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:0023051regulation of signalingGOBiological Process14expanded0.00009240.001
GO:0006541glutamine metabolic processGOBiological Process4expanded0.00009680.00102
GO:0006684sphingomyelin metabolic processGOBiological Process4expanded0.00009680.00102
GO:0090153regulation of sphingolipid biosynthetic processGOBiological Process4expanded0.00009680.00102
GO:1905038regulation of membrane lipid metabolic processGOBiological Process4expanded0.00009680.00102
GO:0008219cell deathGOBiological Process6expanded0.00009820.00103
GO:0009893positive regulation of metabolic processGOBiological Process14expanded0.00009820.00103
GO:0032270positive regulation of cellular protein metabolic processGOBiological Process3expanded0.0001050.00109
GO:0034654nucleobase-containing compound biosynthetic processGOBiological Process18expanded0.0001080.00111
GO:1900113negative regulation of histone H3-K9 trimethylationGOBiological Process3expanded0.0001140.00115
GO:0042382paraspecklesGOCellular Component3expanded0.0001140.00115
GO:0072487MSL complexGOCellular Component3expanded0.0001140.00115
GO:0032027myosin light chain bindingGOMolecular Function3expanded0.0001140.00115
GO:0051173positive regulation of nitrogen compound metabolic processGOBiological Process12expanded0.0001160.00116
GO:0005125cytokine activityGOMolecular Function6expanded0.0001180.00118
GO:0032917polyamine acetylationGOBiological Process2expanded0.0001290.0012
GO:0032918spermidine acetylationGOBiological Process2expanded0.0001290.0012
GO:0034775glutathione transmembrane transportGOBiological Process2expanded0.0001290.0012
GO:0035443tripeptide transmembrane transportGOBiological Process2expanded0.0001290.0012
GO:0099039sphingolipid translocationGOBiological Process2expanded0.0001290.0012
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