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_07096
Hgig_07097
Hgig_07098
Hgig_07099
Hgig_07100
Hgig_07101
Hgig_07102UNCHARACTERIZED
Hgig_07103TRANSPOSON TY3-I GAG-POL POLYPROTEIN
Hgig_07104
Hgig_07105PALMITOYL-PROTEIN THIOESTERASE/DOLICHYLDIPHOSPHATASE 1
Hgig_07106
Hgig_07107ANAPHASE-PROMOTING COMPLEX SUBUNIT 2
Hgig_07108KRUEPPEL-LIKE TRANSCRIPTION FACTOR
Hgig_07109SLIT RELATED LEUCINE-RICH REPEAT NEURONAL PROTEIN
Hgig_07110
Hgig_07111HVA22-LIKE PROTEINS
Hgig_07112
Hgig_07113HVA22-LIKE PROTEINS
Hgig_07114REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_07115
Hgig_07116TBC1 DOMAIN FAMILY MEMBER 19
Hgig_07117ATP-DEPENDENT RNA HELICASE
Hgig_07118PROTEIN CBG27172
Hgig_07119TRANSPOSASE-RELATED
Hgig_07120
Hgig_07121
Hgig_07122UNCHARACTERIZED
Hgig_07123MRNA EXPORT FACTOR AND BUB3
Hgig_07124NEUROTRANSMITTER GATED ION CHANNEL
Hgig_07125NEUROTRANSMITTER GATED ION CHANNEL
Hgig_07126
Hgig_07127FIBRINOGEN/TENASCIN/ANGIOPOEITIN
Hgig_07128FIBRINOGEN/TENASCIN/ANGIOPOEITIN
Hgig_07129
Hgig_07130
Hgig_07131REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_07132CARBONIC ANHYDRASE
Hgig_07133CARBONIC ANHYDRASE
Hgig_07134
Hgig_07135PROTEIN, PUTATIVE-RELATED
Hgig_07136TRANSPOSABLE ELEMENT-RELATED
Hgig_07137SIDESTEP PROTEIN
Hgig_07138
Hgig_07139SIDESTEP PROTEIN
Hgig_07140ELECTRON TRANSFER FLAVOPROTEIN-UBIQUINONE OXIDOREDUCTASE
Hgig_07141ELECTRON TRANSFER FLAVOPROTEIN-UBIQUINONE OXIDOREDUCTASE
Hgig_07142GEO08273P1-RELATED
Hgig_07143
Hgig_07144ADP-RIBOSYLATION FACTOR-LIKE PROTEIN 8
Hgig_07145OS02G0815200 PROTEIN
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