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_05496TRYPSIN-RELATED
Hgig_05497ADENOSINE DEAMINASE
Hgig_05498
Hgig_05499G-PROTEIN COUPLED RECEPTOR MTH-LIKE 1-RELATED
Hgig_05500PRE-MRNA SPLICING FACTOR
Hgig_05501-
Hgig_05502
Hgig_05503RIBONUCLEASE H2 SUBUNIT A
Hgig_05504MUSCLEBLIND-LIKE PROTEIN
Hgig_05505
Hgig_05506CARNITINE O-ACYLTRANSFERASE
Hgig_05507
Hgig_05508BEAT PROTEIN
Hgig_05509
Hgig_05510BEAT PROTEIN
Hgig_05511FIBROIN HEAVY CHAIN FIB-H LIKE PROTEIN
Hgig_05512
Hgig_05513THIOREDOXIN DOMAIN-CONTAINING PROTEIN 11
Hgig_05514THIOREDOXIN DOMAIN-CONTAINING PROTEIN 11
Hgig_05515BEAT PROTEIN
Hgig_05516TRANSPOSABLE ELEMENT-RELATED
Hgig_05517PROTEIN CBG27172
Hgig_05518
Hgig_05519
Hgig_05520LD44762P
Hgig_05521
Hgig_05522NUCLEAR RECEPTOR CO-REPRESSOR RELATED NCOR
Hgig_05523MACROGLOBULIN / COMPLEMENT
Hgig_05524LATE SECRETORY PATHWAY PROTEIN AVL9-RELATED
Hgig_05525LATE SECRETORY PATHWAY PROTEIN AVL9-RELATED
Hgig_05526
Hgig_05527UNCHARACTERIZED
Hgig_05528RNA EXONUCLEASE REXO1 / RECO3 FAMILY MEMBER-RELATED
Hgig_05529ATP-DEPENDENT RNA HELICASE DBP3
Hgig_05530LACTOSYLCERAMIDE 4-ALPHA-GALACTOSYLTRANSFERASE ALPHA- 1,4-GALACTOSYLTRANSFERASE
Hgig_05531CDGSH IRON-SULFUR DOMAIN-CONTAINING PROTEIN 1
Hgig_05532HIGH-AFFINITY CHOLINE TRANSPORTER 1
Hgig_05533
Hgig_05534LATE SECRETORY PATHWAY PROTEIN AVL9-RELATED
Hgig_05535F20B24.22
Hgig_05536
Hgig_05537REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_05538
Hgig_05539BIOTINIDASE-RELATED
Hgig_05540BIOTINIDASE-RELATED
Hgig_05541
Hgig_05542TRANSPOSABLE ELEMENT-RELATED
Hgig_05543RIBOSOMAL PROTEIN L5-RELATED
Hgig_05544N-TERMINAL ACETYLTRANSFERASE
Hgig_05545TOLL-INTERACTING PROTEIN
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