Diversity and phylogenetic relationships of North Atlantic Laonice Malmgren, 1867 (Spionidae, Annelida) including the description of a novel species

Bogantes, Viktoria E.; Halanych, Kenneth M.; Meißner, Karin

doi:10.1007/s12526-018-0859-8

Cited by 20 publications

(13 citation statements)

References 36 publications

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“…Sikorski (2002) indicated that L. cirrata, a previously presumed widespread species, is probably limited to Norway and adjacent regions. This was supported by a molecular study that suggested previously unrecognized diversity within this species (Bogantes et al 2018). Laonice japonica, originally described as Spionides japonicus from Japan and later considered as synonymous with L. cirrata (e.g., Söderström 1920;Berkeley and Berkeley 1936;Okuda 1937;Imajima and Hartman 1964;Foster 1971), was reexamined and considered a valid species by Maciolek (2000) and Sikorski (2011).…”

Section: Laonice Sp 1 Fig 4dmentioning

confidence: 88%

Molecular identification and larval morphology of spionid polychaetes (Annelida, Spionidae) from northeastern Japan

Abe¹,

Sato-Okoshi²

2021

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Planktonic larvae of spionid polychaetes are among the most common and abundant group in coastal meroplankton worldwide. The present study reports the morphology of spionid larvae collected mainly from coastal waters of northeastern Japan that were identified by the comparison of adult and larval 18S and 16S rRNA gene sequences. The molecular analysis effectively discriminated the species. Adult sequences of 48 species from 14 genera (Aonides Claparède, 1864; Boccardia Carazzi, 1893; Boccardiella Blake & Kudenov, 1978; Dipolydora Verrill, 1881; Laonice Malmgren, 1867; Malacoceros Quatrefages, 1843; Paraprionospio Caullery, 1914; Polydora Bosc, 1802; Prionospio Malmgren, 1867; Pseudopolydora Czerniavsky, 1881; Rhynchospio Hartman, 1936; Scolelepis Blainville, 1828; Spio Fabricius, 1785; Spiophanes Grube, 1860) and larval sequences of 41 species from 14 genera (Aonides; Boccardia; Boccardiella; Dipolydora; Laonice; Paraprionospio; Poecilochaetus Claparède in Ehlers, 1875; Polydora; Prionospio; Pseudopolydora; Rhynchospio; Scolelepis; Spio; Spiophanes) of spionid polychaetes were obtained; sequences of 27 of these species matched between adults and larvae. Morphology of the larvae was generally species‐specific, and larvae from the same genus mostly shared morphological features, with some exceptions. Color and number of eyes, overall body shape, and type and arrangement of pigmentation are the most obvious differences between genera or species. The morphological information on spionid larvae provided in this study contributes to species or genus level larval identification of this taxon in the studied area. Identification keys to genera and species of planktonic spionid larvae in northeastern Japan are provided. The preliminary results of the molecular phylogeny of the family Spionidae using 18S and 16S rRNA gene regions are also provided.

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Section: Laonice Sp 1 Fig 4dmentioning

confidence: 88%

Molecular identification and larval morphology of spionid polychaetes (Annelida, Spionidae) from northeastern Japan

Abe¹,

Sato-Okoshi²

2021

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“…As all of the studied specimens were damaged and important species discriminating characters were often missing, morphological identification was limited, which could explain this inconsistency. The problem of morphological identification is known for deep-sea polychaetes, due to their soft bodies resulting in easy fragmentation and the way of sampling infauna from deep-sea sediments, where extreme care must be taken regarding sieving techniques to preserve morphology (Bogantes et al 2018;Glover et al 2016;Guggolz et al 2019). Furthermore, Prionospio and Aurospio are classified within the Prionospio complex, in which the generic characters are limited and still under debate (Paterson et al 2016;Sigvaldadottir 1998;Wilson 1990;Yokoyama 2007).…”

Section: Discussionmentioning

confidence: 99%

“…These characters seem to be sufficient to identify specimens in appropriate conditions, but the morphological identification of these softbodied annelids from deep-sea samples is often difficult. Due to their fragility, the majority of specimens from these depths are incomplete or damaged (Bogantes et al 2018;Guggolz et al 2018Guggolz et al , 2019. For example, the genus Aurospio is mainly distinguished from Prionospio by the number of the branchiae and on which segment they are beginning (Sigvaldadóttir and Mackie 1993), but these appendages are often lost or damaged during sampling procedures.…”

Section: Introductionmentioning

confidence: 99%

High diversity and pan-oceanic distribution of deep-sea polychaetes: Prionospio and Aurospio (Annelida: Spionidae) in the Atlantic and Pacific Ocean

et al. 2020

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Prionospio Malmgren 1867 and Aurospio Maciolek 1981 (Annelida: Spionidae) are polychaete genera commonly found in the deep sea. Both genera belong to the Prionospio complex, whose members are known to have limited distinguishing characters. Morphological identification of specimens from the deep sea is challenging, as fragmentation and other damages are common during sampling. These issues impede investigations into the distribution patterns of these genera in the deep sea. In this study, we employ two molecular markers (16S rRNA and 18S) to study the diversity and the distribution patterns of Prionospio and Aurospio from the tropical North Atlantic, the Puerto Rico Trench and the central Pacific. Based on different molecular analyses (Automated Barcode Gap Discovery, GMYC, pairwise genetic distances, phylogenetics, haplotype networks), we were able to identify and differentiate 21 lineages (three lineages composed solely of GenBank entries) that represent putative species. Seven of these lineages exhibited pan-oceanic distributions (occurring in the Atlantic as well as the Pacific) in some cases even sharing identical 16S rRNA haplotypes in both oceans. Even the lineages found to be restricted to one of the oceans were distributed over large regional scales as for example across the Mid-Atlantic Ridge from the Caribbean to the eastern Atlantic (> 3389 km). Our results suggest that members of Prionospio and Aurospio may have the potential to disperse across large geographic distances, largely unaffected by topographic barriers and possibly even between oceans. Their high dispersal capacities are probably explained by their free-swimming long-lived planktonic larvae.

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“…Remarks: Genus Laonice consists of 38 described species with many more not formalized especially from deep sea environments, in part reflecting the problematic taxonomy of this group (e.g., Sikorski et al 2017;Bogantes et al 2018). Laonice has recently been divided into four subgenera: Laonice, Sarsiana, Appelloefia, and Norgensia by Sikorski et al (2017), based on characters such as fusion of prostomium and peristomium, development of nuchal organs, presence of notopodial hooks, number of rows of capillaries in anterior chaetigers, and the distribution of branchiae and genital pouches.…”

Section: Molecular Informationmentioning

confidence: 99%

Abyssal fauna of polymetallic nodule exploration areas, eastern Clarion-Clipperton Zone, central Pacific Ocean: Annelida: Spionidae and Poecilochaetidae

et al. 2022

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This paper represents a continuation of taxonomic publications on the benthic fauna of polymetallic nodule fields in the eastern Clarion-Clipperton Zone (CCZ) using material collected during baseline environmental survey work targeting two exploration contract areas (“UK-1” and “OMS”) and one Area of Particular Environmental Interest, “APEI-6.” Families Poecilochaetidae Hannerz, 1956 and Spionidae Grube, 1850 of the annelid suborder Spioniformia were studied here. Taxonomic data are presented for 25 species from 98 records as identified by a combination of morphological and genetic approaches. Although sub-optimal morphological condition can prevent new species being formally described, it is essential that morphological, molecular, and voucher data are made available for future surveys. Descriptions of two new species—Poecilochaetus brenkei sp. nov. and Laonice shulseae sp. nov.—increase the number of formally described new annelid species from the areas targeted in this study to 15 and CCZ-wide to 46. We also discuss the commonly reported “cosmopolitan” deep-sea spionid Aurospio dibranchiata Maciolek, 1981, which we show represents several genetically distinct species (three of these from CCZ area alone) but without reliable morphological characters to separate them. Molecular data provide evidence that 15 out of 25 species reported here have a wide distribution within the eastern CCZ and that Aurospio sp. “NHM_2186” and the known species Prionospio amarsupiata Neal & Altamira in Paterson et al. 2016 may be cosmopolitan. Lastly, the molecular data provide insights into relationships within Spioniformia, suggesting that both Poecilochaetidae and Trochochaetidae belong within Spionidae.

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Diversity and phylogenetic relationships of North Atlantic Laonice Malmgren, 1867 (Spionidae, Annelida) including the description of a novel species

Cited by 20 publications

References 36 publications

Molecular identification and larval morphology of spionid polychaetes (Annelida, Spionidae) from northeastern Japan

Molecular identification and larval morphology of spionid polychaetes (Annelida, Spionidae) from northeastern Japan

High diversity and pan-oceanic distribution of deep-sea polychaetes: Prionospio and Aurospio (Annelida: Spionidae) in the Atlantic and Pacific Ocean

Abyssal fauna of polymetallic nodule exploration areas, eastern Clarion-Clipperton Zone, central Pacific Ocean: Annelida: Spionidae and Poecilochaetidae

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