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

(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_17097ANKYRIN REPEAT-CONTAINING
Hgig_17098
Hgig_17099
Hgig_17100
Hgig_17101
Hgig_17102ZINC FINGER BED DOMAIN-CONTAINING PROTEIN 4
Hgig_17103
Hgig_17104
Hgig_17105
Hgig_17106
Hgig_17107
Hgig_17108
Hgig_17109
Hgig_17110
Hgig_17111
Hgig_17112
Hgig_17113
Hgig_17114
Hgig_17115SPLICING FACTOR YJU2
Hgig_17116
Hgig_17117TETHER CONTAINING UBX DOMAIN FOR GLUT4
Hgig_17118AUTOPHAGY PROTEIN 5
Hgig_17119
Hgig_17120
Hgig_17121
Hgig_17122TYROSINE-PROTEIN KINASE RECEPTOR
Hgig_17123
Hgig_17124
Hgig_17125
Hgig_17126
Hgig_17127
Hgig_17128
Hgig_17129IONOTROPIC RECEPTOR 20A-RELATED
Hgig_17130
Hgig_17131-
Hgig_17132
Hgig_17133TRANSPOSON
Hgig_17134-
Hgig_17135SOLUTE CARRIER FAMILY 12, CATION COTRANSPORTERS
Hgig_17136SOLUTE CARRIER FAMILY 12, CATION COTRANSPORTERS
Hgig_17137BEAT PROTEIN
Hgig_17138BEAT PROTEIN
Hgig_17139
Hgig_17140HEAT SHOCK PROTEIN HSP-12.2-RELATED
Hgig_17141HEAT SHOCK PROTEIN HSP-12.2-RELATED
Hgig_17142IONOTROPIC RECEPTOR 20A-RELATED
Hgig_17143HISTONE H3
Hgig_17144
Hgig_17145HISTONE H3
Hgig_17146HISTONE H3
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