Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2011
Forfattere
Jan Bartoš Simen Rød Sandve Roland Kölliker David Kopecký Pavla Christelová Štěpán Stočes Liv Østrem Arild Larsen Andrzej Kilian Odd Arne Rognli Jaroslav DoleželSammendrag
Det er ikke registrert sammendrag
Forfattere
Jan Bartoš Simen Rød Sandve Roland Kölliker David Kopecký Pavla Christelová Štepán Stoces Liv Ostrem Arild Larsen Andrzej Kilian Odd-Arne Rognli Jaroslav DoleželSammendrag
Species belonging to the Festuca-Lolium complex are important forage and turf species and as such have been intensively studied. However, their out-crossing nature and limited availability of molecular markers make genetic studies difficult. Here, we report on saturation of F. pratensis and L. multiflorum genetic maps using Diversity Array Technology (DArT) markers and the DArTFest array. 529 and 148 DArT markers were placed on genetic map of L. multiflorum and F. pratensis, respectively, with overlap of 16 markers mapped in both species. The markers were sequenced and mapped in silico to the sequenced genomes of rice and Brachypodium. The utility of the DArTFest array was then tested on a Festulolium population FuRs0357 in an integrated analysis using the DArT marker map positions to study associations between markers and freezing tolerance. Ninety six markers were significantly associated with freezing tolerance and five of these markers were genetically mapped to chromosomes 2, 4 and 7. Three genomic loci associated with freezing tolerance in the FuRs0357 population co-localized with chromosome segments and QTLs previously implicated in freezing tolerance. The present work clearly confirms the potential of the DArTFest array in genetic studies of the Festuca-Lolium complex. The annotated DArTFest array resources could accelerate further studies and improvement of desired traits in Festuca-Lolium species.
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Sonja KlemsdalSammendrag
Det er ikke registrert sammendrag
Forfattere
Abdelhameed Elameen Sonja Klemsdal Heidi Udnes Aamot Gunn Strømeng Venche Talgø Jorunn Børve Arne StensvandSammendrag
Denne artikkelen omhandler genetiske diversitet hos norske isolat av soppen Colletotrichum acutatum.
Sammendrag
Frøplantasjefrø av gran blir stadig mer pupulært og utgjør nå 75% av skogen som plantes i Sørøst-Norge. Enkelte steder er andelen opp i 90%. Dette bidrar til økt overlevelse og en markert produksjonsforbedring av skogen i forhold til bestandsfrø. Men hva vet vi om den genetiske variasjonen i plantasjefrø, som produseres under helt andre betingelser enn frø i vanlige bestand?
Forfattere
jihong liu clarkeSammendrag
Det er ikke registrert sammendrag
Forfattere
Klaus Jürgens Jana Grote Thomas Schott Christian Guido Bruckner Frank Oliver Glöckner Hanno Teeling Günter Jost Matthias LabrenzSammendrag
Det er ikke registrert sammendrag
Forfattere
Igor A. Yakovlev Ari M. Hietala Pierre-Emmanuel Courty Taina Lundell Jan Stenlid Halvor Solheim Carl Gunnar FossdalSammendrag
In forest soils, saprotrophic, necrotrophic and ectomycorrhizal fungi are involved in carbon cycling. Heterobasidion annosum, white rot necrotrophic fungi, is known to decompose wood lignocellulose by secreting a broad range of oxidative enzymes. The genome H. annosum s.l. was sequenced by JGI to a 8.23X coverage and assembled into 39 scaffolds with a total size of 33.7 Mb covering more than 98% of the whole genome. Based on the genome sequence we have characterized gene families coding for enzymes known to participate in conversion of wood lignin: multicopper oxidases (MCOs, 18 genes) as laccases (Lcc), class II peroxidases (8 genes) as manganese peroxidases (MnP), glyoxal oxidases (5 genes, GLOX), quinone-reducing oxidoreductases (19 genes, QOR) and GMC oxidoreductases (12 genes) as aryl alcohol oxidases (AAO). We studied the genomic organisation and phylogeny of these genes as well as their expression using qRT-PCR. Comparative and phylogenetic analyses of genes coding for enzymes involved in wood lignin conversion and decomposition (i.e. lignin-modifying class II peroxidases) reveal differences between white- and brown-rot, necrotrophic and saprotrophic wood-decaying basidiomycetes. Transcript profiling using qRT-PCR revealed that some transcripts were very abundant in lignin-rich media, in cellulose-rich media, in wood or in the free-living mycelium grown liquid culture, suggesting specific functions of these genes, which need to be studied further.
Sammendrag
The Norwegian landscape is changing as a result of forest regeneration within the cultural landscape, and forest expansion has impacts on accessibility, visibility, and landscape aesthetics, thereby affecting the country's tourism industry. This study aimed at identifying the potential areas of forest regeneration and anticipated subsequent landscape effects on different categories of tourist locations in southern Norway. Deforested areas with a potential for forest regeneration were identified from several map sources by GIS-analyses, and 180 tourist locations were randomly selected from the Norwegian national tourism database (Reiselivsbasen), and then buffered by 2 km radius for land cover classes. The findings revealed that approximately 15% of southern Norway has the climatic potential for future forest regeneration, in addition to 5% of cultivated land. Future forest regeneration will affect the landscapes surrounding the tourist locations of rural south Norway, and while the potential is nationwide, it is not uniformly distributed. Two important tourist landscape regions seem especially exposed to forest regeneration: the coastal heath region and the mountain landscapes. Large parts of these areas do not have sufficient numbers of domestic grazing animals necessary to maintain the present character of the landscape.