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.


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 completenessGene Number
-13.92GbChromosome2025CNA0142381-CNP000537489.34%27,881

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

Gene Information

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Gene IDDescription
Hgig_00946HISTONE DEACETYLASE HDAC1-RELATED
Hgig_00947
Hgig_00948ALPHA-GLUCOSIDASE
Hgig_00949ALPHA-GLUCOSIDASE
Hgig_00950
Hgig_00951DNA PRIMASE LARGE SUBUNIT
Hgig_00952HIGH MOBILITY GROUP PROTEIN 2
Hgig_00953
Hgig_00954
Hgig_00955
Hgig_00956LEUCINE RICH REPEAT IN FLII INTERACTING PROTEIN
Hgig_00957
Hgig_00958
Hgig_00959F13M7.16 PROTEIN
Hgig_00960UBIQUITIN CARBOXYL-TERMINAL HYDROLASE
Hgig_00961
Hgig_00962
Hgig_00963
Hgig_00964PROLACTIN REGULATORY ELEMENT BINDING PROTEIN
Hgig_00965RNA-BINDING MOTIF PROTEIN 14B
Hgig_00966CARBOHYDRATE SULFOTRANSFERASE
Hgig_00967
Hgig_00968TRANSCOBALAMIN-1/GASTRIC INTRINSIC FACTOR
Hgig_00969UNCHARACTERIZED
Hgig_00970SAP30
Hgig_00971MORTALITY FACTOR 4-LIKE PROTEIN
Hgig_00972SEPTIN
Hgig_00973
Hgig_00974TROPOMYOSIN
Hgig_00975PROTEIN STAR
Hgig_00976
Hgig_00977
Hgig_00978
Hgig_00979
Hgig_00980
Hgig_00981WD-40 REPEAT PROTEIN
Hgig_00982
Hgig_00983-
Hgig_00984
Hgig_00985
Hgig_00986CELL DIVISION PROTEIN KINASE
Hgig_00987TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_00988TRANSCOBALAMIN-1/GASTRIC INTRINSIC FACTOR
Hgig_00989TRANSCOBALAMIN-1/GASTRIC INTRINSIC FACTOR
Hgig_00990UNCHARACTERIZED
Hgig_00991
Hgig_00992
Hgig_00993
Hgig_00994
Hgig_00995REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
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