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Genomic remnants of alpha-globin genes in the hemoglobinless antarctic icefishes.
Alone among piscine taxa, the antarctic icefishes (family Channichthyidae, suborder Notothenioidei) have evolved compensatory adaptations that maintain normal metabolic functions in the absence ofExpand
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The Oxygen Transport System in Three Species of the Boreal Fish Family Gadidae
The Arctic and Antarctic marine faunas differ by age and isolation. Fishes of the two polar regions have undergone different regional histories that have driven the physiological diversities.Expand
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Haemoglobin of the antarctic fish Pagothenia bernacchii. Amino acid sequence, oxygen equilibria and crystal structure of its carbonmonoxy derivative.
The Antarctic fish Pagothenia bernacchii has one major haemoglobin, Hb1 (over 95% of the total blood content). Hb1 has a strong alkaline Bohr effect and at low pH exhibits the reduced ligand affinityExpand
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The major adult alpha-globin gene of antarctic teleosts and its remnants in the hemoglobinless icefishes. Calibration of the mutational clock for nuclear genes.
The icefishes of the Southern Ocean (family Channichthyidae, suborder Notothenioidei) are unique among vertebrates in their inability to synthesize hemoglobin. We have shown previously (Cocca, E.,Expand
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Glucose-6-phosphate dehydrogenase from the blood cells of two antarctic teleosts: correlation with cold adaptation.
Glucose-6-phosphate dehydrogenase (G6PD) has been purified from the blood of two Antarctic teleost species, i.e., from the erythrocytes of Dissostichus mawsoni (family Nototheniidae), and from theExpand
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The evolution of thermal adaptation in polar fish.
Given the unique thermal history of the Antarctic continent, fishes of dominant suborder Notothenioidei offer a remarkable opportunity to study the physiological and biochemical characters gainedExpand
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How will fish that evolved at constant sub‐zero temperatures cope with global warming? Notothenioids as a case study
Current climate change has raised concerns over the fate of the stenothermal Antarctic marine fauna (animals that evolved to live in narrow ranges of cold temperatures). The present paper focuses onExpand
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Molecular characterization of the functionally distinct hemoglobins of the Antarctic fish Trematomus newnesi.
Antarctic fish of the family Nototheniidae usually have a single major hemoglobin (Hb 1), often a second, minor component (Hb 2, about 5% of the total), and traces of another component (Hb C, lessExpand
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Adaptation to extreme environments: structure-function relationships in Emperor penguin haemoglobin.
The functional properties of the single haemoglobin (Hb) of Emperor penguin (Aptenodytes forsteri) have been investigated at different temperatures as a function of proton and organic phosphateExpand
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The Unique Hemoglobin System of Pleuragramma antarcticum, an Antarctic Migratory Teleost
Pleuragramma antarcticum (suborder Notothenioidei, family Nototheniidae) is the most abundant fish in the antarctic shelf. This pelagic species has a circum-antarctic distribution and isExpand
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