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_20997BASIGIN RELATED
Hgig_20998TRANSPOSASE-RELATED
Hgig_20999UNCHARACTERIZED
Hgig_21000
Hgig_21001
Hgig_21002-
Hgig_21003NEURON-DERIVED NEUROTROPHIC FACTOR
Hgig_21004
Hgig_21005IONOTROPIC RECEPTOR 20A-RELATED
Hgig_21006
Hgig_21007
Hgig_21008
Hgig_21009UBIQUITIN CARBOXYL-TERMINAL HYDROLASE
Hgig_21010
Hgig_21011
Hgig_21012
Hgig_21013
Hgig_21014GERANYLGERANYL PYROPHOSPHATE SYNTHASE
Hgig_2101539S RIBOSOMAL PROTEIN L53, MITOCHONDRIAL
Hgig_21016
Hgig_21017
Hgig_21018
Hgig_21019PROTEIN PHOSPHATASE 1 REGULATORY SUBUNIT 12
Hgig_21020PROTEIN PHOSPHATASE 1 REGULATORY SUBUNIT 12
Hgig_21021PROTEIN CBG27172
Hgig_21022REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_21023CONSERVED OLIGOMERIC GOLGI COMPLEX SUBUNIT 4
Hgig_21024BRG-1 ASSOCIATED FACTOR 250 BAF250
Hgig_21025
Hgig_21026MITOCHONDRIAL PEPTIDE METHIONINE SULFOXIDE REDUCTASE
Hgig_21027LON PROTEASE
Hgig_21028
Hgig_21029SHORT-CHAIN DEHYDROGENASE/REDUCTASE
Hgig_21030SHORT-CHAIN DEHYDROGENASE/REDUCTASE
Hgig_21031REVERSE TRANSCRIPTASES
Hgig_21032PROTEIN SCAI
Hgig_21033DOLICHYL-PHOSPHATE-MANNOSE--PROTEIN MANNOSYLTRANSFERASE
Hgig_210344.1 G PROTEIN
Hgig_21035
Hgig_21036TRNA-DIHYDROURIDINE(47) SYNTHASE [NAD(P)(+)]-LIKE
Hgig_21037TRNA-DIHYDROURIDINE(47) SYNTHASE [NAD(P)(+)]-LIKE
Hgig_21038ES-2 PROTEIN - RELATED
Hgig_21039HEAVYWEIGHT, ISOFORM A
Hgig_21040PROTEIN LIN-7 HOMOLOG
Hgig_21041CHIMERIN FAMILY MEMBER
Hgig_21042
Hgig_21043
Hgig_21044GEO07735P1-RELATED-RELATED
Hgig_21045GERANYLGERANYL PYROPHOSPHATE SYNTHASE
Hgig_21046CXC DOMAIN-CONTAINING PROTEIN-RELATED
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