Blar i Department of Biological Sciences på emneord "VDP::Matematikk og naturvitenskap: 400::Basale biofag: 470::Genetikk og genomikk: 474"
Viser treff 1-17 av 17
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Comparing the transcriptomes of embryos from domesticated and wild Atlantic salmon (Salmo salar L.) stocks and examining factors that influence heritability of gene expression
(Peer reviewed; Journal article, 2016-03-17)Background: Due to selective breeding, domesticated and wild Atlantic salmon are genetically diverged, which raises concerns about farmed escapees having the potential to alter the genetic composition of wild populations ... -
Genomic characterization and phylogenetic position of two new species in Rhabdoviridae infecting the parasitic copepod, salmon louse (Lepeophtheirus salmonis)
(Peer reviewed; Journal article, 2014-11-17)Several new viruses have emerged during farming of salmonids in the North Atlantic causing large losses to the industry. Still the blood feeding copepod parasite, Lepeophtheirus salmonis, remains the major challenge for ... -
Hatching time and alevin growth prior to the onset of exogenous feeding in farmed, wild and hybrid Norwegian Atlantic salmon
(Peer reviewed; Journal article, 2014-12-01)The onset of exogenous feeding, when juveniles emerge from the gravel, is a critical event for salmonids where early emergence and large size provide a competitive advantage in the wild. Studying 131 farmed, hybrid and ... -
Host specificity and clade dependent distribution of putative virulence genes in Moritella viscosa
(Peer reviewed; Journal article, 2014-12)Moritella viscosa is the aetiological agent of winter-ulcer disease in farmed salmonids in the North Atlantic. Previously, two major (typical and variant) genetic clades have been demonstrated within this bacterial species, ... -
Identification and Description of the Key Molecular Components of the Egg Strings of the Salmon Louse (Lepeophtheirus salmonis)
(Peer reviewed; Journal article, 2019-12-03)The salmon louse Lepeophtheirus salmonis is a parasite of Atlantic salmon and other salmonids. Every year, it causes high costs for the Norwegian aquaculture industry. While the morphology of the female genital tract has ... -
The importance of social dimension and maturation stage for the probabilistic maturation reaction norm in Poecilia reticulata
(Peer reviewed; Journal article, 2013-10)Maturation is an important event in an organism's life history, with important implications on dynamics of both wild and captive populations. The probabilistic maturation reaction norm (PMRN) has emerged as an important ... -
Improbable but true: the invasive inbreeding ambrosia beetle Xylosandrus morigerus has generalist genotypes
(Peer reviewed; Journal article, 2012-01)The wide distribution and dominance of invasive inbreeding species in many forest ecosystems seems paradoxical in face of their limited genetic variation. Successful establishment of invasive species in new areas is ... -
Insect glycerol transporters evolved by functional co-option and gene replacement
(Peer reviewed; Journal article, 2015-07-17)Transmembrane glycerol transport is typically facilitated by aquaglyceroporins in Prokaryota and Eukaryota. In holometabolan insects however, aquaglyceroporins are absent, yet several species possess polyol permeable ... -
Lifespan extension in a semelparous chordate occurs via developmental growth arrest just prior to meiotic entry
(Peer reviewed; Journal article, 2014-04-02)It is proposed that the ageing process is linked to signaling from the germline such that the rate of ageing can be adjusted to the state of the reproductive system, allowing these two processes to co-evolve. Mechanistic ... -
The lineage-specific evolution of aquaporin gene clusters facilitated tetrapod terrestrial adaptation
(Peer reviewed; Journal article, 2014-11-26)A major physiological barrier for aquatic organisms adapting to terrestrial life is dessication in the aerial environment. This barrier was nevertheless overcome by the Devonian ancestors of extant Tetrapoda, but the origin ... -
Microrefugia and shifts of Hippophae tibetana (Elaeagnaceae) on the north side of Mt. Qomolangma (Mt. Everest) during the last 25000 years
(Peer reviewed; Journal article, 2014-05-19)Microrefugia at high altitudes or high latitudes are thought to play an important role in the post-glacial colonization of species. However, how populations in such microrefugia have responded to climate changes in alternating ... -
OikoBase: a genomics and developmental transcriptomics resource for the urochordate Oikopleura dioica
(Peer reviewed; Journal article, 2013-11-26)We report the development of OikoBase (http://oikoarrays.biology.uiowa.edu/Oiko/), a tiling array-based genome browser resource for Oikopleura dioica, a metazoan belonging to the urochordates, the closest extant group to ... -
Phylogenomic and functional analyses of salmon lice aquaporins uncover the molecular diversity of the superfamily in Arthropoda
(Peer reviewed; Journal article, 2015-08-19)Background An emerging field in biomedical research is focusing on the roles of aquaporin water channels in parasites that cause debilitating or lethal diseases to their vertebrate hosts. The primary vectorial agents are ... -
Sequence divergence and diversity suggests ongoing functional diversification of vertebrate NAD metabolism
(Peer reviewed; Journal article, 2014-11)NAD is not only an important cofactor in redox reactions but has also received attention in recent yearsbecause of its physiological importance in metabolic regulation, DNA repair and signaling. In contrast tothe redox ... -
Stochastic dynamics of interacting haematopoietic stem cell niche lineages
(Peer reviewed; Journal article, 2014-09-04)Since we still know very little about stem cells in their natural environment, it is useful to explore their dynamics through modelling and simulation, as well as experimentally. Most models of stem cell systems are based ... -
The two-step development of a duplex retina involves distinct events of cone and rod neurogenesis and differentiation
(Peer reviewed; Journal article, 2016-08)Unlike in mammals, persistent postembryonic retinal growth is a characteristic feature of fish, which includes major remodeling events that affect all cell types including photoreceptors. Consequently, visual capabilities ... -
Virus infection of Haptolina ericina and Phaeocystis pouchetii implicates evolutionary conservation of programmed cell death induction in marine haptophyte-virus interactions
(Peer reviewed; Journal article, 2014-05-05)The mechanisms by which phytoplankton cope with stressors in the marine environment are neither fully characterized nor understood. As viruses are the most abundant entities in the global ocean and represent a strong ...