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:0044447axoneme partGOCellular Component8expanded6.81E-090.00000029
GO:0051239regulation of multicellular organismal processGOBiological Process5expanded1.25E-080.000000519
GO:0042440pigment metabolic processGOBiological Process11expanded1.47E-080.000000598
GO:0044289contact siteGOCellular Component4expanded1.63E-080.000000631
GO:0004145diamine N-acetyltransferase activityGOMolecular Function4expanded1.63E-080.000000631
GO:0044260cellular macromolecule metabolic processGOBiological Process31expanded2.88E-080.00000109
GO:0016835carbon-oxygen lyase activityGOMolecular Function10expanded4.37E-080.00000162
GO:0006542glutamine biosynthetic processGOBiological Process4expanded8.04E-080.00000281
GO:0004356glutamate-ammonia ligase activityGOMolecular Function4expanded8.04E-080.00000281
GO:0016211ammonia ligase activityGOMolecular Function4expanded8.04E-080.00000281
GO:1905371ceramide phosphoethanolamine metabolic processGOBiological Process4expanded0.0000002380.00000771
GO:1905373ceramide phosphoethanolamine biosynthetic processGOBiological Process4expanded0.0000002380.00000771
GO:1905799regulation of intraciliary retrograde transportGOBiological Process4expanded0.0000002380.00000771
GO:0016880acid-ammonia (or amide) ligase activityGOMolecular Function4expanded0.0000002380.00000771
GO:0042073intraciliary transportGOBiological Process8expanded0.0000003040.00000966
GO:0051240positive regulation of multicellular organismal processGOBiological Process1expanded0.0000003920.0000122
GO:0050793regulation of developmental processGOBiological Process6expanded0.0000004770.0000146
GO:0006139nucleobase-containing compound metabolic processGOBiological Process21expanded0.0000005160.0000155
GO:0019538protein metabolic processGOBiological Process21expanded0.0000006550.0000194
GO:0048477oogenesisGOBiological Process16expanded0.0000009690.000028
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