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_16397
Hgig_16398
Hgig_16399PROTEIN CBG27172
Hgig_16400SERUM RESPONSE FACTOR HOMOLOG
Hgig_16401SUPPRESSOR OF FUSED
Hgig_16402PROTEIN ARGININE N-METHYLTRANSFERASE
Hgig_16403RIBONUCLEASE P SUBUNIT P30
Hgig_16404
Hgig_16405INTEGRASE_SAM-LIKE_N DOMAIN-CONTAINING PROTEIN
Hgig_16406RAB6A-GEF COMPLEX PARTNER PROTEIN 1
Hgig_16407S-ADENOSYLMETHIONINE DECARBOXYLASE
Hgig_16408SYNAPTIC VESICLE GLYCOPROTEIN 2
Hgig_16409
Hgig_16410
Hgig_16411
Hgig_16412TUBBY-RELATED
Hgig_16413TUBBY-RELATED
Hgig_16414TUBBY-RELATED
Hgig_16415TUBBY-RELATED
Hgig_16416
Hgig_16417
Hgig_16418
Hgig_16419MITOCHONDRIAL BASIC AMINO ACIDS TRANSPORTER-RELATED
Hgig_16420
Hgig_16421NEUROTRANSMITTER GATED ION CHANNEL
Hgig_16422NEUROTRANSMITTER GATED ION CHANNEL
Hgig_16423
Hgig_16424NEUROTRANSMITTER GATED ION CHANNEL
Hgig_16425
Hgig_16426
Hgig_16427REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_16428
Hgig_16429TRANSPOSASE-RELATED
Hgig_16430SUPPRESSOR OF VARIEGATION 4-20-RELATED
Hgig_16431
Hgig_16432
Hgig_16433EXPORTIN 1/5
Hgig_16434NEUROTRANSMITTER GATED ION CHANNEL
Hgig_16435REVERSE TRANSCRIPTASE
Hgig_16436SI:CH211-262H13.3-RELATED-RELATED
Hgig_16437
Hgig_16438
Hgig_16439LIPASE
Hgig_16440REVERSE TRANSCRIPTASE
Hgig_16441
Hgig_16442
Hgig_16443BEAT PROTEIN
Hgig_16444ZINC FINGER PROTEIN WITH KRAB AND SCAN DOMAINS
Hgig_16445WD REPEAT-CONTAINING PROTEIN 75
Hgig_16446ZINC FINGER PROTEIN WITH KRAB AND SCAN DOMAINS
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