Vertebrates without Erythrocytes and Blood Pigment

  title={Vertebrates without Erythrocytes and Blood Pigment},
  author={Johan T. Ruud},
Collaborative Research: Linkages among Mitochondrial Form, Function and Thermal Tolerance of Antarctic Notothenioid Fishes
Sequence of the Mb gene from the icefish, Dacodraco hunteri, contains a duplicated TATA box in the promoter that is absent from the promoter of Chionod rastrospinosus, an icefish species known to express Mb.
Physiological and evolutionary implications of the pattern of expression of oxygen-binding hemoproteins in Antarctic notothenioid fishes
This work presents a new approach to the determination of Hematocrit and Hemoglobin Determination using a beads-based approach and shows clear improvements in the accuracy and efficiency of this method compared with previous efforts.
A genomic fossil reveals key steps in hemoglobin loss by the antarctic icefishes.
Surprisingly, a phylogenetically derived icefish species, Neopagetopsis ionah, possesses a complete, but nonfunctional, adult alphabeta-globin complex, which is concluded to be a "genomic fossil" that reveals key intermediate steps on the pathway to loss of hemoglobin expression by all ice fish species.
Comparison of Arctic and Antarctic teleost haemoglobins: primary structure, function and phytogeny
The evolutionary history of the α and β globins of Antarctic and Arctic haemoglobins was analysed, under the assumption of the molecular-clock hypothesis, as a basis for reconstructing the phylogenetic relationships between species.
Antarctic notothenioid fish: what are the future consequences of ‘losses’ and ‘gains’ acquired during long-term evolution at cold and stable temperatures?
Antarctic notothenioid fishes have undergone biochemical losses and gains during long-term adaptation to cold; the processes underlying thermal tolerance and acclimation capacity of these cold-specialized animals are examined in the context of climate change.
Genome Evolution in the Cold: Antarctic Icefish Muscle Transcriptome Reveals Selective Duplications Increasing Mitochondrial Function
This work reconstructed and annotated the first skeletal muscle transcriptome of the icefish Chionodraco hamatus providing a new resource for icefish genomics and develops a bioinformatic approach to univocally assign C. hamatus transcripts to orthology groups extracted from phylogenetic trees of model species.
Functional and comparative studies of haemoproteins from polar fishes
The structural and functional characterisation of the hemolysate of L. morhua Hb polymerisation showed pH- and concentration-dependence in the deoxygenate state in vitro, suggesting that polymerisation may be an adaptive response to extreme and stressful environmental conditions.
The unique mitochondrial form and function of Antarctic channichthyid icefishes.
The proliferation of icefish's mitochondrial membranes provides an optimal conduit for the intracellular diffusion of oxygen and compensates for the loss of Hb and Mb.
Blood Lipids in Antarctic and in Temperate-Water Fish Species
measures of membrane fluidity inferred from the fluorescence anisotropy of DPH indicated that the membranes from Antarctic fish were more fluid at any measured temperature than those obtained from fish living in temperate waters.
The phylogeny of polar fishes and the structure, function and molecular evolution of hemoglobin
This review summarizes the current knowledge on molecular structure, biological function and phylogeny of hemoglobins of fish species living in both polar habitats but having different evolutionary histories.