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_17447EXONUCLEASE, PHAGE-TYPE/RECB, C-TERMINAL DOMAIN-CONTAINING PROTEIN
Hgig_17448SYNAPTIC ADHESION-LIKE MOLECULE SALM
Hgig_17449OSJNBA0013A04.12 PROTEIN
Hgig_17450PROTEIN CBG27172
Hgig_17451
Hgig_17452INTRAFLAGELLAR TRANSPORT PROTEIN 122 FAMILY PROTEIN-RELATED
Hgig_17453INTRAFLAGELLAR TRANSPORT PROTEIN 122 FAMILY PROTEIN-RELATED
Hgig_17454INTRAFLAGELLAR TRANSPORT PROTEIN 122 FAMILY PROTEIN-RELATED
Hgig_17455INTRAFLAGELLAR TRANSPORT PROTEIN 122 FAMILY PROTEIN-RELATED
Hgig_17456INTRAFLAGELLAR TRANSPORT PROTEIN 122 FAMILY PROTEIN-RELATED
Hgig_17457INTRAFLAGELLAR TRANSPORT PROTEIN 122 FAMILY PROTEIN-RELATED
Hgig_17458INTRAFLAGELLAR TRANSPORT PROTEIN 122 FAMILY PROTEIN-RELATED
Hgig_17459INTRAFLAGELLAR TRANSPORT PROTEIN 122 FAMILY PROTEIN-RELATED
Hgig_17460EH DOMAIN
Hgig_17461EH DOMAIN
Hgig_17462SH3 DOMAIN-CONTAINING
Hgig_17463SH3 DOMAIN-CONTAINING
Hgig_17464RHO GUANINE NUCLEOTIDE EXCHANGE FACTOR AT 64C, ISOFORM A
Hgig_17465CALCIUM BINDING PROTEINS
Hgig_17466
Hgig_17467
Hgig_17468
Hgig_17469
Hgig_17470METHYLTRANSF_11 DOMAIN-CONTAINING PROTEIN
Hgig_17471
Hgig_17472
Hgig_17473SIDESTEP PROTEIN
Hgig_17474SIDESTEP PROTEIN
Hgig_17475
Hgig_17476GALACTOSE-3-O-SULFOTRANSFERASE
Hgig_17477SULFOTRANSFERASE SULT
Hgig_17478SULFOTRANSFERASE SULT
Hgig_17479
Hgig_17480REVERSE TRANSCRIPTASE
Hgig_17481APOLIPOPROTEIN D
Hgig_17482CTX-RELATED TYPE I TRANSMEMBRANE PROTEIN
Hgig_17483PROTEIN SIDEKICK
Hgig_17484N-ALPHA-ACETYLTRANSFERASE 60
Hgig_17485MITOGEN-ACTIVATED PROTEIN KINASE
Hgig_17486
Hgig_17487SLIT RELATED LEUCINE-RICH REPEAT NEURONAL PROTEIN
Hgig_17488
Hgig_17489
Hgig_17490
Hgig_17491PEPTIDYL-PROLYL CIS-TRANS ISOMERASE
Hgig_17492
Hgig_17493
Hgig_17494WD-40 REPEAT PROTEIN
Hgig_17495
Hgig_17496
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