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:0031104dendrite regenerationGOBiological Process6expanded1.38E-073.73E-06
GO:0036146cellular response to mycotoxinGOBiological Process6expanded1.38E-073.73E-06
GO:0030219megakaryocyte differentiationGOBiological Process13expanded1.39E-073.73E-06
GO:0000018regulation of DNA recombinationGOBiological Process15expanded1.53E-074.08E-06
GO:0004872receptor activityGOMolecular Function48expanded1.66E-071.78E-06
GO:0018024histone-lysine N-methyltransferase activityGOMolecular Function13expanded1.67E-071.78E-06
GO:0008238exopeptidase activityGOMolecular Function18expanded1.67E-071.78E-06
GO:0007584response to nutrientGOBiological Process28expanded1.78E-074.69E-06
GO:0033327Leydig cell differentiationGOBiological Process8expanded1.85E-074.75E-06
GO:0060749mammary gland alveolus developmentGOBiological Process8expanded1.85E-074.75E-06
GO:0061377mammary gland lobule developmentGOBiological Process8expanded1.85E-074.75E-06
GO:0060089molecular transducer activityGOMolecular Function48expanded1.97E-072.05E-06
GO:0060147regulation of posttranscriptional gene silencingGOBiological Process13expanded2.08E-075.30E-06
GO:0030207chondroitin sulfate catabolic processGOBiological Process9expanded2.78E-076.94E-06
GO:0003993acid phosphatase activityGOMolecular Function7expanded2.82E-072.80E-06
GO:0016634oxidoreductase activity, acting on the CH-CH group of donors, oxygen as acceptorGOMolecular Function7expanded2.82E-072.80E-06
GO:0019748secondary metabolic processGOBiological Process18expanded2.84E-076.94E-06
GO:0018243protein O-linked glycosylation via threonineGOBiological Process8expanded2.90E-076.94E-06
GO:0033197response to vitamin EGOBiological Process8expanded2.90E-076.94E-06
GO:0044321response to leptinGOBiological Process8expanded2.90E-076.94E-06
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