Blar i Bergen Open Research Archive på forfatter "Male, Rune"
-
Chitin synthases are critical for reproduction, molting, and digestion in the salmon louse (Lepeophtheirus salmonis)
Hardardottir, Hulda; Male, Rune; Nilsen, Frank; Dalvin, Sussie (Journal article; Peer reviewed, 2021-01-13)Chitin synthase (CHS) is a large transmembrane enzyme that polymerizes Uridine diphosphate N-acetylglucosamine into chitin. The genomes of insects often encode two chitin synthases, CHS1 and CHS2. Their functional roles ... -
The ecdysone receptor (EcR) is a major regulator of tissue development and growth in the marine salmonid ectoparasite, Lepeophtheirus salmonis (Copepoda, Caligidae)
Sandlund, Liv; Nilsen, Frank; Male, Rune; Dalvin, Sussie (Peer reviewed; Journal article, 2016-08)The function of the ecdysone receptor (EcR) during development and molting has been thoroughly investigated in some arthropods such as insects but rarely in crustacean copepods such as the salmon louse Lepeophtheirus ... -
Effects of chitin synthesis inhibitor treatment on Lepeophtheirus salmonis (Copepoda, Caligidae) larvae
Hardardottir, Hulda; Male, Rune; Nilsen, Frank; Dalvin, Sussie (Peer reviewed; Journal article, 2019-09-23)The salmon louse (Lepeophtheirus salmonis) is an ectoparasite infecting Atlantic salmon (Salmo salar), which causes substantial problems to the salmon aquaculture and threatens wild salmon. Chitin synthesis inhibitors ... -
Entry into puberty is reflected in changes in hormone production but not in testicular receptor expression in Atlantic salmon (Salmo salar)
Schulz, Rüdiger W.; Taranger, Geir Lasse; Bogerd, Jan; Nijenhuis, Wouter; Norberg, Birgitta; Male, Rune; Andersson, Eva (Peer reviewed; Journal article, 2019-06-21)Background Puberty in male Atlantic salmon in aquaculture can start as early as after the first winter in seawater, stunts growth and entails welfare problems due to the maturation-associated loss of osmoregulation capacity ... -
Environmental contaminants activate human and polar bear (Ursus maritimus) pregnane X receptors (PXR, NR1I2) differently
Lille-Langøy, Roger; Goldstone, Jared; Rusten, Marte; Milnes, Matthew R.; Male, Rune; Stegeman, John J.; Blumberg, Bruce; Goksøyr, Anders (Peer reviewed; Journal article, 2015-04-01)Background Many persistent organic pollutants (POPs) accumulate readily in polar bears because of their position as apex predators in Arctic food webs. The pregnane X receptor (PXR, formally NR1I2, here proposed to be named ... -
The FTZ-F1 gene encodes two functionally distinct nuclear receptor isoforms in the ectoparasitic copepod salmon louse (Lepeophtheirus salmonis)
Brunet, Joakim; Eichner, Christiane; Male, Rune (Journal article; Peer reviewed, 2021)The salmon louse, Lepeophtheirus salmonis, is an ectoparasitic crustacean that annually inflicts substantial losses to the aquaculture industry in the northern hemisphere and poses a threat to the wild populations of ... -
Identification and characterisation of the ecdysone biosynthetic genes neverland, disembodied and shade in the salmon louse Lepeophtheirus salmonis (Copepoda, Caligidae)
Sandlund, Liv; Kongshaug, Heidi; Horsberg, Tor Einar; Male, Rune; Nilsen, Frank; Dalvin, Sussie (Peer reviewed; Journal article, 2018-02-05)The salmon louse is a marine ectoparasitic copepod on salmonid fishes. Its lifecycle consists of eight developmental stages, each separated by a molt. In crustaceans and insects, molting and reproduction is controlled by ... -
Microsomal triglyceride transfer protein in the ectoparasitic crustacean salmon louse (Lepeophtheirus salmonis)
Khan, Muhammad Tanveer; Dalvin, Sussie; Nilsen, Frank; Male, Rune (Peer reviewed; Journal article, 2017-08)The salmon louse, Lepeophtheirus salmonis, is an endemic ectoparasite on salmonid fish that is challenging for the salmon farming industry and wild fish. Salmon lice produce high numbers of offspring, necessitating ... -
Molecular characterisation of the salmon louse, Lepeophtheirus salmonis salmonis (Krøyer, 1837), ecdysone receptor with emphasis on functional studies of female reproduction
Sandlund, Liv; Nilsen, Frank; Male, Rune; Grotmol, Sindre; Kongshaug, Heidi; Dalvin, Sussie Trine (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 characterization of the lipophorin receptor in the crustacean ectoparasite Lepeophtheirus salmonis
Khan, Muhammad Tanveer; Dalvin, Sussie; Waheed, Qaiser; Nilsen, Frank; Male, Rune (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 ... -
Sex differentiation in Atlantic cod (Gadus morhua L.): morphological and gene expression studies
Haugen, Trine; Almeida, Fernanda F. L.; Andersson, Eva; Bogerd, Jan; Male, Rune; Skaar, Katrine Sandnes; Schulz, Rüdiger W.; Sørhus, Elin; Wijgerde, Tim; Taranger, Geir Lasse (Peer reviewed; Journal article, 2012-06-18)Background: In differentiated gonochoristic species, a bipotential gonad develops into an ovary or testis during sex differentiation. Knowledge about this process is necessary to improve methods for masculinizing genetically ... -
Two apolipoproteins in salmon louse (Lepeophtheirus salmonis), apolipoprotein 1 knock down reduces reproductive capacity
Khan, Muhammad Tanveer; Dalvin, Sussie; Nilsen, Frank; Male, Rune (Journal article; Peer reviewed, 2021)The salmon louse, Lepeophtheirus salmonis is an ectoparasite of salmonid fish in the Northern Hemisphere, causing large economical losses in the aquaculture industry and represent a threat to wild populations of salmonids. ...