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/Redescription

1. Birstein J A, Vinogradov M E. Pelagicheskie gammaridy (Amphipoda, Gammaridea) Kurilo-Kamchatskoi Vpadiny[J]. Akademiya Nauk SSSR, Trudy Instituta Okeanologii, 1955, 12: 219-257. (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_15847
Hgig_15848MASK PROTEIN
Hgig_15849PHOSPHATIDYLINOSITOL KINASE
Hgig_15850NEUROTRANSMITTER GATED ION CHANNEL
Hgig_15851GENERAL TRANSCRIPTION FACTOR IIIC, POLYPEPTIDE 5
Hgig_15852
Hgig_15853COPINE
Hgig_15854
Hgig_15855DNA REPAIR PROTEIN REV1
Hgig_15856
Hgig_15857
Hgig_15858NEURALIZED
Hgig_15859NEURALIZED
Hgig_15860
Hgig_15861
Hgig_15862
Hgig_15863
Hgig_15864
Hgig_15865RHO GUANINE EXCHANGE FACTOR-RELATED
Hgig_15866PROTEASE FAMILY M14 CARBOXYPEPTIDASE A,B
Hgig_15867ABC TRANSPORTER G FAMILY MEMBER 28
Hgig_15868RHO GUANINE EXCHANGE FACTOR-RELATED
Hgig_15869DNAJ HOMOLOG SUBFAMILY C MEMBER 10
Hgig_15870ABC1 FAMILY PROTEIN
Hgig_15871AGAP011572-PA
Hgig_15872
Hgig_15873METALLO PHOSPHOESTERASE RELATED
Hgig_15874KH DOMAIN CONTAINING RNA BINDING PROTEIN
Hgig_15875GUANINE NUCLEOTIDE-BINDING PROTEIN BETA G PROTEIN BETA
Hgig_15876
Hgig_15877
Hgig_15878
Hgig_15879
Hgig_15880ADAMTS A DISINTEGRIN AND METALLOPROTEASE WITH THROMBOSPONDIN MOTIFS PROTEASE
Hgig_15881ADAMTS A DISINTEGRIN AND METALLOPROTEASE WITH THROMBOSPONDIN MOTIFS PROTEASE
Hgig_15882C-TYPE LECTIN DOMAIN-CONTAINING PROTEIN 180
Hgig_15883C-TYPE LECTIN DOMAIN-CONTAINING PROTEIN 180
Hgig_15884
Hgig_15885
Hgig_15886
Hgig_15887
Hgig_15888
Hgig_15889REVERSE TRANSCRIPTASE
Hgig_15890CYSTEINE PROTEASE FAMILY C1-RELATED
Hgig_15891
Hgig_15892TRANSPOSASE-RELATED
Hgig_15893CYSTEINE PROTEASE FAMILY C1-RELATED
Hgig_15894CYSTEINE PROTEASE FAMILY C1-RELATED
Hgig_15895REVERSE TRANSCRIPTASE
Hgig_15896
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