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:0044763single-organism cellular processGOBiological Process96expanded0.0005480.00365
GO:0099111microtubule-based transportGOBiological Process8expanded0.0005480.00365
GO:0048583regulation of response to stimulusGOBiological Process18expanded0.0005640.00374
GO:0031034myosin filament assemblyGOBiological Process3expanded0.0005750.00376
GO:0031629synaptic vesicle fusion to presynaptic active zone membraneGOBiological Process3expanded0.0005750.00376
GO:0043981histone H4-K5 acetylationGOBiological Process3expanded0.0005750.00376
GO:0099500vesicle fusion to plasma membraneGOBiological Process3expanded0.0005750.00376
GO:0009892negative regulation of metabolic processGOBiological Process12expanded0.0005970.00386
GO:0008305integrin complexGOCellular Component4expanded0.0005970.00386
GO:0098636protein complex involved in cell adhesionGOCellular Component4expanded0.0005970.00386
GO:0009056catabolic processGOBiological Process9expanded0.0006020.00388
GO:0060271cilium assemblyGOBiological Process12expanded0.0006420.00412
GO:0098805whole membraneGOCellular Component3expanded0.0006580.00421
GO:0016790thiolester hydrolase activityGOMolecular Function4expanded0.0006640.00423
GO:0007474imaginal disc-derived wing vein specificationGOBiological Process3expanded0.00070.00425
GO:0036124histone H3-K9 trimethylationGOBiological Process3expanded0.00070.00425
GO:0043696dedifferentiationGOBiological Process3expanded0.00070.00425
GO:0043697cell dedifferentiationGOBiological Process3expanded0.00070.00425
GO:0043923positive regulation by host of viral transcriptionGOBiological Process3expanded0.00070.00425
GO:0043982histone H4-K8 acetylationGOBiological Process3expanded0.00070.00425
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