Browsing Biologisk institutt by Title
Now showing items 59-78 of 118
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(Doctoral thesis / Doktoravhandling, 2008)In most cases, the proliferation of marine planktonic alga is ecologically beneficial for the marine food web. However, harmful algal blooms can have negative effects by causing fish kills. In this PhD thesis particularly ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2009)Background Genetic variation has been shown to play a significant role in determining susceptibility to the salmon louse, Lepeophtheirus salmonis. However, the mechanisms involved in differential response ...
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(Master thesis / Hovedoppgave, 2005)Abstract Juniperus procera is a long-lived quality timber species that is endangered in its entire African distribution and listed as lower risk near threatened (LR-nt) in IUCN Red Data List for Malawi. It is characterized ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)When plastids are transferred between eukaryote lineages through series of endosymbiosis, their environment changes dramatically. Comparison of dinoflagellate plastids that originated from different algal groups has revealed ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)Atlantic cod (Gadus morhua) is a large, cold-adapted teleost that sustains long-standing commercial fisheries and incipient aquaculture. Here we present the genome sequence of Atlantic cod, showing evidence for complex ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)Background The vertebrate globin genes encoding the α- and β-subunits of the tetrameric hemoglobins are clustered at two unlinked loci. The highly conserved linear order of the genes flanking the hemoglobins ...
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(Master thesis / Hovedoppgave, 2005)Geografisk variasjon i metaller og metallotionein i lever hos bergnebb (Ctenolabrus rupestris) og skrubbe (Platichthys flesus) langs den norske Skagerrakkysten. Med utgangspunkt i 6 områder langs Skagerrakkysten, spredt ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2009)Background Although some mechanisms of habitat adaptation of conspecific populations have been recently elucidated, the evolution of female preference has rarely been addressed as a force driving habitat ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)Understanding why some hybrid zones are bimodal and others unimodal can aid in identifying barriers to gene exchange following secondary contact. The hybrid zone between the grasshoppers Chorthippus brunneus and C. jacobsi ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)Harvesting wild populations may contrast or reinforce natural agents of selection and potentially cause evolutionary changes in life-history traits such as growth and maturation. Harvest selection may also act on behavioral ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)Background Dryas octopetala is a widespread dwarf shrub in alpine and arctic regions that forms ectomycorrhizal (ECM) symbiotic relationships with fungi. In this study we investigated ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)Background The mating type loci that govern the mating process in fungi are thought to be influenced by negative frequency-dependent selection due to rare allele advantage. In this study we used a mating ...
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(Master thesis / Masteroppgave, 2008)Marine trepigget stingsild (Gasterosteus aculeatus) har kolonisert ulike ferskvannshabitat gjentatte ganger og denne koloniseringen har ført til ulikheter innen trekk som morfologi, atferd, fysiologi og livshistorie. Disse ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2006)The polymeric Ig receptor (pIgR), also called membrane secretory component (SC), mediates epithelial transcytosis of polymeric immunoglobulins (pIgs). J Chain-containing polymeric IgA (pIgA) and pentameric IgM bind pIgR ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)The seasonal timing of avian reproduction is supposed primarily to coincide with favourable feeding conditions. Long-term changes in avian breeding phenology are thus mostly scrutinized in relation to climatic factors and ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)Recent multilocus studies of congeneric birds have shown a pattern of elevated interspecific divergence on the Z chromosome compared to the autosomes. In contrast, intraspecifically, birds exhibit less polymorphism on the ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)Background Effects of polyploidisation on gene flow between natural populations are little known. Central European diploid and tetraploid populations of Arabidopsis arenosa and A. lyrata are here used to ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)Background During the last 15 years the internal transcribed spacer (ITS) of nuclear DNA has been used as a target for analyzing fungal diversity in environmental samples, and has recently been selected as ...
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(Conference object / Konferansebidrag, 2010)
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(Doctoral thesis / Doktoravhandling, 2010)Rødkinnet spyflue (Calliphora vicina) er et alvorlig skadedyr i norsk tørrfiskproduksjon. I dårlige år forårsaker insektene et økonomisk tap som overskrider 10 millioner kroner. Problemene oppstår når fluene legger egg på ...