7.7.4 Alvinellidae Desbruyères &amp; Laubier, 1986

Jollivet, Didier; Hourdez, Stéphane

doi:10.1515/9783110291704-007

Cited by 3 publications

(38 citation statements)

References 54 publications

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“…This three-clades pattern is also largely the same with that recovered in Stiller et al (2020) except for the positions of P. sulfincola and P. fijiensis in relation to other species in clade III. The subdivision of Paralvinella into three subgenera was proposed by Desbruyères and Laubier (1993) based on traits of branchiae filaments, buccal apparatus, and distributions of the notopodial lobes and the uncinigerous tori (Jollivet and Hourdez, 2020). The subgenus Nautalvinella matches well with Clade I and was referred to Nautalvinella Desbruyères and Laubier (1993) (Stiller et al, 2020), but Paralvinella (Nautalvinella) unidentata is not clustered with this clade in an ultrametric phylogenomic tree recently reconstructed by Jollivet and Hourdez (2020).…”

Section: Discussionmentioning

confidence: 99%

“…The subdivision of Paralvinella into three subgenera was proposed by Desbruyères and Laubier (1993) based on traits of branchiae filaments, buccal apparatus, and distributions of the notopodial lobes and the uncinigerous tori (Jollivet and Hourdez, 2020). The subgenus Nautalvinella matches well with Clade I and was referred to Nautalvinella Desbruyères and Laubier (1993) (Stiller et al, 2020), but Paralvinella (Nautalvinella) unidentata is not clustered with this clade in an ultrametric phylogenomic tree recently reconstructed by Jollivet and Hourdez (2020). Similarly, monophyletic cluster of the four Paralvinella (Paralvinella) species (as revealed in Stiller et al, 2020 andHourdez, 2020) in clade III is likely to be unstable with the addition of the Indian and West Pacific species in the present study.…”

Section: Discussionmentioning

confidence: 99%

“…(3) notopodia on some anterior chaetigers (except for chaetiger 7) bearing digitiform notopodial lobes; (4) uncini starting on segments well after chaetiger 7 (Desbruyères and Laubier, 1993;Jollivet and Hourdez, 2020).…”

Section: Miralvinellamentioning

confidence: 99%

“…One of the most notable features of these vent communities is that they mainly comprise vent endemic fauna, which are not in any other habitats (Wolff, 2005). One of such typical examples is the vent endemic Alvinellidae (Annelida) Desbruyères and Laubier (1982), whose members are notable for their proximity to the fluid sources in hydrothermal vents and excellent adaptations to an extremely high temperature gradient (Jollivet and Hourdez, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…grasslei, P. pandorae pandorae/P. pandorae irlandei, and P. dela/bactericola), no sequences from the remaining four Paralvinella species to fully resolve the within-familial phylogeny and biogeographic pattern in the Pacific (Jollivet and Hourdez, 2020). The discovery of alvinellids in the Indian Ocean has raised questions on alvinellid phylogeny and biogeography beyond the Pacific: (1) are the Indian Ocean alvinellids new to science?, (2) do they represent a distinct lineage or not?, and (3) how may this Indian lineage contribute to a better understanding of the biogeography of alvinellids.…”

Section: Introductionmentioning

confidence: 99%

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Out of the Pacific: A New Alvinellid Worm (Annelida: Terebellida) From the Northern Indian Ocean Hydrothermal Vents

et al. 2021

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Alvinellids have long been considered to be endemic to Pacific vents until recent discovery of their presence in the Indian Ocean. Here, a new alvinellid is characterized and formally named from recently discovered vents, Wocan, and Daxi, in the northern Indian Ocean. Both morphological and molecular evidences support its placement in the genus Paralvinella, representing the first characterized alvinellid species out of the Pacific. The new species, formally described as Paralvinella mira n. sp. herein, is morphologically most similar to Paralvinella hessleri from the northwest Pacific, but the two species differ in three aspects: (1), the first three chaetigers are not fused in P. mira n. sp., whereas fused in P. hessleri; (2), paired buccal tentacles short and pointed in P. mira but large and strongly pointed in P. hessleri; (3), numerous slender oral tentacles ungrouped in P. mira but two groups in P. hessleri. Phylogenetic inference using the concatenated alignments of the cytochrome c oxidase I (COI), 16S rRNA and 18S rRNA genes strongly supports the clustering of P. mira with two West Pacific congeners, P. hessleri and an undescribed species (Paralvinella sp. ZMBN). The resulting Indian/West Pacific lineage suggests a possible invasion into the Indian Ocean from the West Pacific. This is the third polychaete reported from Wocan hydrothermal field. Among the three species, two including P. mira and Hesiolyra heteropoda (Annelida:Hesionidae) are present in high abundance, forming an alvinellids/hesionids-dominated polychaete assemblage distinct from that at all other Central Indian Ridge and Southwest Indian Ridge vents. Thus, this study expands our understanding of alvinellid biogeography beyond the Pacific, and adds to the unique biodiversity of the northern Indian Ocean vents, with implications for biogeographic subdivision across the Indian Ocean ridges.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Miralvinellamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Out of the Pacific: A New Alvinellid Worm (Annelida: Terebellida) From the Northern Indian Ocean Hydrothermal Vents

et al. 2021

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A step in the deep evolution of Alvinellidae (Annelida: Polychaeta): A phylogenomic comparative approach based on transcriptomes

Brun,

Hourdez,

Ballenghien

et al. 2024

Molecular Phylogenetics and Evolution

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A step in the deep evolution of Alvinellidae (Annelida: Polychaeta): a phylogenomic comparative approach based on transcriptomes

Brun¹,

Hourdez²,

Ballenghien³

et al. 2023

Preprint

Self Cite

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Alvinellid worms are a family of endemic and closely related species from deep-sea hydrothermal vents in the Pacific and Indian Oceans. These annelid worms, sister group to the Ampharetidae, occupy a wide range of ecological niches, some of which include the most thermotolerant marine animals described to date such as the Pompeii worm Alvinella pompejana, and other species living at much lower temperatures such as Paralvinella grasslei or Paralvinella pandorae. The phylogeny of this family has not yet been studied extensively. It is, however, a complex case with conflicting molecular phylogenies, the main question being the monophyletic or polyphyletic character of the genus Paralvinella. We carried out a comprehensive study of the phylogeny of this family using the best molecular data currently available from RNAseq datasets. The study is based on the assembly of several hundred transcripts for 11 of the 14 species described or in description. The results obtained by the most popular phylogenetic inference models (gene concatenation and maximum likelihood, or coalescent-based methods from gene trees) are compared, and an attempt is made to use sequence insertion and deletion information to evaluate and strengthen our choice over the different phylogenies using a newly-developed maximum likelihood method. Although our study does not allow to definitively assert the phylogeny of the Alvinellidae (three species are still missing), we propose to support the initial hypothesis of the monophyly of the Paralvinella proposed by Desbruyeres and Laubier on the basis of the morphology of the species, in which the speciesParalvinella pandorae and Paralvinella unidentata are basal in the genus Paralvinella and grouped together within the subgenus Nautalvinella. Following a clock calibration, the radiation of the Alvinellidae, dated between 55 and 78 Myr, took place very rapidly, resulting in high rates of incomplete lineage sorting between the first ancestors and probable gene transfers between the Alvinella, Nautalvinella and the rest of the Paralvinella lineages.

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7.7.4 Alvinellidae Desbruyères & Laubier, 1986

Cited by 3 publications

References 54 publications

Out of the Pacific: A New Alvinellid Worm (Annelida: Terebellida) From the Northern Indian Ocean Hydrothermal Vents

Out of the Pacific: A New Alvinellid Worm (Annelida: Terebellida) From the Northern Indian Ocean Hydrothermal Vents

A step in the deep evolution of Alvinellidae (Annelida: Polychaeta): A phylogenomic comparative approach based on transcriptomes

A step in the deep evolution of Alvinellidae (Annelida: Polychaeta): a phylogenomic comparative approach based on transcriptomes

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