ArticleGenome biology and evolution2013
Genome evolution in the cold: Antarctic icefish muscle transcriptome reveals selective duplications increasing mitochondrial function.
Article in Genome biology and evolution, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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25 citing papers in PubMed, 66 citations in OpenAlex.
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- How incubation temperature affects hatchling performance in reptiles: an integrative insight based on plasticity in metabolic enzyme.Current zoology · 2024Article
- Toll-Like Receptor Evolution: Does Temperature Matter?Frontiers in immunology · 2022Article
- Insights Into miRNA-mRNA Regulatory Mechanisms of Cold Adaptation inFrontiers in genetics · 2022Article
- Whole-Genome Resequencing Points to Candidate DNA Loci Affecting Body Temperature under Cold Stress in Siberian Cattle Populations.Life (Basel, Switzerland) · 2021Article
- Placental gene networks at the interface between maternal PMEnvironmental research · 2021Article
- Mitochondrial volume density and evidence for its role in adaptive divergence in response to thermal tolerance in threespine stickleback.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2021Article
- Not Frozen in the Ice: Large and Dynamic Rearrangements in the Mitochondrial Genomes of the Antarctic Fish.Genome biology and evolution · 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
- Correspondence of aCGH and long-read genome assembly for detection of copy number differences: A proof-of-concept with cichlid genomes.PloS one · 2021Article
- Structural and functional properties of Antarctic fish cytoglobins-1: Cold-reactivity in multi-ligand reactions.Computational and structural biotechnology journal · 2020Article
- The Genomic Substrate for Adaptive Radiation: Copy Number Variation across 12 Tribes of African Cichlid Species.Genome biology and evolution · 2019Article
- Network of microRNA-transcriptional factor-mRNA in cold response of turbot Scophthalmus maximus.Fish physiology and biochemistry · 2019Article
- Adaptation of Proteins to the Cold in Antarctic Fish: A Role for Methionine?Genome biology and evolution · 2019Article
- Vascular Expression of Hemoglobin Alpha in Antarctic Icefish Supports Iron Limitation as Novel Evolutionary Driver.Frontiers in physiology · 2019Article
- Draft genome assembly and transcriptome data of the icefishCommunications biology · 2019Article
- Mild cold induced thermogenesis: are BAT and skeletal muscle synergistic partners?Bioscience reports · 2017Article
- Adaptation and evolution of deep-sea scale worms (Annelida: Polynoidae): insights from transcriptome comparison with a shallow-water species.Scientific reports · 2017Article
- Embryogenesis and early skeletogenesis in the antarctic bullhead notothen, Notothenia coriiceps.Developmental dynamics : an official publication of the American Association of Anatomists · 2016Article
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7 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Antarctic notothenioids radiated over millions of years in subzero waters, evolving peculiar features, such as antifreeze glycoproteins and absence of heat shock response. Icefish, family Channichthyidae, also lack oxygen-binding proteins and display extreme modifications, including high mitochondrial densities in aerobic tissues. A genomic expansion accompanying the evolution of these fish was reported, but paucity of genomic information limits the understanding of notothenioid cold adaptation. We reconstructed and annotated the first skeletal muscle transcriptome of the icefish Chionodraco hamatus providing a new resource for icefish genomics (http://compgen.bio.unipd.it/chamatusbase/, last accessed December 12, 2012). We exploited deep sequencing of this energy-dependent tissue to test the hypothesis of selective duplication of genes involved in mitochondrial function. We developed a bioinformatic approach to univocally assign C. hamatus transcripts to orthology groups extracted from phylogenetic trees of five model species. Chionodraco hamatus duplicates were recorded for each orthology group allowing the identification of duplicated genes specific to the icefish lineage. Significantly more duplicates were found in the icefish when transcriptome data were compared with whole-genome data of model species. Indeed, duplicated genes were significantly enriched in proteins with mitochondrial localization, involved in mitochondrial function and biogenesis. In cold conditions and without oxygen-carrying proteins, energy production is challenging. The combination of high mitochondrial densities and the maintenance of duplicated genes involved in mitochondrial biogenesis and aerobic respiration might confer a selective advantage by improving oxygen diffusion and energy supply to aerobic tissues. Our results provide new insights into the genomic basis of icefish cold adaptation.
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