A well-constrained estimate for the timing of the salmonid whole genome duplication reveals major decoupling from species diversification
- D. Macqueen, I. Johnston
- Biology, Environmental ScienceProceedings of the Royal Society B: Biological…
- 7 March 2014
An extensive set of gene paralogues retained from the salmonid WGD are characterized, showing that climate-linked ecophysiological factors, rather than WGD, were the primary drivers of salmonid diversification.
Environment and plasticity of myogenesis in teleost fish
- I. Johnston
- Biology, Environmental ScienceJournal of Experimental Biology
- 15 June 2006
Embryonic development in teleosts is profoundly affected by environmental conditions, particularly temperature and dissolved oxygen concentrations, which have complex effects on the signalling pathways regulating the proliferation and differentiation of MPCs, protein synthesis and degradation, and patterns of gene expression.
Growth and the regulation of myotomal muscle mass in teleost fish
The use of compensatory growth models, transgenesis and tissue culture are described to explore the mechanisms of muscle growth in teleosts and some perspectives on future research directions are provided.
Environmental physiology of animals
The Meaning of 'Environment', Comparative, Environmental, And Evolutionary Physiology, andComparative Methods To Detect Adaptation - Mechanisms And Principles, 2nd Ed.
Biochemical Correlations of Power Development and Metabolic Fuel Preferenda in Fish Hearts
- B. Sidell, W. Driedzic, D. Stowe, I. Johnston
- Biology, Environmental SciencePhysiological Zoology
- 1 March 1987
Hearts from 16 species of fishes, including representatives of cyclostomes, elasmobranchs, and teleosts, were examined and ATP yields calculated from HK and CPT and corrected to reflect physiological conditions of the tissue suggest that catabolism of either carbohydrate or fatty acid fuels can meet maximal energetic demands of the tissues.
Animals and temperature: phenotypic and evolutionary adaptation.
This work focuses on temperature adaptation and genetic polymorphism in aquatic animals, and investigates the role of stress proteins and the stress response in the Drosophila melanogaster model.
Evolution and adaptive radiation of antarctic fishes.
Muscle development and growth: potential implications for flesh quality in fish
- I. Johnston
- Environmental Science
- 1 July 1999
Temperature during embryonic development has persistent effects on thermal acclimation capacity in zebrafish
- G. Scott, I. Johnston
- Environmental ScienceProceedings of the National Academy of Sciences
- 13 August 2012
It is shown that embryonic temperature can have dramatic and persistent effects on thermal acclimation capacity at multiple levels of biological organization and developmental plasticity may help some ectothermic organisms cope with the more variable temperatures that are expected under future climate-change scenarios.
Modelling Muscle Power Output in a Swimming Fish
Intact, electrically excitable fibre bundles were isolated from the fast and slow myotomal muscle of the bullrout and pre-stretch of active muscle provides an important mechanism for storing potential energy for release during the shortening part of the cycle.