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.

Classification

Animalia (Kingdom); Arthropoda (Phylum); Crustacea (Subphylum); Multicrustacea (Superclass); Malacostraca (Class); Eumalacostraca (Subclass); Peracarida (Superorder); Amphipoda (Order); Amphilochidea (Suborder); Lysianassida (Infraorder); Lysianassidira (Parvorder); Lysianassoidea (Superfamily); Hirondelleidae (Family); Hirondellea (Genus); Hirondellea gigas (Species)

Original Name

Tetronychia gigas Birstein & M. Vinogradov, 1955

Original description

(Birstein et al., 1955)

Distribution/locality

Philippine Trench from Philippine Sea, Mariana Trench from North Pacific Ocean and Kuril-Kamchatka Trench


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 completeness (%)Scaffold/Contig N50 (kb)GC content (%)Repeat Rate (%)Gene Number
-13.92GbChromosome2025CNA0142381-CNP000537489.34 458,700/466.138.872.7527,881

References
TitleJournalPubmed ID
The amphipod genome reveals population dynamics and adaptations to hadal environmentCell40054448

Gene Information

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Gene IDDescription
Hgig_16997REVERSE TRANSCRIPTASE
Hgig_16998REVERSE TRANSCRIPTASE
Hgig_16999
Hgig_17000PROTEIN CBG27172
Hgig_17001
Hgig_17002
Hgig_17003REVERSE TRANSCRIPTASE
Hgig_17004
Hgig_17005
Hgig_17006MYOSUPPRESSIN RECEPTOR 1, ISOFORM B-RELATED
Hgig_17007
Hgig_17008
Hgig_17009
Hgig_17010
Hgig_17011
Hgig_17012BEAT PROTEIN
Hgig_17013DYNEIN HEAVY CHAIN 1, AXONEMAL-LIKE PROTEIN
Hgig_17014
Hgig_17015RNA HELICASE
Hgig_17016CYCLINS
Hgig_17017
Hgig_17018CYCLINS
Hgig_17019
Hgig_17020CYCLINS
Hgig_17021CYCLINS
Hgig_17022DELTA-AMINOLEVULINIC ACID DEHYDRATASE
Hgig_17023ADP-RIBOSYLTRANSFERASE
Hgig_17024
Hgig_17025
Hgig_17026
Hgig_17027
Hgig_17028E3 UBIQUITIN-PROTEIN LIGASE UBR4
Hgig_17029
Hgig_17030E3 UBIQUITIN-PROTEIN LIGASE UBR4
Hgig_17031
Hgig_17032E3 UBIQUITIN-PROTEIN LIGASE UBR4
Hgig_17033E3 UBIQUITIN-PROTEIN LIGASE UBR4
Hgig_17034E3 UBIQUITIN-PROTEIN LIGASE UBR4
Hgig_17035
Hgig_17036RE44287P-RELATED
Hgig_17037RECEPTOR-TYPE TYROSINE-PROTEIN PHOSPHATASE
Hgig_17038GAMMA-BUTYROBETAINE HYDROXYLASE-RELATED
Hgig_17039FIBRILLIN-RELATED
Hgig_17040DISCOIDIN, CUB, EGF, LAMININ , AND ZINC METALLOPROTEASE DOMAIN CONTAINING
Hgig_17041C-TYPE LECTIN DOMAIN-CONTAINING PROTEIN 180
Hgig_17042REVERSE TRANSCRIPTASE
Hgig_17043UNCHARACTERIZED
Hgig_17044
Hgig_17045PEPTIDYL-PROLYL CIS-TRANS ISOMERASE FKBP7/14
Hgig_17046
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