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.


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 completenessGene Number
-13.92GbChromosome2025CNA0142381-CNP000537489.34%27,881

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

Gene Information

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Gene IDDescription
Hgig_05296
Hgig_05297PROTEIN CBG26694
Hgig_05298FIBRINOGEN/TENASCIN/ANGIOPOEITIN
Hgig_05299REPLICATION FACTOR C / DNA POLYMERASE III GAMMA-TAU SUBUNIT
Hgig_05300
Hgig_05301RNA POLYMERASE II-ASSOCIATED FACTOR 1 HOMOLOG
Hgig_05302TRANSPOSASE-RELATED
Hgig_05303SERINE-THREONINE PROTEIN KINASE
Hgig_05304
Hgig_05305
Hgig_05306
Hgig_05307G-PROTEIN COUPLED RECEPTOR MTH-LIKE 1-RELATED
Hgig_05308G-PROTEIN COUPLED RECEPTOR MTH-LIKE 1-RELATED
Hgig_05309
Hgig_05310N-ACETYLGALACTOSAMINYLTRANSFERASE
Hgig_05311
Hgig_05312PROTEIN SIDEKICK
Hgig_05313RIBOSOME RECYCLING FACTOR
Hgig_05314REVERSE TRANSCRIPTASE
Hgig_05315
Hgig_05316PROTEASE M14 CARBOXYPEPTIDASE
Hgig_05317G-PROTEIN COUPLED RECEPTOR MTH-LIKE 1-RELATED
Hgig_05318G-PROTEIN COUPLED RECEPTOR MTH-LIKE 1-RELATED
Hgig_05319PROTEIN CBG27172
Hgig_05320
Hgig_05321
Hgig_05322
Hgig_05323MKRN2 OPPOSITE STRAND PROTEIN
Hgig_05324CANCER-RELATED NUCLEOSIDE-TRIPHOSPHATASE
Hgig_05325ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_05326
Hgig_05327PEPTIDYL-PROLYL CIS-TRANS ISOMERASE-RELATED
Hgig_05328LARGE SUBUNIT GTPASE 1 HOMOLOG-RELATED
Hgig_05329
Hgig_05330
Hgig_05331
Hgig_05332
Hgig_05333
Hgig_05334PHOSPHATIDYLINOSITOL-GLYCAN BIOSYNTHESIS CLASS X PROTEIN
Hgig_05335EPIDIDYMAL MEMBRANE PROTEIN E9-RELATED
Hgig_05336ARMADILLO REPEAT-CONTAINING PROTEIN 8
Hgig_05337
Hgig_05338ARMADILLO REPEAT-CONTAINING PROTEIN 8
Hgig_05339
Hgig_05340POLY A POLYMERASE CID PAP -RELATED
Hgig_05341
Hgig_05342
Hgig_05343UNCHARACTERIZED
Hgig_05344
Hgig_05345SIDESTEP PROTEIN
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