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_01446
Hgig_01447
Hgig_01448NEPHRIN
Hgig_01449ACYLPHOSPHATASE
Hgig_01450
Hgig_01451
Hgig_01452REVERSE TRANSCRIPTASE
Hgig_01453ACYLPHOSPHATASE
Hgig_01454-
Hgig_01455-
Hgig_01456CHITIN BINDING PERITROPHIN-A
Hgig_01457
Hgig_01458ATP-DEPENDENT CLP PROTEASE
Hgig_01459VACUOLAR IMPORT AND DEGRADATION PROTEIN 24
Hgig_01460CHITIN BINDING PERITROPHIN-A
Hgig_01461
Hgig_01462ENDONUCLEASE-RELATED
Hgig_01463
Hgig_01464
Hgig_01465PROTEIN CBG11604
Hgig_01466LD44762P
Hgig_01467
Hgig_01468NUCLEAR AUTOANTIGENIC SPERM PROTEIN NASP -RELATED
Hgig_01469MYOTUBULARIN-RELATED
Hgig_01470PROTEIN KINASE C, MU
Hgig_01471CYCLIC AMP RESPONSE ELEMENT-BINDING PROTEIN A
Hgig_01472CROSSVEINLESS 2
Hgig_01473SMG-7 SUPPRESSOR WITH MORPHOLOGICAL EFFECT ON GENITALIA PROTEIN 7
Hgig_01474SMG-7 SUPPRESSOR WITH MORPHOLOGICAL EFFECT ON GENITALIA PROTEIN 7
Hgig_01475
Hgig_01476SMG-7 SUPPRESSOR WITH MORPHOLOGICAL EFFECT ON GENITALIA PROTEIN 7
Hgig_01477
Hgig_01478
Hgig_01479MYELOID LEUKEMIA FACTOR
Hgig_01480
Hgig_01481
Hgig_01482
Hgig_01483ALKALINE PHOSPHATASE
Hgig_01484ENDO-1,4-BETA-GLUCANASE
Hgig_01485ANK_REP_REGION DOMAIN-CONTAINING PROTEIN
Hgig_01486
Hgig_01487RIBITOL-5-PHOSPHATE XYLOSYLTRANSFERASE 1
Hgig_01488RIBITOL-5-PHOSPHATE XYLOSYLTRANSFERASE 1
Hgig_01489SYNTENIN RELATED
Hgig_01490
Hgig_01491
Hgig_01492POTE ANKYRIN DOMAIN
Hgig_01493
Hgig_01494PROTEIN CBG27172
Hgig_01495
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