11. Between but not within-species variation in the distribution of fitness effectsJennifer James, Chedly Kastallya, Katharina Budde, Santiago C. González-Martínez, Pascal Milesi, Tanja Pyhäjärvi, Martin Lascoux, 2023, izvirni znanstveni članek Povzetek: New mutations provide the raw material for evolution and adaptation. The distribution of fitness effects (DFE) describes the spectrum of effects of new mutations that can occur along a genome, and is, therefore, of vital interest in evolutionary biology. Recent work has uncovered striking similarities in the DFE between closely related species, prompting us to ask whether there is variation in the DFE among populations of the same species, or among species with different degrees of divergence, that is whether there is variation in the DFE at different levels of evolution. Using exome capture data from six tree species sampled across Europe we characterized the DFE for multiple species, and for each species, multiple populations, and investigated the factors potentially influencing the DFE, such as demography, population divergence, and genetic background. We find statistical support for the presence of variation in the DFE at the species level, even among relatively closely related species. However, we find very little difference at the population level, suggesting that differences in the DFE are primarily driven by deep features of species biology, and those evolutionarily recent events, such as demographic changes and local adaptation, have little impact. Ključne besede: DFE, deleterious mutations, population structure, forest trees Objavljeno v DiRROS: 12.12.2023; Ogledov: 252; Prenosov: 106 Celotno besedilo (1,15 MB) Gradivo ima več datotek! Več... |
12. ZaDravo : projektna naloga - sklop BGregor Božič, Andreja Ferreira, Marko Bajc, Marjana Westergren, 2022, končno poročilo o rezultatih raziskav Ključne besede: beli topol, evropski črni topol, genski sklad, izbira drevesa, lokacija, spol, vrstna čistost, genetski označevalci, oblika lista, Drava, Slovenija, poročila Objavljeno v DiRROS: 16.12.2022; Ogledov: 482; Prenosov: 243 Celotno besedilo (67,27 MB) |
13. Ectomycorrhizal fungal community in mature white poplar plantationMarina Milović, Saša Orlović, Tine Grebenc, Marko Bajc, Branislav Kovačević, Hojka Kraigher, 2021, izvirni znanstveni članek Povzetek: Ectomycorrhizal communities are rarely studied on seasonal basis, especially in poplar plantations. In this study we analysed the ectomycorrhizal community in a mature twenty-year-old white poplar (Populus alba L.) plantation during four consecutive seasons. Using morpho-anatomical and molecular identification 30 taxa of ectomycorrhizal fungi were recorded of which 15 were identified to the species level, 12 to the genus level, 2 to the family, and one morphotype of ectomycorrhizae remained unidentified. The most abundant among identified ectomycorrhizal fungi were: Inocybe griseovelata, Inocybe splendens, Tuber rufum, and Tomentella sp. 2, which together represented up to 50% of all ectomycorrhizal root tips. The number of ectomycorrhizal fungal taxa and the percentage of vital ectomycorrhizal root tips were highest in winter and spring, respectively. The diversity indices of ectomycorrhizae, number of vital ectomycorrhizal root tips, and total fine roots in the studied poplar plantation did not differ between seasons. Ectomycorrhizal fungi belonging to Inocybaceae family and the short-distance exploration strategy were dominant in all four seasons. On the other hand, the abundance of ectomycorrhizal root tips belonging to the medium-distance exploration strategy type was significantly higher in spring in comparison with autumn and winter. Ključne besede: Populus alba L., Ectomycorrhizal diversity, morpho-anatomical characterization, molecular identification, seasons Objavljeno v DiRROS: 03.12.2021; Ogledov: 842; Prenosov: 380 Celotno besedilo (847,82 KB) Gradivo ima več datotek! Več... |
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15. Razvoj brezpilotnega sistema za vzorčenje iz drevesnih krošenjMarko Bajc, Jernej Brezovar, Domen Finžgar, Andraž Kladnik, Rok Capuder, Hojka Kraigher, 2016, objavljeni povzetek znanstvenega prispevka na konferenci Ključne besede: brezpilotni letalniki, vzorčenje drevesnih krošenj, patenti, droni, robotska roka, daljinsko upravljanje, EUFORINNO Objavljeno v DiRROS: 03.11.2021; Ogledov: 758; Prenosov: 451 Celotno besedilo (1,29 MB) Gradivo ima več datotek! Več... |
16. Root growth dynamics of three beech (Fagus sylvatica L.) provenancesPeter Železnik, Marjana Westergren, Gregor Božič, Klemen Eler, Marko Bajc, Heljä-Sisko Helmisaari, Aniko Horvath, Hojka Kraigher, 2015, objavljeni povzetek znanstvenega prispevka na konferenci Objavljeno v DiRROS: 03.11.2021; Ogledov: 753; Prenosov: 470 Celotno besedilo (1,05 MB) |
17. Ectomycorrhiza between Scleroderma Areolatum Ehrenb. and Fagus sylvatica L.Tanja Mrak, Katja Kühdorf, Tine Grebenc, Ines Štraus, Marko Bajc, Nada Žnidaršič, Babette Münzenberger, Hojka Kraigher, 2015, objavljeni povzetek znanstvenega prispevka na konferenci Objavljeno v DiRROS: 03.11.2021; Ogledov: 782; Prenosov: 270 Celotno besedilo (1,05 MB) |
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