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_21297
Hgig_21298MALONYL-COA ACP TRANSACYLASE, ACP-BINDING
Hgig_21299
Hgig_21300
Hgig_21301
Hgig_21302
Hgig_21303
Hgig_21304RNA RECOGNITION MOTIF RRM DOMAIN CONTAINING PROTEIN
Hgig_21305RIBONUCLEASE H1
Hgig_21306TRANSPOSABLE ELEMENT-RELATED
Hgig_21307RNA RECOGNITION MOTIF RRM DOMAIN CONTAINING PROTEIN
Hgig_21308RNA RECOGNITION MOTIF RRM DOMAIN CONTAINING PROTEIN
Hgig_21309
Hgig_21310RNA RECOGNITION MOTIF RRM DOMAIN CONTAINING PROTEIN
Hgig_21311GERANYLGERANYL TRANSFERASE TYPE BETA SUBUNIT
Hgig_21312UNCHARACTERIZED
Hgig_21313CHITIN BINDING PERITROPHIN-A
Hgig_21314CHITIN BINDING PERITROPHIN-A
Hgig_21315
Hgig_21316CHITIN BINDING PERITROPHIN-A
Hgig_21317
Hgig_21318CHITIN BINDING PERITROPHIN-A
Hgig_21319CHITIN BINDING PERITROPHIN-A
Hgig_21320
Hgig_21321
Hgig_21322
Hgig_21323
Hgig_21324
Hgig_21325RCC1 DOMAIN-CONTAINING PROTEIN 1
Hgig_21326WD40 REPEAT PROTEIN 12, 37
Hgig_21327RCC1 DOMAIN-CONTAINING PROTEIN 1
Hgig_21328PROTEIN CBG27172
Hgig_21329
Hgig_21330
Hgig_21331ZGC:174356
Hgig_21332OXIDOREDUCTASE, SHORT-CHAIN DEHYDROGENASE/REDUCTASE FAMILY (AFU_ORTHOLOGUE AFUA_5G02870)
Hgig_21333ARMADILLO SEGMENT POLARITY PROTEIN
Hgig_21334OXIDOREDUCTASE, SHORT-CHAIN DEHYDROGENASE/REDUCTASE FAMILY (AFU_ORTHOLOGUE AFUA_5G02870)
Hgig_21335ZGC:174356
Hgig_21336UNCHARACTERIZED
Hgig_21337CHARGED MULTIVESICULAR BODY PROTEIN
Hgig_21338
Hgig_21339
Hgig_21340
Hgig_21341TRANSCRIPTION INITIATION FACTOR TFIID
Hgig_21342BIFUNCTIONAL ASPARTATE AMINOTRANSFERASE AND GLUTAMATE/ASPARTATE-PREPHENATE AMINOTRANSFERASE-RELATED
Hgig_21343BIFUNCTIONAL ASPARTATE AMINOTRANSFERASE AND GLUTAMATE/ASPARTATE-PREPHENATE AMINOTRANSFERASE-RELATED
Hgig_21344
Hgig_21345
Hgig_21346
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