Background Data for: Ecosystem sequencing of the boreal forest mycobiome reveals high substrate specificityhttps://doi.org/10.18710/IEMBSOMarkus Osaland FjeldeDataverseNO2026-06-112026-06-11T07:03:22ZThis dataset contains the mapfile used to link environmental DNA samples to sequencing libraries (Illumina paired-end reads, fungal ITS2) at PRJNA@. The mapfile contains the relationships between sample IDs, sequencing libraries (forward: R1/reverse: R2), barcodes (tags), and substrates (DNA isolation source).Earth and Environmental SciencesMedicine, Health and Life SciencesInternal transcribed spacer 2 (ITS2), Boreal Forest, MycobiomeFungiEnglishFjelde, M. O., Kauserud, H., Halvorsen, R., Nilsen, C., Konestabo, H. S., Skrede, I., & Maurice, S. 2026. Ecosystem Sequencing of the Boreal Forest Mycobiome Reveals High Substrate Specificity. Molecular Ecology vol. 35, no. 11: e70423., doi, 10.1111/mec.70423, https://onlinelibrary.wiley.com/doi/full/10.1111/mec.704232026-06-11Fjelde, Markus OsalandMaurice, SundyKauserud, HåvardSkrede, IngerKonestabo, Sjursen, HeidiHalvorsen, RuneNilsen, Celina2025-09-19AkershusBlåfjellAskerNorwayInnlandetSøndre LandTretjernaNorwayAkershusLunnerSkotjernfjelletNorwayCC0 1.0