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_15897
Hgig_15898
Hgig_15899
Hgig_15900
Hgig_15901REVERSE TRANSCRIPTASE
Hgig_15902
Hgig_15903
Hgig_15904TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_15905
Hgig_15906
Hgig_15907
Hgig_15908
Hgig_15909
Hgig_15910
Hgig_15911TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_15912
Hgig_15913
Hgig_1591430S RIBOSOMAL PROTEIN S2 PROKARYOTIC AND ORGANELLAR
Hgig_15915
Hgig_15916SCAVENGER RECEPTOR CLASS F
Hgig_15917SIDESTEP PROTEIN
Hgig_15918
Hgig_15919REVERSE TRANSCRIPTASE
Hgig_15920DEFECTIVE PROBOSCIS EXTENSION RESPONSE DPR -RELATED
Hgig_15921
Hgig_15922REVERSE TRANSCRIPTASE
Hgig_15923
Hgig_15924
Hgig_15925
Hgig_15926
Hgig_15927
Hgig_15928
Hgig_15929
Hgig_15930GLYCINE-RICH CELL WALL STRUCTURAL PROTEIN 1-LIKE
Hgig_15931
Hgig_15932
Hgig_15933
Hgig_15934
Hgig_15935
Hgig_15936
Hgig_15937
Hgig_15938
Hgig_15939
Hgig_15940
Hgig_15941
Hgig_15942
Hgig_15943ENOLASE SUPERFAMILY, MANDELATE RACEMASE
Hgig_15944ENOLASE SUPERFAMILY, MANDELATE RACEMASE
Hgig_15945RIBOSOMAL PROTEIN S19P FAMILY MEMBER
Hgig_15946RIBOSOMAL PROTEIN S19P FAMILY MEMBER
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