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:1900110negative regulation of histone H3-K9 dimethylationGOBiological Process3expanded0.000005730.000119
GO:0012505endomembrane systemGOCellular Component13expanded0.000005550.000119
GO:0017111nucleoside-triphosphatase activityGOMolecular Function27expanded0.000005430.000119
GO:0070984SET domain bindingGOMolecular Function3expanded0.000005730.000119
GO:2000026regulation of multicellular organismal developmentGOBiological Process5expanded0.000007170.000147
GO:0006686sphingomyelin biosynthetic processGOBiological Process4expanded0.000007340.000149
GO:0048699generation of neuronsGOBiological Process4expanded0.000007840.000155
GO:0000149SNARE bindingGOMolecular Function10expanded0.000007810.000155
GO:0048519negative regulation of biological processGOBiological Process20expanded0.000008240.000162
GO:0003824catalytic activityGOMolecular Function82expanded0.000008680.000168
GO:0007292female gamete generationGOBiological Process16expanded0.000009320.000178
GO:0051181cofactor transportGOBiological Process5expanded0.000009390.000178
GO:0001725stress fiberGOCellular Component6expanded0.00001050.000195
GO:0097517contractile actin filament bundleGOCellular Component6expanded0.00001050.000195
GO:0016462pyrophosphatase activityGOMolecular Function27expanded0.00001070.000196
GO:0016817hydrolase activity, acting on acid anhydridesGOMolecular Function27expanded0.00001120.000202
GO:0016818hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydridesGOMolecular Function27expanded0.00001120.000202
GO:0090304nucleic acid metabolic processGOBiological Process21expanded0.00001180.000211
GO:0042398cellular modified amino acid biosynthetic processGOBiological Process6expanded0.0000120.000211
GO:0005856cytoskeletonGOCellular Component37expanded0.00001380.000241
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