetski monitoring divje češnje (Prunus avium (L.) L.)Darius Kavaliauskas, Barbara Fussi, Filipos Aravanopoulos, Paraskevi Alizoti, Dalibor Ballian, Nikos Tourvas, Gregor Božič, Evangelos Barbas, Marjana Westergren, Marko Bajc, Rok Damjanić, Hojka Kraigher, 2020, other monographs and other completed works Keywords: gozdovi, genetski monitoring, gozdna genetika, divja češnja, Prunus avium (L.) L.
Published in DiRROS: 13.02.2026; Views: 727; Downloads: 152
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10. Smernice za gozdni genetski monitoring navadne bukve (Fagus sylvatica L.)Marjana Westergren, Darius Kavaliauskas, Paraskevi Alizoti, Marko Bajc, Filipos Aravanopoulos, Gregor Božič, Rok Damjanić, Natalija Dovč, Domen Finžgar, Barbara Fussi, Fotios Kiourtsis, Hojka Kraigher, 2020, other monographs and other completed works Keywords: gozdovi, genetski monitoring, gozdna genetika, navadna bukev, Fagus sylvatica L.
Published in DiRROS: 13.02.2026; Views: 621; Downloads: 188
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