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:0048085adult chitin-containing cuticle pigmentationGOBiological Process5expanded0.0047818920.021777684
GO:0090049regulation of cell migration involved in sprouting angiogenesisGOBiological Process5expanded0.0047818920.021777684
GO:2000008regulation of protein localization to cell surfaceGOBiological Process5expanded0.0047818920.021777684
GO:0043393regulation of protein bindingGOBiological Process14expanded0.0048258450.021944355
GO:0005149interleukin-1 receptor bindingGOMolecular Function3expanded0.0049855180.016874833
GO:0005542folic acid bindingGOMolecular Function3expanded0.0049855180.016874833
GO:0008242omega peptidase activityGOMolecular Function3expanded0.0049855180.016874833
GO:0016406carnitine O-acyltransferase activityGOMolecular Function3expanded0.0049855180.016874833
GO:0016740transferase activityGOMolecular Function88expanded0.0049911480.016874833
GO:0031012extracellular matrixGOCellular Component14expanded0.0049958240.026962755
GO:0006112energy reserve metabolic processGOBiological Process8expanded0.005015240.022770867
GO:0045637regulation of myeloid cell differentiationGOBiological Process13expanded0.0050658590.022965741
GO:0001504neurotransmitter uptakeGOBiological Process6expanded0.0051327860.023233841
GO:1901992positive regulation of mitotic cell cycle phase transitionGOBiological Process9expanded0.005241240.023688818
GO:0006310DNA recombinationGOBiological Process16expanded0.0052736360.023772863
GO:0042826histone deacetylase bindingGOMolecular Function8expanded0.0052898760.017743994
GO:0009914hormone transportGOBiological Process19expanded0.0052907370.023772863
GO:0048679regulation of axon regenerationGOBiological Process7expanded0.0052917130.023772863
GO:0070570regulation of neuron projection regenerationGOBiological Process7expanded0.0052917130.023772863
GO:0002456T cell mediated immunityGOBiological Process5expanded0.0054769920.024348535
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