Browsing Department of Biological Sciences by Title
Now showing items 1394-1413 of 2235
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Molecular analysis of the development and function of the apical organ in the sea anemone Nematostella vectensis
(Doctoral thesis, 2015-10-09)The shapes and patterns displayed across the animal kingdom exhibit great diversity, but at the same time similarities in their appearance can be observed. Scientist in the past have studied animal forms based on morphology. ... -
Molecular and morphological analysis of the developing nemertean brain indicates convergent evolution of complex brains in Spiralia
(Journal article; Peer reviewed, 2021)Background The brain anatomy in the clade Spiralia can vary from simple, commissural brains (e.g., gastrotrichs, rotifers) to rather complex, partitioned structures (e.g., in cephalopods and annelids). How often and in ... -
Molecular characterisation of key components of the mucosal immune system in Atlantic salmon (Salmo salar L) and transcriptome analysis of responses against the salmon louse (Lepeophtheirus salmonis)
(Doctoral thesis, 2012-04-17)Mucosal immunity in mammals is mediated mainly by secretory immunoglobulin A (SIgA), which is produced by IgA plasma cells commonly located in the lamina propria, and a transport system involving the polymeric Ig receptor ... -
Molecular characterisation of the salmon louse, Lepeophtheirus salmonis salmonis (Krøyer, 1837), ecdysone receptor with emphasis on functional studies of female reproduction
(Peer reviewed; Journal article, 2015-02)The salmon louse Lepeophtheirus salmonis (Copepoda, Caligidae) is an important parasite in the salmon farming industry in the Northern Hemisphere causing annual losses of hundreds of millions of dollars (US) worldwide. To ... -
Molecular characterisaton of T cell co-receptors CD3, CD8 and CD4 in Atlantic salmon (Salmo salar)
(Doctoral thesis, 2009-03-27)The commercial importance of Atlantic salmon (Salmo salar) in aquaculture has fuelled much research into fish health since outbreaks of infectious disease cause major financial losses. All aspects of immunology are therefore ... -
Molecular characterization of an environmental bacterial isolate with strong serological cross-reaction with Shigella boydii 15. Implications for live shigellosis vaccine development
(Master thesis, 2009-04-07)Bacillary dysentery caused by Shigella bacteria (shigellosis) is a major health problem in developing countries. Even though contaminated drinking water is expected to play an important role for the dissemination of this ... -
Molecular characterization of the lipophorin receptor in the crustacean ectoparasite Lepeophtheirus salmonis
(Peer reviewed; Journal article, 2018-04-12)The Salmon louse (Lepeophtheirus salmonis) is a marine ectoparasite of salmonid fish in the Northern Hemisphere and considered as a major challenge in aquaculture and a threat to wild populations of salmonids. Adult female ... -
Molecular characterization of the myoliquefactive fish parasite kudoa mirabilis (Cnidaria, kudoidae) from se Indian Ocean and its phylogenetic relationship with the kudoa thyrsites species complex
(Journal article; Peer reviewed, 2020)Myxosporean parasites of the genus Kudoa are fish parasites of great economic importance, as some species can affect the fish fillet quality by producing macroscopic cysts or generating post mortem myoliquefaction, commonly ... -
Molecular evidence of parallel evolution in a cyanophage
(Journal article; Peer reviewed, 2023)Antagonistic interactions between bacteriophage (phage) and its bacterial host drives the continual selection for resistance and counter-defence. To date, much remains unknown about the genomic evolution that occurs as ... -
Molecular evidence that only two opsin subfamilies, the blue light- (SWS2) and green light-sensitive (RH2), drive color vision in Atlantic cod (Gadus morhua)
(Peer reviewed; Journal article, 2014-12-31)Teleosts show a great variety in visual opsin complement, due to both gene duplication and gene loss. The repertoire ranges from one subfamily of visual opsins (scotopic vision) including rod opsin only retinas seen in ... -
Molecular gut content analysis demonstrates that Calanus grazing on Phaeocystis pouchetii and Skeletonema marinoi is sensitive to bloom phase but not prey density
(Peer reviewed; Journal article, 2016-01-19)Mesozooplankton grazing selection in complex marine microbial communities is a poorly understood yet critical structuring component of marine microbial food webs. We wished to quantitatively assess how relative grazing by ... -
The Molecular Machinery of Gametogenesis in Geodia Demosponges (Porifera): Evolutionary Origins of a Conserved Toolkit across Animals
(Journal article; Peer reviewed, 2020)All animals are capable of undergoing gametogenesis. The ability of forming haploid cells from diploid cells through meiosis and recombination appeared early in eukaryotes, whereas further gamete differentiation is mostly ... -
Molecular mechanisms of Charcot-Marie-Tooth neuropathy linked to mutations in human myelin protein P2
(Peer reviewed; Journal article, 2017-07-26)Charcot-Marie-Tooth (CMT) disease is one of the most common inherited neuropathies. Recently, three CMT1-associated point mutations (I43N, T51P, and I52T) were discovered in the abundant peripheral myelin protein P2. These ... -
Molecular phylogenies challenge the classification of Polymastiidae (Porifera, Demospongiae) based on morphology
(Peer reviewed; Journal article, 2016)Polymastiidae Gray, 1867 is a worldwide distributed sponge family, which has a great significance for understanding of the demosponge deep phylogeny since the former order Hadromerida Topsent, 1894 has been recently split ... -
Molecular Phylogeny of the Astrophorida (Porifera, Demospongiaep) Reveals an Unexpected High Level of Spicule Homoplasy
(Peer reviewed; Journal article, 2011-04-08)Background: The Astrophorida (Porifera, Demospongiaep) is geographically and bathymetrically widely distributed. Systema Porifera currently includes five families in this order: Ancorinidae, Calthropellidae, Geodiidae, ... -
The molecular regulation of molting in the salmon louse (Lepeophtheirus salmonis)
(Doctoral thesis, 2021-12-10)The salmon louse, Lepeophtheirus salmonis, is a copepod and an ectoparasite that infects salmonids in the Northern hemisphere. At present, salmon louse infestations are the biggest threat to the health and welfare of wild ... -
Molecular systematics of the long-snouted deep water dogfish (Centrophoridae, Deania) with implications for identification, taxonomy and conservation.
(Journal article; Peer reviewed, 2021-01-20)According to the most recent taxonomical revision, the deep-sea dogfish genus Deania encompasses four species. Three of them, D. calcea, D. profundorum, and D. hystricosa, occur in the North Atlantic. Whilst D. profundorum ... -
Molecular tools for the detection and identification of Ichthyobodo spp. (Kinetoplastida), important fish parasites
(Peer reviewed; Journal article, 2012-12)Ichthyobodo spp. are ectoparasitic flagellates of fish that may cause disease (ichthyobodosis), a common problem affecting the aquaculture industry worldwide. Ichthyobodosis in farmed fish is often associated with a range ... -
Monitoring litter and microplastics in Arctic mammals and bird
(Journal article; Peer reviewed, 2022)Plastic pollution has been reported to affect Arctic mammals and birds. There are strengths and limitations to monitoring litter and microplastics using Arctic mammals and birds. One strength is the direct use of these ... -
Monitoring of microplastic pollution in the Arctic: Recent developments in polymer identification, quality assurance and control (QA/QC), and data reporting
(Journal article; Peer reviewed, 2022)The pollution of the environment with plastics is of growing concern worldwide, including the Arctic region. While larger plastic pieces are a visible pollution issue, smaller microplastics are not visible with the naked ...