About Lindaspio polybranchiata

Lindaspio polybranchiata is a species of polychaete worm in the family Spionidae. It is known for its unique multiple branchial filaments, which aid in respiration and feeding. This species is typically found in deep-sea environments, often inhabiting soft sediments where it constructs burrows. Like other spionids, it uses its specialized palps to collect organic particles from the surrounding water and sediment, serving as a deposit feeder. Its adaptations to low-oxygen environments and its role in benthic ecosystems make it an important species for studying deep-sea biodiversity and ecological processes.

Classification

Animalia (Kingdom); Annelida (Phylum); Polychaeta (Class); Sedentaria (Subclass); Canalipalpata (Infraclass); Spionida (Order); Spioniformia (Suborder); Spionidae (Family); Lindaspio (Genus); Lindaspio polybranchiata (Species)

Original Name

Lindaspio polybranchiata Sui, Dong, Wu & Li, 2023

Key Reference Paper

1. Sui J, Dong D, Wu X, et al.  A new species of the genus Lindaspio Blake & Maciolek, 1992 (Annelida, Spionidae) from a cold seep near Hainan Island, China[J]. ZooKeys, 2023, 1153: 105. (Sui et al., 2023)

Description

Total length 55 mm, maximum width 4 mm, including chaetae. More than 350 crowded chaetigers. Color pale in alcohol. Prostomium incised, developed into two frontal lobes or weak horns; caruncle present or absent; occipital tentacle absent. Peristomial wings absent. Notopodia of chaetigers 2–4 with fascicles of heavy spines. Anterior neuropodial spines present. Dorsal branchiae starting from chaetiger 2; ventral branchiae starting from an anterior segment, branchiae closely associated with parapodial lamellae, continuing to posterior end. Chaetiger 1 reduced, with notopodia reduced to single lamellae lacking notochaetae. Following notopodia and neuropodia with capillaries and hooded hooks. Pygidium simple, conical, lacking cirri.

Etymology

The species is so named because it has more neuropodial branchiae than the congeners.

Distribution

Lingshui cold seep cruise, Faxian Dive 252, 1758 m, 17°37'N, 111°03'E, coll. crew of R/V Kexue


Basic Information
SpeciesPhylumCommon NameEcosystemDepthHabitatNCBI Taxonomy ID
Lindaspio polybranchiataAnnelida-Cold seep1,700Lingshui Cold Seep3032291

Genome Assembly Information
Genome AssemblyGenome SizeAssembly levelReleased yearWGS accessionSubmitterBioProjectBUSCO completeness (%)Scaffold/Contig N50 (kb)GC content (%)Repeat Rate (%)Gene Number
-1.66GbContig2025--PRJNA118820790.10 ---27,746

References
TitleJournalPubmed ID
Degenerated vision, altered lipid metabolism, and expanded chemoreceptor repertoires enable Lindaspio polybranchiata to thrive in deep-sea cold seepsBMC Biology39806408

Results of comparison between Lindaspio polybranchiata and its nearshore relatives from the paper (Yan et al., 2025)

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Annotation IDDescriptionTypeSubtypeGeneRatioEvolution TypeP-valueQ-value
GO:0006334nucleosome assemblyGOBiological Process21expanded3.05E-143.25E-12
GO:0097367carbohydrate derivative bindingGOMolecular Function76expanded4.12E-142.19E-12
GO:0006323DNA packagingGOBiological Process34expanded6.69E-146.88E-12
GO:0004364glutathione transferase activityGOMolecular Function15expanded2.37E-131.12E-11
GO:0004602glutathione peroxidase activityGOMolecular Function13expanded3.19E-131.36E-11
GO:0060631regulation of meiosis IGOBiological Process13expanded3.45E-133.43E-11
GO:0044815DNA packaging complexGOCellular Component21expanded4.24E-132.22E-11
GO:0000228nuclear chromosomeGOCellular Component54expanded5.71E-132.62E-11
GO:0042800histone methyltransferase activity (H3-K4 specific)GOMolecular Function13expanded7.07E-132.74E-11
GO:0050911detection of chemical stimulus involved in sensory perception of smellGOBiological Process14expanded8.70E-138.37E-11
GO:0071103DNA conformation changeGOBiological Process36expanded1.98E-121.85E-10
GO:0097655serpin family protein bindingGOMolecular Function11expanded2.02E-127.16E-11
GO:1901568fatty acid derivative metabolic processGOBiological Process28expanded2.27E-122.05E-10
GO:0004177aminopeptidase activityGOMolecular Function15expanded9.33E-123.06E-10
GO:0022617extracellular matrix disassemblyGOBiological Process18expanded1.38E-111.21E-09
GO:0061580colon epithelial cell migrationGOBiological Process9expanded1.46E-111.24E-09
GO:0045836positive regulation of meiotic nuclear divisionGOBiological Process13expanded1.84E-111.53E-09
GO:0097180serine protease inhibitor complexGOCellular Component11expanded2.21E-119.00E-10
GO:0000079regulation of cyclin-dependent protein serine/threonine kinase activityGOBiological Process20expanded3.04E-112.45E-09
GO:0008236serine-type peptidase activityGOMolecular Function23expanded4.04E-111.22E-09
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