ArticleGenome biology2014
The genome sequence of the Antarctic bullhead notothen reveals evolutionary adaptations to a cold environment.
Article in Genome biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.
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47 citing papers in PubMed, 103 citations in OpenAlex.
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- Chromosome-level genome assembly and annotation of the Antarctica whitefin plunderfish Pogonophryne albipinna.Scientific data · 2023Article
- Temperature activated transient receptor potential ion channels from Antarctic fishes.Open biology · 2023Article
- Genomics of cold adaptations in the Antarctic notothenioid fish radiation.Nature communications · 2023Article
- Positive and Relaxed Selective Pressures Have Both Strongly Influenced the Evolution of Cryonotothenioid Fishes during Their Radiation in the Freezing Southern Ocean.Genome biology and evolution · 2023Article
- Signatures of selection in indigenous Chinese cattle genomes reveal adaptive genes and genetic variations to cold climate.Journal of animal science · 2023Article
- Novel genome sequence of Chinese cavefish (Triplophysa rosa) reveals pervasive relaxation of natural selection in cavefish genomes.Molecular ecology · 2022Article
- Population genomics of an icefish reveals mechanisms of glacier-driven adaptive radiation in Antarctic notothenioids.BMC biology · 2022Article
- Genomic Survey and Microsatellite Marker Investigation of Patagonian Moray Cod (Animals : an open access journal from MDPI · 2022Article
- Facilitating population genomics of non-model organisms through optimized experimental design for reduced representation sequencing.BMC genomics · 2021Article
- Genome survey and microsatellite motif identification of Pogonophryne albipinna.Bioscience reports · 2021Article
- Evolution of chaperome gene expression and regulatory elements in the antarctic notothenioid fishes.Heredity · 2021Article
- Cold Adaptation in Antarctic Notothenioids: Comparative Transcriptomics Reveals Novel Insights in the Peculiar Role of Gills and Highlights Signatures of Cobalamin Deficiency.International journal of molecular sciences · 2021Article
- Characterization of the hypoxia-inducible factor-1 pathway in hearts of Antarctic notothenioid fishes.Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology · 2020Article
- The complete mitochondrial genome of the Antarctic marbled rockcod,Mitochondrial DNA. Part B, Resources · 2020Article
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Authors and funding
14 authors at 8 institutions in 3 countries.
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Abstract
backgroundAntarctic fish have adapted to the freezing waters of the Southern Ocean. Representative adaptations to this harsh environment include a constitutive heat shock response and the evolution of an antifreeze protein in the blood. Despite their adaptations to the cold, genome-wide studies have not yet been performed on these fish due to the lack of a sequenced genome. Notothenia coriiceps, the Antarctic bullhead notothen, is an endemic teleost fish with a circumpolar distribution and makes a good model to understand the genomic adaptations to constant sub-zero temperatures.
resultsWe provide the draft genome sequence and annotation for N. coriiceps. Comparative genome-wide analysis with other fish genomes shows that mitochondrial proteins and hemoglobin evolved rapidly. Transcriptome analysis of thermal stress responses find alternative response mechanisms for evolution strategies in a cold environment. Loss of the phosphorylation-dependent sumoylation motif in heat shock factor 1 suggests that the heat shock response evolved into a simple and rapid phosphorylation-independent regulatory mechanism. Rapidly evolved hemoglobin and the induction of a heat shock response in the blood may support the efficient supply of oxygen to cold-adapted mitochondria.
conclusionsOur data and analysis suggest that evolutionary strategies in efficient aerobic cellular respiration are controlled by hemoglobin and mitochondrial proteins, which may be important for the adaptation of Antarctic fish to their environment. The use of genome data from the Antarctic endemic fish provides an invaluable resource providing evidence of evolutionary adaptation and can be applied to other studies of Antarctic fish.
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