Ø
Øystein Johnsen
Researcher at Norwegian Forest and Landscape Institute
Publications - 61
Citations - 3676
Øystein Johnsen is an academic researcher from Norwegian Forest and Landscape Institute. The author has contributed to research in topics: Picea abies & Hardiness (plants). The author has an hindex of 30, co-authored 61 publications receiving 3394 citations. Previous affiliations of Øystein Johnsen include Norwegian University of Life Sciences & Forest Research Institute.
Papers
More filters
Journal ArticleDOI
Tree and forest functioning in response to global warming
TL;DR: This review focuses on tree and forest responses at boreal and temperate latitudes, ranging from the cellular to the ecosystem level, and management is critical for a positive response of forest growth to a warmer climate.
Journal ArticleDOI
Epigenetic regulation of adaptive responses of forest tree species to the environment.
Katharina Bräutigam,Kelly J. Vining,Clément Lafon-Placette,Carl Gunnar Fossdal,Marie Mirouze,José Gutiérrez Marcos,Silvia Fluch,Mario F. Fraga,M. Ángeles Guevara,Dolores Abarca,Øystein Johnsen,Stéphane Maury,Steven H. Strauss,Malcolm M. Campbell,Antje Rohde,Carmen Díaz-Sala,María-Teresa Cervera +16 more
TL;DR: The possible role of forest tree epigenetics as a new source of adaptive traits in plant breeding, biotechnology, and ecosystem conservation under rapid climate change is considered.
Journal ArticleDOI
Genetic consequences of glacial survival and postglacial colonization in Norway spruce: combined analysis of mitochondrial DNA and fossil pollen.
Mari Mette Tollefsrud,Roy Kissling,Felix Gugerli,Øystein Johnsen,Tore Skrøppa,Rachid Cheddadi,W.O. van der Knaap,Małgorzata Latałowa,Ruth Terhürne-Berson,Thomas Litt,Thomas Geburek,Christian Brochmann,Christoph Sperisen +12 more
TL;DR: The patterns of population subdivision superimposed on interpolated fossil pollen distributions indicate that survival in separate refugia and postglacial colonization has led to significant structuring of genetic variation in the southern range of the Norway spruce species.
Journal ArticleDOI
MicroRNAs, the epigenetic memory and climatic adaptation in Norway spruce
TL;DR: Norway spruce expresses a temperature-dependent epigenetic memory from the time of embryo development, which thereafter influences the timing bud phenology and the differentially expression of specific miRNAs indicate their putative participation in the epigenetic regulation.
Journal ArticleDOI
Climatic adaptation in Picea abies progenies is affected by the temperature during zygotic embryogenesis and seed maturation
Øystein Johnsen,Carl Gunnar Fossdal,Nina Elisabeth Nagy,Jørgen A. Mølmann,Ola Gram Dæhlen,Tore Skrøppa +5 more
TL;DR: It is hypothesize that temperature during zygotic embryogenesis and seed maturation regulates an 'epigenetic memory' in the progeny, involving differential expression of genes that may regulate bud phenology, cold acclimation and embryogenesis in Norway spruce.