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_17347TRANSPOSABLE ELEMENT-RELATED
Hgig_17348
Hgig_17349
Hgig_17350
Hgig_17351SIDESTEP PROTEIN
Hgig_17352FILAMIN/GPBP-INTERACTING PROTEIN
Hgig_17353
Hgig_17354FILAMIN/GPBP-INTERACTING PROTEIN
Hgig_17355SIDESTEP PROTEIN
Hgig_17356SIDESTEP PROTEIN
Hgig_17357SIDESTEP PROTEIN
Hgig_17358SIDESTEP PROTEIN
Hgig_17359
Hgig_17360
Hgig_17361
Hgig_17362
Hgig_17363MEMBRALIN/KINETOCHORE PROTEIN NUF2
Hgig_17364
Hgig_17365UNCHARACTERIZED
Hgig_17366NUCLEAR PORE COMPLEX PROTEIN NUP93 NUCLEOPORIN NUP93 DEAD EYE PROTEIN
Hgig_17367
Hgig_17368
Hgig_17369LD44813P
Hgig_17370NEUROLIGIN
Hgig_17371
Hgig_17372GNAT FAMILY N-ACETYLTRANSFERASE
Hgig_17373DYNAMIN
Hgig_17374LD24308P
Hgig_17375PHOSPHATIDYLINOSITOL GLYCAN-RELATED
Hgig_17376AAA DOMAIN-CONTAINING
Hgig_17377
Hgig_17378
Hgig_17379N-ACETYLATED-ALPHA-LINKED ACIDIC DIPEPTIDASE
Hgig_17380BASIC HELIX-LOOP-HELIX TRANSCRIPTION FACTOR, TWIST
Hgig_17381BASIC HELIX-LOOP-HELIX TRANSCRIPTION FACTOR, TWIST
Hgig_17382
Hgig_17383GRAM DOMAIN-CONTAINING PROTEIN 4
Hgig_17384DEFECTIVE PROBOSCIS EXTENSION RESPONSE DPR -RELATED
Hgig_17385CTX-RELATED TYPE I TRANSMEMBRANE PROTEIN
Hgig_17386
Hgig_17387
Hgig_17388
Hgig_17389
Hgig_17390
Hgig_17391
Hgig_17392
Hgig_17393
Hgig_17394
Hgig_17395
Hgig_17396MITOCHONDRIAL IMPORT INNER MEMBRANE TRANSLOCASE SUBUNIT TIM-17
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