About Hirondellea gigas

Hirondellea gigas is a species of amphipod crustacean found in the hadal zone of the Pacific Ocean, particularly in the Mariana Trench. It is adapted to extreme deep-sea environments, living at depths exceeding 10,000 meters where pressures are immense and temperatures are near freezing. This species feeds on organic matter that sinks to the ocean floor, playing a crucial role in the deep-sea ecosystem as a scavenger. Its unique adaptations, such as a lightweight exoskeleton and specialized enzymes, allow it to survive and thrive in one of the most extreme habitats on Earth.

Classification

Animalia (Kingdom); Arthropoda (Phylum); Crustacea (Subphylum); Multicrustacea (Superclass); Malacostraca (Class); Eumalacostraca (Subclass); Peracarida (Superorder); Amphipoda (Order); Amphilochidea (Suborder); Lysianassida (Infraorder); Lysianassidira (Parvorder); Lysianassoidea (Superfamily); Hirondelleidae (Family); Hirondellea (Genus); Hirondellea gigas (Species)

Original Name

Tetronychia gigas Birstein & M. Vinogradov, 1955

Original Description/Redescription

1. Birstein J A, Vinogradov M E. Pelagicheskie gammaridy (Amphipoda, Gammaridea) Kurilo-Kamchatskoi Vpadiny[J]. Akademiya Nauk SSSR, Trudy Instituta Okeanologii, 1955, 12: 219-257. (Birstein et al., 1955)

Distribution/Locality

Philippine Trench from Philippine Sea, Mariana Trench from North Pacific Ocean and Kuril-Kamchatka Trench


Basic Information
SpeciesPhylumCommon NameEcosystemDepthHabitatNCBI Taxonomy ID
Hirondellea gigasArthropoda-Deep sea6,800-11,000Mariana Trench in the northwestern Pacific Ocean1518452

Genome Assembly Information
Genome AssemblyGenome SizeAssembly levelReleased yearWGS accessionSubmitterBioProjectBUSCO completeness (%)Scaffold/Contig N50 (kb)GC content (%)Repeat Rate (%)Gene Number
-13.92GbChromosome2025CNA0142381-CNP000537489.34 458,700/466.138.872.7527,881

References
TitleJournalPubmed ID
The amphipod genome reveals population dynamics and adaptations to hadal environmentCell40054448

Gene Information

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Gene IDDescription
Hgig_16947
Hgig_16948
Hgig_16949ORIGIN RECOGNITION COMPLEX SUBUNIT 5
Hgig_16950REELIN
Hgig_16951
Hgig_16952POTASSIUM CHANNEL, SUBFAMILY K
Hgig_16953POTASSIUM CHANNEL, SUBFAMILY K
Hgig_16954DISCOIDIN, CUB, EGF, LAMININ , AND ZINC METALLOPROTEASE DOMAIN CONTAINING
Hgig_16955
Hgig_16956SOLUTE CARRIER FAMILY 35 MEMBER B
Hgig_16957
Hgig_16958
Hgig_16959BEAT PROTEIN
Hgig_16960
Hgig_16961
Hgig_16962
Hgig_16963
Hgig_16964
Hgig_16965RIBONUCLEASE H1
Hgig_16966DYSTROBREVIN BINDING PROTEIN 1 DYSBINDIN
Hgig_16967EXCISION REPAIR CROSS-COMPLEMENTING 1 ERCC1
Hgig_16968NADH DEHYDROGENASE UBIQUINONE IRON-SULFUR PROTEIN 8, MITOCHONDRIAL
Hgig_16969
Hgig_16970SOLUTE CARRIER FAMILY 12, CATION COTRANSPORTERS
Hgig_16971CASPASE-ACTIVATED DNASE
Hgig_16972CYPHER, ISOFORM B
Hgig_16973PROTEIN LIN-28
Hgig_16974SODIUM/CHLORIDE DEPENDENT TRANSPORTER
Hgig_16975SODIUM/CHLORIDE DEPENDENT TRANSPORTER
Hgig_16976SODIUM/CHLORIDE DEPENDENT TRANSPORTER
Hgig_16977TRANSPOSABLE ELEMENT-RELATED
Hgig_16978PROTEIN SIDEKICK
Hgig_16979
Hgig_16980ADAM A DISINTEGRIN AND METALLOPROTEASE DOMAIN
Hgig_16981CYTOCHROME B561-RELATED
Hgig_16982METALLOPROTEASE TLDD
Hgig_16983LD35087P
Hgig_16984UNCHARACTERIZED
Hgig_16985
Hgig_16986PROTEIN CBG27172
Hgig_16987PROTEIN CBG27172
Hgig_16988PROTEIN CBG27172
Hgig_16989
Hgig_16990
Hgig_16991SELENOPROTEIN S
Hgig_16992GTP-BINDING PROTEIN-RELATED
Hgig_16993
Hgig_16994GTP-BINDING PROTEIN-RELATED
Hgig_16995MAP/MICROTUBULE AFFINITY-REGULATING KINASE
Hgig_16996ATF6, ISOFORM C
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