Browsing Institutt for biovitenskap by Title

Now showing items 1028-1047 of 2915

  • Evolutionary Acquisition and Loss of Saxitoxin Biosynthesis in Dinoflagellates: the Second "Core" Gene, sxtG 
    Orr, Russell; Stüken, Anke; Murray, Shauna A.; Jakobsen, Kjetill Sigurd (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
    Saxitoxin and its derivatives are potent neurotoxins produced by several cyanobacteria and dinoflagellate species. SxtA is the initial enzyme in the biosynthesis of saxitoxin. The dinoflagellate full mRNA and partial genomic ...
  • Evolutionary analysis of the female-specific avian W chromosome 
    Smeds, Linnea; Warmuth, Vera; Bolivar, Paulina; Uebbing, Severin; Burri, Reto; Suh, Alexander; Nater, Alexander; Bures, Stanislav; Garamszegi, Laszlo Z.; Hogner, Silje; Moreno, Juan; Qvarnström, Anna; Ruzic, Milan; Sæther, Stein Are; Sætre, Glenn-Peter; Torok, Janos; Ellegren, Hans (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    The typically repetitive nature of the sex-limited chromosome means that it is often excluded from or poorly covered in genome assemblies, hindering studies of evolutionary and population genomic processes in non-recombining ...
  • Evolutionary and functional insight into the teleost immune system — lessons learned from Atlantic cod and other teleosts 
    Solbakken, Monica Hongrø (Doctoral thesis / Doktoravhandling, 2016)
    Teleosts comprise a very diverse group of species where genome sequencing the last decade has revealed great variability regarding their genetic basis for immunity. With emphasis on the innate immune system, this thesis ...
  • The evolutionary fate of a hybrid lineage: The potential for genomic differentiation in an admixed species 
    Pulido, Angélica María Cuevas (Doctoral thesis / Doktoravhandling, 2022)
    The vast diversity of species we encounter in nature has always fascinated scientists, thus the evolutionary processes responsible for the origin of new species (speciation) is a topic of constant interest among biologists. ...
  • The Evolutionary Potential of Male Plumage Color in a Hybrid Sparrow Species 
    Bache-Mathiesen, Lena Kristin (Master thesis / Masteroppgave, 2015)
    Hybridization is increasingly recognized as a source of novel variation, but how hybridization can contribute to evolution is still not fully understood. Insights into the evolutionary potential of hybrid species, and the ...
  • Evolutionary psychological perspectives on filicide are applicable in modern-day Norway 
    Ottesen, Vibeke Kennair (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Current evolutionary psychological (EP) perspectives on filicide perpetration propose that it is an extreme behavioral manifestation of psychological mechanisms that evolved due to their function toward enabling ancestrally ...
  • Evolutionary Rates in the Haptophyta: Exploring Molecular and Phenotypic Diversity 
    Henderiks, Jorijntje; Sturm, Daniela; Supraha, Luka; Langer, Gerald (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Haptophytes are photosynthetic protists found in both freshwater and marine environments with an origin possibly dating back to the Neoproterozoic era. The most recent molecular phylogeny reveals several haptophyte “mystery ...
  • Evolutionary redesign of the Atlantic cod (Gadus morhua L.) Toll-like receptor repertoire by gene losses and expansions 
    Solbakken, Monica Hongrø; Tørresen, Ole Kristian; Nederbragt, Alexander Johan; Seppola, Marit; Gregers, Tone Fredsvik; Jakobsen, Kjetill Sigurd; Jentoft, Sissel (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
    Genome sequencing of the teleost Atlantic cod demonstrated loss of the Major Histocompatibility Complex (MHC) class II, an extreme gene expansion of MHC class I and gene expansions and losses in the innate pattern recognition ...
  • Evolutionary selection of biofilm-mediated extended phenotypes in Yersinia pestis in response to a fluctuating environment 
    Cui, Yujun; Schmid, Boris Valentijn; Cao, Hanli; Dai, Xiang; Du, Zhongmin; Easterday, William Ryan; Fang, Haihong; Guo, Chenying; Huang, Shanqian; Liu, Wanbing; Qi, Zhizhen; Song, Yajun; Tian, Huaiyu; Wang, Min; Wu, Yarong; Xu, Bing; Yang, Chao; Yang, Jing; Yang, Xianwei; Zhang, Qingwen; Jakobsen, Kjetill Sigurd; Zhang, Yujiang; Stenseth, Nils Christian; Yang, Ruifu (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Yersinia pestis is transmitted from fleas to rodents when the bacterium develops an extensive biofilm in the foregut of a flea, starving it into a feeding frenzy, or, alternatively, during a brief period directly after ...
  • Evolutionary signals of selection on cognition from the great tit genome and methylome 
    Laine, Veronika N.; Gossmann, Toni; Schachtschneider, Kyle M.; Garroway, Colin J.; Madsen, Ole; Verhoeven, Koen J.F.; de Jager, Victor; Megens, Hendrik-Jan; Warren, Wesley C.; Minx, Patrick; Crooijmans, Richard P.M.A.; Corcoran, Pádraic; Adriaensen, Frank; Belda, Eduardo; Bushuev, Andrey; Cichon, Mariusz; Charmantier, Anne; Dingemanse, Niels; Doligez, Blandine; Eeva, Tapio; Erikstad, Kjell E; Fedorov, Slava; Hau, Michaela; Hille, Sabine; Hinde, Camilla; Kempenaers, Bart; Kerimov, Anvar; Krist, Milos; Mand, Raivo; Matthysen, Erik; Nager, Reudi; Norte, Claudia; Orell, Markku; Richner, Heinz; Slagsvold, Tore; Tilgar, Vallo; Tinbergen, Joost; Torok, Janos; Tschirren, Barbara; Yuta, Tera; Sheldon, Ben C.; Slate, Jon; Zeng, Kai; van Oers, Kees; Visser, Marcel E.; Groenen, Martien A.M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
    For over 50 years, the great tit (Parus major) has been a model species for research in evolutionary, ecological and behavioural research; in particular, learning and cognition have been intensively studied. Here, to provide ...
  • Evolutionary time-series analysis reveals the signature of frequency-dependent selection on a female mating polymorphism 
    Le Rouzic, Arnaud; Hansen, Thomas F; Gosden, Thomas P.; Svensson, Erik I. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    A major challenge in evolutionary biology is understanding how stochastic and deterministic factors interact and influence macroevolutionary dynamics in natural populations. One classical approach is to record frequency ...
  • Evolvability A Unifying Concept in Evolutionary Biology? 
    Müller, Gerd B.; Pradeu, Thomas; Schäfer, Katrin; Hansen, Thomas F.; Pélabon, Christophe; Houle, David; Pavličev, Mihaela; de la Rosa, Laura Nuño; Villegas, Cristina; Love, Alan C.; Brigandt, Ingo; Wagner, Günter P.; Bourg, Salomé; Le Rouzic, Arnaud; Hallgrímsson, Benedikt; Aponte, J. David; Vidal-Garcia, Marta; Richbourg, Heather; Green, Rebecca; Young, Nathan M.; Cheverud, James M.; Calof, Anne L.; Lander, Arthur D.; Marcucio, Ralph S.; Wagner, Andreas; Sztepanacz, Jacqueline L.; Clo, Josselin; Opedal, Øystein H.; Morrissey, Michael B.; Reid, Jane M.; Voje, Kjetil L.; Grabowski, Mark; Holstad, Agnes; Porto, Arthur; Tsuboi, Masahito; Bolstad, Geir H.; Armbruster, W. Scott; Galis, Frietson; Jablonski, David (Book / Bok / PublishedVersion; Peer reviewed, 2023)
    Essays on evolvability from the perspectives of quantitative and population genetics, evolutionary developmental biology, systems biology, macroevolution, and the philosophy of science. Evolvability—the capability of ...
  • Evolvability and Robustness A Paradox in Evolutionary Theory 
    Syrowatka, Christine (Doctoral thesis / Doktoravhandling, 2020)
    Research in evolutionary biology is driven by curiosity about the evolution of complex organisms. Their origin and maintenance depend on two conflicting properties ‐ evolvability and robustness. Evolvability is the ability ...
  • Evolvability and trait function predict phenotypic divergence of plant populations 
    Opedal, Øystein Hjorthol; Armbruster, Scott; Hansen, Thomas Fredrik; Holstad, Agnes; Pelabon, Christophe; Andersson, Stefan; Campbell, Diane R.; Caruso, Christina M.; Delph, Lynda F.; Eckert, Christopher G.; Lankinen, Åsa; Walter, Greg M.; Ågren, Jon; Bolstad, Geir Hysing (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Understanding the causes and limits of population divergence in phenotypic traits is a fundamental aim of evolutionary biology, with the potential to yield predictions of adaptation to environmental change. Reciprocal ...
  • Evolvability in the fossil record 
    Love, Alan; Grabowski, Mark Walter; Houle, David; Liow, Lee Hsiang; Porto, Arthur Guimaraes Carvalho; Tsuboi, Masahito; Voje, Kjetil Lysne; Hunt, Gene (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Abstract The concept of evolvability—the capacity of a population to produce and maintain evolutionarily relevant variation—has become increasingly prominent in evolutionary biology. Paleontology has a long history ...
  • Evolvability of morphologicalscaling relationships in Daphnia magna 
    Eriksen, Elke (Master thesis / Masteroppgave, 2019)
  • Evolvability predicts macroevolution under fluctuating selection 
    Holstad, Agnes; Voje, Kjetil L.; Opedal, Øystein Hjorthol; Bolstad, Geir Hysing; Bourg, Salome Cassandra Sarah; Hansen, Thomas Fredrik; Pelabon, Christophe (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2024)
    Heritable variation is a prerequisite for evolutionary change, but the relevance of genetic constraints on macroevolutionary timescales is debated. By using two datasets on fossil and contemporary taxa, we show that ...
  • Examining Community Stability in the Face of Mass Extinction in Communities of Digital Organisms 
    Luo, Tian-Tong; Heier, Lise; Khan, Zaki Ahmad; Hasan, Faraz; Reitan, Trond; Yasseen, Abdool S; Xie, Zi-Xuan; Zhu, Jian-Long; Yedid, Gabriel (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Digital evolution is a computer-based instantiation of Darwinian evolution in which short self-replicating computer programs compete, mutate, and evolve. It is an excellent platform for addressing topics in long-term ...
  • Exceptionally Steep Brain-Body Evolutionary Allometry Underlies the Unique Encephalization of Osteoglossiformes 
    Tsuboi, Masahito (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Brain-body static allometry, which is the relationship between brain size and body size within species, is thought to reflect developmental and genetic constraints. Existing evidence suggests that the evolution of large ...
  • Excitatory and inhibitory effects of HCN channel modulation on excitability of layer V pyramidal cells 
    Mäki-Marttunen, Tuomo; Mäki-Marttunen, Verónica (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Dendrites of cortical pyramidal cells are densely populated by hyperpolarization-activated cyclic nucleotide-gated (HCN) channels, a.k.a. I h channels. I h channels are targeted by multiple neuromodulatory pathways, ...