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:0007127meiosis IGOBiological Process16expanded4.29E-050.000422895
GO:0002480antigen processing and presentation of exogenous peptide antigen via MHC class I, TAP-independentGOBiological Process3expanded4.30E-050.000422895
GO:0002483antigen processing and presentation of endogenous peptide antigenGOBiological Process3expanded4.30E-050.000422895
GO:0006599phosphagen metabolic processGOBiological Process3expanded4.30E-050.000422895
GO:0006603phosphocreatine metabolic processGOBiological Process3expanded4.30E-050.000422895
GO:0019885antigen processing and presentation of endogenous peptide antigen via MHC class IGOBiological Process3expanded4.30E-050.000422895
GO:0033345asparagine catabolic process via L-aspartateGOBiological Process3expanded4.30E-050.000422895
GO:0050843S-adenosylmethionine catabolic processGOBiological Process3expanded4.30E-050.000422895
GO:1901054sarcosine biosynthetic processGOBiological Process3expanded4.30E-050.000422895
GO:0031667response to nutrient levelsGOBiological Process44expanded4.52E-050.000443215
GO:0050673epithelial cell proliferationGOBiological Process26expanded4.77E-050.000464923
GO:0050878regulation of body fluid levelsGOBiological Process26expanded4.77E-050.000464923
GO:0060244negative regulation of cell proliferation involved in contact inhibitionGOBiological Process4expanded4.81E-050.00046578
GO:0071585detoxification of cadmium ionGOBiological Process4expanded4.81E-050.00046578
GO:0002474antigen processing and presentation of peptide antigen via MHC class IGOBiological Process7expanded4.95E-050.000474334
GO:0009404toxin metabolic processGOBiological Process7expanded4.95E-050.000474334
GO:0035902response to immobilization stressGOBiological Process7expanded4.95E-050.000474334
GO:0002209behavioral defense responseGOBiological Process9expanded5.10E-050.000487608
GO:0072329monocarboxylic acid catabolic processGOBiological Process18expanded5.12E-050.000487608
GO:0044036cell wall macromolecule metabolic processGOBiological Process5expanded5.29E-050.000497439
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