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_18247N-ACETYLTRANSFERASE 6
Hgig_18248
Hgig_18249
Hgig_18250
Hgig_18251IONOTROPIC RECEPTOR 20A-RELATED
Hgig_18252IONOTROPIC GLUTAMATE RECEPTOR
Hgig_18253IONOTROPIC RECEPTOR 20A-RELATED
Hgig_18254IONOTROPIC GLUTAMATE RECEPTOR
Hgig_18255
Hgig_18256SPLICING FACTOR (PAD-1), PUTATIVE (AFU_ORTHOLOGUE AFUA_1G15810)-RELATED
Hgig_18257
Hgig_18258SPLICING FACTOR (PAD-1), PUTATIVE (AFU_ORTHOLOGUE AFUA_1G15810)-RELATED
Hgig_18259
Hgig_18260
Hgig_18261SI:CH211-189E2.2
Hgig_18262
Hgig_18263
Hgig_18264CALCIUM-TRANSPORTING ATPASE
Hgig_18265REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_18266SEPTIN
Hgig_18267ANKYRIN REPEAT DOMAIN-CONTAINING PROTEIN 12
Hgig_18268PHOSPHATIDYLINOSITOL 4-KINASE TYPE-II
Hgig_182694-HYDROXYPHENYLPYRUVATE DIOXYGENASE
Hgig_18270
Hgig_18271CALMODULIN-BINDING TRANSCRIPTION ACTIVATOR CAMTA
Hgig_18272
Hgig_18273CALMODULIN-BINDING TRANSCRIPTION ACTIVATOR CAMTA
Hgig_18274
Hgig_18275REVERSE TRANSCRIPTASE
Hgig_18276
Hgig_18277
Hgig_18278DOUBLE-STRAND BREAK REPAIR PROTEIN MRE11
Hgig_18279DOUBLE-STRAND BREAK REPAIR PROTEIN MRE11
Hgig_18280SD08549P
Hgig_18281SD08549P
Hgig_18282REPLICATION FACTOR C / DNA POLYMERASE III GAMMA-TAU SUBUNIT
Hgig_182831-ACYLGLYCEROL-3-PHOSPHATE ACYLTRANSFERASE-RELATED
Hgig_18284
Hgig_18285STERILE ALPHA MOTIF DOMAIN CONTAINING PROTEIN 4-RELATED
Hgig_18286SALVADOR FAMILY WW DOMAIN-CONTAINING PROTEIN 1
Hgig_18287DNA REPLICATION REGULATOR DPB11-RELATED
Hgig_18288PROTEIN CBG24663
Hgig_18289HEAT SHOCK PROTEIN 90 FAMILY MEMBER
Hgig_18290HEAT SHOCK PROTEIN 90 FAMILY MEMBER
Hgig_18291KRAB AND ZINC FINGER DOMAIN-CONTAINING
Hgig_18292ALKALINE PHOSPHATASE
Hgig_18293
Hgig_18294
Hgig_18295DAUER UP-REGULATED-RELATED
Hgig_18296
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