About Ilyophis brunneus

Ilyophis brunneus commonly known as the muddy arrowtooth eel, is a species of cutthroat eel in the family Synaphobranchidae. It is found in deep-sea environments worldwide at depths exceeding 1,000 meters. This species is characterized by its elongated body and can grow up to 160 cm in length. As a benthic predator, it plays a significant role in deep-sea ecosystems by feeding on smaller fish and invertebrates, contributing to the trophic dynamics of its habitat.

Classification

Animalia (Kingdom); Chordata (Phylum); Vertebrata (Subphylum); Gnathostomata (Infraphylum); Osteichthyes (Parvphylum); Actinopterygii (Gigaclass); Actinopteri (Superclass); Teleostei (Class); Anguilliformes (Order); Synaphobranchidae (Family); Ilyophinae (Subfamily); Ilyophis (Genus); Ilyophis brunneus (Species)

Original Name

Ilyophis brunneus Gilbert, 1891

Key Reference Paper

1. Gilbert C H. Descriptions of apodal fishes from the tropical Pacific[M]. US Government Printing Office, 1891. (Gilbert et al., 1891)

Distribution

Gulf of Mexico, New Zealand, North Atlantic Ocean, South Africa. Found in the seamounts and knolls of Canadian Atlantic waters. Found at depths of 450- 3120 m


Basic Information
SpeciesPhylumCommon NameEcosystemDepthHabitatNCBI Taxonomy ID
Ilyophis brunneusChordataIlyophis sp. 2 JC-2022, Muddy arrowtooth eel (MAE)Deep sea3,500Mariana Trench (11.65369°N,138.62139°E)2920202

Genome Assembly Information
Genome AssemblyGenome SizeAssembly levelReleased yearWGS accessionSubmitterBioProjectBUSCO completeness (%)Scaffold/Contig N50 (kb)GC content (%)Repeat Rate (%)Gene Number
ASM2270252v11.5GbChromosome2022JAKUDJ01Chinese Academy of Sciences, ChinaPRJNA79246594.30 115,310/2,76042.0948.4121,632

References
TitleJournalPubmed ID
Pseudo-chromosome-length genome assembly for a deep-sea eel Ilyophis brunneus sheds light on the deep-sea adaptationScience China Life Sciences36648612

Results of comparison between Ilyophis brunneus and its nearshore relatives from the paper (Chen et al., 2023)

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Annotation IDDescriptionTypeSubtypeGeneRatioEvolution TypeP-valueQ-value
GO:0035803egg coat formationGOBiological Process13expanded2.00E-233.50E-20
GO:0035804structural constituent of egg coatGOMolecular Function12expanded4.42E-233.86E-20
GO:00038746-pyruvoyltetrahydropterin synthase activityGOMolecular Function10expanded2.94E-201.71E-17
GO:0016838carbon-oxygen lyase activity, acting on phosphatesGOMolecular Function10expanded3.19E-191.39E-16
GO:0007339binding of sperm to zona pellucidaGOBiological Process13expanded6.33E-192.21E-16
GO:0006728pteridine biosynthetic processGOBiological Process10expanded1.89E-185.51E-16
GO:0035036sperm-egg recognitionGOBiological Process13expanded3.65E-189.11E-16
GO:0030286dynein complexGOCellular Component15expanded3.85E-168.40E-14
GO:0019889pteridine metabolic processGOBiological Process10expanded5.27E-161.02E-13
GO:0009988cell-cell recognitionGOBiological Process13expanded1.88E-153.27E-13
GO:0006729tetrahydrobiopterin biosynthetic processGOBiological Process10expanded2.45E-153.88E-13
GO:0046146tetrahydrobiopterin metabolic processGOBiological Process10expanded9.13E-151.33E-12
GO:0042559pteridine-containing compound biosynthetic processGOBiological Process10expanded2.09E-122.61E-10
GO:0030372high molecular weight B cell growth factor receptor bindingGOMolecular Function6expanded2.02E-122.61E-10
GO:0044699single-organism processGOBiological Process138expanded2.95E-123.44E-10
GO:0005488bindingGOMolecular Function142expanded3.90E-124.26E-10
GO:0045505dynein intermediate chain bindingGOMolecular Function9expanded6.92E-127.11E-10
GO:0003774motor activityGOMolecular Function16expanded9.81E-129.51E-10
GO:0007338single fertilizationGOBiological Process13expanded1.26E-101.15E-08
GO:0005858axonemal dynein complexGOCellular Component8expanded1.50E-101.31E-08
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