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Showing 1 to 11 of 11 for “"Notothenioids"”.
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The influence of environmental temperature on the thermal tolerance of Antarctic notothenioid fishes
… in the Southern Ocean, today the Antarctic notothenioids are largely divided by their geographic distributions between three regionally endemic ichthyofaunas in the high-latitude High Antarctic Zone (HAZ), the lower-latitude Seasonal Pack-ice Zone, and cold-temperate waters of southern South …
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Language like behavior in protein secondary structure and analysis of mitochondrial genomes and transposable elements in Antarctic notothenioid fishes
… role of components of the genomes of Antarctic notothenioids: mitochondrial genomes and transposable elements (TEs) in their adaptation to extreme cold temperatures of Southern Ocean. For mitochondrial genomes, I assembled and annotated five Antarctic notothenioid genomes, including four …
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Behavioral freeze avoidance in an Antarctic fish
… waters of the high-latitude Southern Ocean. Most notothenioids avoid freezing primarily by the action of their blood-borne antifreeze glycoproteins (AFGPs). AFGPs arrest the growth of environmental ice crystals that enter the fish, thereby preserving the body fluids in liquid state. AFGPs are …
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Antifreeze Glycoproteins of Two Unrelated Polar Fishes: Gene Structure, Organization and Evolution
… indicate the near-identical AFGPs of Antarctic notothenioids and northern cods evolved independently.
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Analysis of the antifreeze glycoprotein containing genomic locus in the Antarctic notothenioid fish dissostichus mawsoni
… AFGP concentrations observed in the Antarctic notothenioids. Besides the AFGP genes, the locus contains three AFGP/TLP chimeric genes and two TLP genes. Bayesian and Maximum Likelihood phylogenetic reconstructions of the AFGP, TLP, and AFGP/TLP chimeric coding regions indicated that the AFGP …
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Comparative antifreeze trait analyses of Antarctic and temperate sister species pairs shed light on tempo of adaptive trait loss under relaxed selection
… species since the AFGP gene evolved only once in notothenioids. We determined the evolutionary status of the AFGP trait in the South American notothenioid Harpagifer bispinis and compared it with its Antarctic sister species Harpagifer antarcticus at the genotypic and phenotypic levels. We found …
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Effects of Hyperoxia on Thermal Tolerance and Indicators of Hypoxic Stress in Antarctic Fishes That Differ in Expression of Oxygen-Binding Proteins
… maxima (CT<sub>MAX</sub>) than red-blooded notothenioids and that there is a positive correlation between CT<sub>MAX</sub> and hematocrit, indicating that oxygen-carrying capacity may contribute to thermal tolerance. I tested the hypothesis that the lower CT<sub>MAX</sub> of icefishes is …
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Investigating the larval/juvenile notothenioid fish species assemblage in Mcmurdo Sound, Antarctica using phylogenetic reconstruction
… All of our specimens (100%) were identified as notothenioids, closely matching the adult fauna which is 91% notothenioid. Our specimens were overwhelming nototheniid (94% abundance), compared to the 50% nototheniid abundance that is seen in adults, indicating that our data suffer from sampling …
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Comparative and population genomics of secondarily temperate Paranotothenia angustata, New Zealand black cod
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms
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Comparative and evolutionary genomics of secondarily temperate adaptation in a non-Antarctic icefish
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01
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Effect of environmental temperature on Antarctic fish antifreeze protein activity and concentration
… of the late Eocene fish fauna to go extinct. Notothenioids have two types of AFPs: antifreeze glycoproteins (AFGPs) that are comprised of glycosylated tripeptide repeats of various sizes from large size isoforms with numerous repeats to small size isoforms with relatively few tripeptide repeat …