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Article

First Molecular Phylogeny of Lumbrineridae (Annelida)

by
Polina Borisova
1 and
Nataliya Budaeva
1,2,*
1
Shirshov Institute of Oceanology, Russian Academy of Sciences, 117218 Moscow, Russia
2
Department of Natural History, University Museum of Bergen, University of Bergen, 5020 Bergen, Norway
*
Author to whom correspondence should be addressed.
Diversity 2022, 14(2), 83; https://doi.org/10.3390/d14020083
Submission received: 1 December 2021 / Revised: 18 January 2022 / Accepted: 18 January 2022 / Published: 25 January 2022

Abstract

:
Lumbrineridae is a family of marine annelids with simple external morphology but complex and diverse jaw apparatuses consisting of paired maxillae and mandibles. Here we present the first phylogeny of lumbrinerids based on combination of nuclear (18S rDNA) and mitochondrial (COI, 16S rDNA) markers utilizing Bayesian inference and Maximum Likelihood approaches. Despite limited taxon sampling, our results support monophyly of the genera Abyssoninoe, Augeneria, Gallardoneris, Lumbrineriopsis, and Ninoe and indicate polyphyly of the genera Lumbrineris (the type genus of the family) and Scoletoma. None of the morphological characters traditionally used in lumbrinerid systematics, such as the presence of connecting plates, four pairs of maxillae, bidentate simple hooded hooks, colorless maxillae IV, and multidentate maxillae IV were found to be exclusive homologies for a well-supported clade and have probably evolved several times independently within Lumbrineridae.

1. Introduction

Lumbrineridae Schmarda, 1861 [1] is a family of marine bristle worms from the larger and well-defined group of jaw bearing annelids–Eunicida. The jaws are composed of dorsal maxillae and ventral mandibles located in the ventral muscular pharynx and are used for feeding. Lumbrinerids exhibit rather simple external morphology with poorly developed parapodia and without prominent prostomial and body appendages (Figure 1). Therefore, the details of maxillary apparatus have proven to be useful as diagnostic characters at genus and species level [2,3]. The maxillae of lumbrinerids are considered to be of symmetrognath type [4] with short paired maxillary carriers, forceps-like maxillae I, multidentate massive maxillae II, and two to four pairs of smaller distal maxillary plates (maxillae III–VI). Accessory plates such as attachment lamellae and connecting plates can be found in some genera but are still poorly described for most species [5,6] (Figure 2).
The currently accepted system of Lumbrineridae was proposed by Carrera-Parra [7] who provided diagnoses for 19 genera including six new genera. Recent review of the family by Oug et al. [6] listed updated diagnoses for all known lumbrinerid genera largely based on the revision by Carrera-Parra [7] but also utilizing more recent publications and the original descriptions (Table 1). The current total species count ranges between about 200 [6] and 280 [5] species; however, even the latter number might be highly underestimated.
Carrera-Parra [7] suggested a phylogenetic reconstruction of Lumbrineridae based on 38 morphological characters using genera as terminal taxa. Thus, the hypotheses of monophyly of individual genera was not tested. All genera were grouped into three sub-clades, except for Lysarete and Arabellonereis lacking bi- or multidentate hooks, a character present in all other lumbrinerids. The first sub-clade was represented by Ninoe, a genus with well-developed palmate parapodial branchiae. The second sub-clade combined genera with connecting plates–maxillary accessory structures placed between MI and MII (Figure 2A,C): Scoletoma, Lumbrineris, Hilbigneris, Kuwaita, Lumbricalus, Sergioneris and Eranno. Nevertheless, the shape, position, and degree of sclerotization of the connecting plates in all seven genera varies greatly and homology of these structures is not clearly understood. The remaining nine genera (Abyssoninoe, Cenogenus, Lumbrinerides, Lumbrineriopsis, Augeneria, Loboneris, Gallardoneris, Helmutneris, and Gesaneris) were grouped into the third sub-clade based on the presence of only four pairs of maxillae, although this character state was not exclusive to the clade and was also reported in Sergioneris.
Lumbrineris is the type and the most species-rich genus of the family. Carrera-Parra [7] recognized 36 valid species based on 57 known names but the number may well reach 50 [6]. Originally, Lumbrineris included only three species [20] but due to very wide definition subsequently encompassed a very large number of species [23,24,25]. Reevaluation of maxillary and fine chaetal structures allowed restricting of the genus diagnosis and led to transferring of part of the species to several different genera [2,7,16]. Nevertheless, many of the early described lumbrinerids lacking detailed information on their jaw morphology are still referred to Lumbrineris [6] making this genus a taxon of questionable monophyly.
Very little molecular data for lumbrinerids is available in public databases (e.g., GenBank, Barcode of Life Database—BOLD) mostly for the genera Lumbrineris, Scoletoma and Ninoe. For nine genera no genetic information is published up to date. Several species were used in reconstructing large-scale phylogenies of Eunicida [26,27] or Annelida [28,29,30] based on several markers or genomic data but no molecular phylogenetic reconstruction of relationships between the genera is available. In the present study, we publish new genetic data for 18 species of lumbrinerids and propose the first molecular phylogeny of Lumbrineridae based on independent evidence such as combination of mitochondrial and nuclear markers. We also discuss the importance of selected morphological characters in systematics of Lumbrineridae.

2. Materials and Methods

2.1. Taxon Sampling

We have sampled 45 specimens from 18 species of lumbrinerids representing 10 of the 19 currently known genera. Sequences for eight more species from the sampled genera were obtained from the GenBank and BOLD (Table 2). Nine genera were not included in the analysis due to unavailability of material suitable for DNA extraction. Three species from other eunicids families and Glycera alba (Glyceridae) were selected as outgroup taxa. Voucher specimens are deposited in the Invertebrate Collection, University Museum of Bergen, University of Bergen, Bergen, Norway (ZMBN), Zoological Museum of Moscow State University, White Sea Biological Station, Moscow, Russia (WSBS), and in the annelid collection of the Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia (IORAS). Detailed information of the museum catalogue numbers and geographical localities of each specimen can be found in the Supplementary Material (Table S1).

2.2. DNA Extraction, PCR Amplification and DNA Sequencing

Genomic DNA was extracted from 96% ethanol fixed samples using glass milk methods or QuickExtract™. Fragments of mitochondrial COI and 16S genes were amplified using primer pairs: 16SarL (forward) + 16Brh (reverse) [53], polyLCO (forward) + polyHCO (reverse) [50], HCO (forward) + LCO (reverse) [54]. For the nuclear marker 18S we designed specific primers (Table S2). PCR cycling protocol are shown in the Table S2. After visualization on a 1% agarose gel, the PCR products were purified using Ethanol/EDTA/Sodium Acetate Precipitation and bidirectionally Sanger sequenced using an Applied Biosystems automated sequencer. Chromatograms of forward and reverse sequences were aligned and proofread in Geneious R6 [55].

2.3. Sequence Alignment

Alignment was conducted using default parameters in MUSCLE [56] implemented in MEGA7 [57]. Aligned COI sequences were translated into amino-acid sequences using the invertebrate mitochondrial code (NCBI translation code 5) to ensure stop codons or frameshift mutations were not present. The sequences were then back translated into nucleotides for further phylogenetic analyses. For 16S and 18S markers we used Gblocks V.0.91b [58] to eliminate poorly aligned positions in the original alignments. The following parameters were used while masking: minimum number of sequences for a conserved position–49; minimum number of sequences for a flanking position–81; maximum number of contiguous non conserved positions–8; minimum length of a block–10; allowed gap positions–with half.

2.4. Phylogenetic Analyses

2.4.1. Bayesian Inference (BI)

Best-fit partitions and models were inferred with PartitionFinder2 [59] on XSEDE v1.6.10. Models were: GTR + G + I for second codon in COI and for 16S, HKY + G for 18S, SYM + G for first codon in COI, HKY + G + I for third codon in COI. Trees were reconstructed in MrBayes v. 3.2.1 [60] implementing PartitionFinder results which assigned codon position 1, 2, and 3 to different partitions. Two independent and simultaneous runs with flat prior probabilities and four chains were run for 5,000,000 generations. Trees were sampled every 1000th generation. Stationarity of each chain was checked with TRACER v.1.7 [61] and the first 25% discarded as burn-in after visualizing a plot of likelihood score. The remaining trees were summarized into a majority rule consensus tree with posterior probabilities (PP) indicating the support value for each clade.

2.4.2. Maximum Likelihood (ML)

The same dataset was used for phylogeny inference using the maximum likelihood criterion implemented in IQ-Tree on XSEDE v1.6.10 [62]. IQ-TREE was used to select models based on the Akaike information criterion (AIC), model was GTR + F + I + G4 for both partitions COI + 16S and 18S. IQ Tree was run through the CIPRES Science Gateway V3.3. Ultrafast bootstrap was performed in 10,000 iterations.

3. Results

The combined dataset had 1722 aligned positions (659 positions of COI, 552 positions of 16S rDNA, and 511 positions of 18S rDNA). After applying Gblocks, the new 16S rDNA alignment retained 415 positions (75%), 18S rDNA alignment retained 481 positions (95%), Gbloks was not applied to the COI alignment. Both Bayesian and Maximum likelihood approaches yielded trees with very similar topologies and node support (Figure 3 and Figure S1). The following differences between the resulting trees from the two analyses were observed: the polytomy comprising clades A, B and C in the Bayesian tree versus resolved and well supported relationships (A–C) in the ML tree; the polytomy comprising clades (A–E), (F–H), and I in the Bayesian tree versus resolved but very poorly supported relationships between these clades in the ML tree. Regardless of the method used, the following clades were obtained. Lumbrineridae is monophyletic (PP 1.00, BP 98). The following genera are monophyletic: Gallardoneris (clade D, PP 1.00, BP 100), Abyssoninoe (clade G, PP 1.00, BP 100), Ninoe (clade J, PP 1.00, BP 100), Augeneria (clade L, PP 1.00, BP 96), Lumbrineriopsis (clade M, PP 1.00, BP 97). Helmutneris (clade I), Hilbigneris (clade F), Lumbrinerides (clade K), and a single specimen that could not be attributed to any of the described genera, Lumbrineridae gen. sp. (clade C), were represented by a single species, thus their monophyly was not tested. The type genus of the family, Lumbrineris (clades A and H), and the genus Scoletoma (clades B and E) appeared polyphyletic. Lumbrineris mixochaeta formed a well-supported (PP 1.00, BP 100) clade with Scoletoma fragilis and Lumbrineridae gen. sp. while Lumbrineris latreilli, L. inftalta, and Lumbrineris sp. formed own clade (PP 0.89, BP 73) sister to Abyssoninoe/Hilbigneris clade (PP 0.85, BP 81). Nevertheless, these sister relationships were poorly supported (PP 0.60, BP 52). Scoletoma tetraura and S. zonata (clade E) were sister to the clade comprising Gallardoneris, L. mixochaeta, S. fragilis and Lumbrineridae gen. sp. although these relationships were also poorly supported (PP 0.81, BP 81). Three highly supported sister relationships were recovered in both analyses: Ninoe and Lumbrinerides (PP 0.99, BP 87), Augeneria and Lumbrineriopsis (PP 0.96, BP 74), and Gallardoneris and (L. mixochaeta, S. fragilis and Lumbrineridae gen. sp.) clade (PP 1.00, BP 98).

4. Discussion

Although our dataset was rather limited, covering only 12 out of 19 described genera and 26 species (~10% of total species count), certain clades and relationships were well supported. Most genera were found monophyletic and several of them were highly supported. Ninoe clade (J) comprised four species, all sharing the presence of the parapodial palmate branchiae in the anterior region of the body (Figure 1G). Augeneria clade (L) included three species, all sharing massive maxillae II with few rounded teeth and large maxillae IV with white central areas (Figure 2E). Specimens identified as Augeneria cf. tentaculata did not form a sub-clade withing the genus dues to large amount of missing sequence data (Table 2). Gallardoneris clade (D) included four specimens with four pairs of maxillae, maxillae IV with unpigmented central areas, and maxillae II with few rounded teeth and missing attachment lamellae. These specimens were provisionally identified as Gallardoneris iberica Martins, Carrera-Parra, Quintino & Rodrigues, 2012 [63] collected from the western African waters. Despite very similar morphology, all four specimens showed very divergent sequences indicating a possible case of cryptic speciation in the genus which should be investigated further based on larger sampling size. Lumbrineriopsis clade (M) included two species, both showing similar maxillary morphology with prolonged maxillary carriers and multidentate maxillae IV (Figure 2D). Abyssoninoe clade (G) comprised two species sharing the presence of anterior prolonged hooded hooks and fused maxillae IV and V–the two main diagnostic characters of the genus. Notably, a single specimen that was not identified to the genus level (Lumbrineridae gen. sp.) also exhibited joined maxillae IV and V and elongated anterior hooks. However, this specimen could not be assigned to Abyssoninoe due to the presence of very strongly sclerotized connecting plates and short maxillae II (significantly shorter than maxillae I). The latter two characters are not reported for any of Abyssoninoe species, including the type species, Abyssoninoe abyssorum (McIntosh, 1885) [8]. Furthermore, Oug et al. [6] noted that the fusion of maxillae IV and V occurs also in other genera and thus should be reconsidered as the main diagnostic character in Abyssoninoe. Lumbrineridae gen. sp. could potentially represent a new genus of lumbrinerids, however we suggest that the new genera are erected after complete revision of the existing system of the family.
Two most species-rich genera within Lumbrineridae, Lumbrineris and Scoletoma, were recovered as polyphyletic taxa forming two unrelated clades each. These two genera have very similar maxillary morphology (five pairs of maxillae, maxillae I and II almost equal in length, connecting plates present) and were split based on the presence of compound multidentate hooks (Figure 1C) in the former and only simple multidentate hooks in the later (Frame 1992). Lumbrineris latreilli, the type species of the genus, formed a clade with two other Lumbrineris species and this clade presumably can be considered the part of Lumbrineris sensu stricto. Nevertheless, L. latreilli is a species with problematic status. It has been originally described from the Atlantic Ocean off France [20] but later reported widely in the world [3]. Sequences of L. latreilli used in our analyses were downloaded from the GenBank and although at least one of them was obtained from a specimen collected from the South European Atlantic coast, the identification of this species requires further clarification. Scoletoma fragilis (O.F. Müller, 1776), the type species of the genus, formed a well-supported clade with L. mixochaeta and Lumbrineridae gen. sp., however we were not able to identify morphological characters common for these three taxa. Lack of own material and reliable published sequence data on several markers obtained from the same species prevented from including more species of Lumbrineris and Scoletoma into the analyses. Although our data indicate that both genera are polyphyletic and require revision, more complete dataset is needed for formal decision on the systematics of both genera.
Augeneria, Gallardoneris and Helmutneris, together with Gesaneris and Loboneris (both absent in the present analysis), were also seen as a group of closely related genera sharing maxillae III with unpigmented white central area [7] (Figure 2E). General architecture of maxillary apparatuses in these five genera is rather dissimilar. Loboneris has very thin and prolonged maxillary carriers and wing-shaped colorless maxillae IV. Gesaneris demonstrates maxillae II, significantly shorter than maxillae I, which is not characteristic for other genera in this group. Helmutneris has maxillae I and II almost equal in length but maxillae II bear numerous (6–7) pointed teeth, while in Augeneria and Gallardoneris, the maxillae II have only three rounded and widely distributed teeth. Maxillae of the latter two genera are most similar with each other, however in Augeneria, the basal parts of maxillae I form a clear locking system characteristic to all lumbrinerids [4] while in Gallardoneris, this system appears to be absent (pers. observation). Our results do not support close relationships between Augeneria, Gallardoneris and Helmutneris suggesting an independent origin of colorless maxillae IV at least in these three genera.
Lumbrinerides and Lumbrineriopsis were traditionally seen as closely related genera [7] due to their minute size (less than 1 mm in width), elongated prostomium (Figure 1B) and bidentate simple hooded hooks (Figure 1F)–a condition reported for these two genera only. Nonetheless, these genera did not form sister relationships on the present tree suggesting their independent miniaturization and acquisition of bidentate hooks. Maxillary apparatuses of Lumbrinerides and Lumbrineriopsis are also very dissimilar with short carriers, massive maxillae I and very short maxillae II in the former and elongated carriers and multidentate maxillae III in the latter. Notably, Lumbrineriopsis was sister to Augeneria while Lumbrinerides–sister to Ninoe, both relationships were highly supported on the molecular-based tree although we could not identify morphological characters supporting these two clades.
None of the morphological characters traditionally used in lumbrinerid systematics could be assigned to a clade higher than the genus level. The morphological characters used by Carrera-Parra [7] to define large groups of genera, such as the presence of connecting plates and only four pairs of maxillae did not support any of the clades recovered in our analyses. On the contrary, the genera showing these character states were scattered across the whole tree (clades A + B + C, E, F, and H with connecting plates and clades D, G, I, J + K, and L + M with four pairs of maxillae) suggesting their homoplasy (Figure 3).

5. Conclusions

Insufficient taxon sampling and moderate molecular data allowed only partial revision of Lumbrineridae based on molecular phylogeny results. Nevertheless, our data corroborate monophyletic status of the genera Abyssoninoe, Augeneria, Gallardoneris, Lumbrineriopsis, and Ninoe and indicate polyphyly of the genera Lumbrineris and Scoletoma. Being the type genus of the family, Lumbrineris requires further study with inclusion of higher number of species and subsequent definition of a monophyletic group inholding the type species, L. latreilli, as the carrier of the genus name.
Strongly supported relationships between several clades suggest that the characters, such as the presence of bidentate simple hooded hooks, non-pigmented whitish central areas in maxillae IV, multidentate maxillae IV, the presence of connecting plates and four or five pairs of maxillae have evolved several times independently within Lumbrineridae and do not represent exclusive homologies defining groups of closely related genera.

Supplementary Materials

The following are available online at www.mdpi.com/article/10.3390/d14020083/s1, Table S1: List of specimens used in this study with GenBank Accession numbers, BOLD process ID, and data on their sampling and storage, Table S2: Primer sequences and PCR parameters used for amplification of COI, 18S rDNA and 16S rDNA, Figure S1: Consensus tree from the Maximum likelihood analysis of the combined COI, 16S rDNA and 18S rDNA dataset; numbers on nodes indicate bootstrap support; capital letters correspond with the clades (A–M) discussed in the text. Colored bars indicate polyphyletic genera. Sequences of fourteen specimens of Lumbrineris mixochaeta were collapsed into a single triangle for better presentation.

Author Contributions

Conceptualization, N.B. and P.B.; methodology, P.B. and N.B.; formal analysis, P.B.; data curation, P.B. and N.B.; writing—original draft preparation, P.B. and N.B.; writing—review and editing, P.B. and N.B.; visualization, P.B. and N.B.; supervision, N.B.; project administration, P.B. and N.B.; funding acquisition, P.B. and N.B. All authors have read and agreed to the published version of the manuscript.

Funding

The reported study was funded by RFBR according to the research projects No. 20-34-90053 and No. 19-04-00501.

Institutional Review Board Statement

Not applicable.

Informed Consent Statement

Not applicable.

Data Availability Statement

Statement: Sequences obtained in this study are uploaded to GenBank and BOLD (Table S2).

Acknowledgments

We would like to thank the staff of the University Museum of Bergen, University of Bergen (UM, UiB), Jon A. Kongsrud, Endre Willassen, Tom Alvestad and Katrine Kongshavn for providing access and assisting in sorting, identification and curating of the diverse collections of lumbrinerids used in the present study. We are also grateful to Irine Ekimova and Dmitry Schepetov (Moscow State University), Louise Lindblom and Kenneth Meland (UiB) for help in molecular laboratory work and with sequencing; Irene Heggstad for help with SEM (UiB); Dina Gilyazetdinova and Dmitry Korost (Petroleum Geology department of Faculty of Geology, Moscow State University) for assistance with micro-computed tomography; Nikolay Neretin (Moscow State University) for providing access to materials from the White Sea Biological Station collection; and Evind Oug (Norwegian Institute of Water Research) for identification of some specimens. We are very grateful to the NORAD-funded EAF-Nansen programme, and the Guinea Current Large Marine Ecosystem (GCLME) and Canary Current Large Marine Ecosystem (CCLME) partners for depositing unsorted and unidentified samples in the University Museum of Bergen. We particularly thank Jens-Otto Krakstad (Institute of Marine Research, Norway) for their coordinating role in the cooperation between EAF-Nansen and UM, UiB. Sorting, identification and barcoding of west African specimens was supported by the JRS Biodiversity Foundation. Sorting, identification and generation of COI sequences for a number of specimens from the Nordic Seas were performed through the projects supported by the Norwegian Taxonomy Initiative (Polychaetes in Skagerrak, project no. 70184216; Polychaetes in the Norwegian Sea, project no. 70184227) in collaboration with the Norwegian Barcode of Life Network (NorBOL) funded by the Research Council of Norway (project no. 226134/F50) and the Norwegian Biodiversity Information Centre (project no. 70184209). Examination of lumbrinerid specimens in the Invertebrate collection, University Museum of Bergen by P.B. was supported via the Cooperation Programme between Norway and Russia “Multidisciplinary EDUcation and reSearch in mArine biology in Norway and Russia” (MEDUSA)–funded by Direktoratet for høyere utdanning og kompetanse (HK-dir).

Conflicts of Interest

The authors declare no conflict of interest.

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Figure 1. Morphology of Lumbrineridae, live specimen photograph (A), scanning electron microscopy micrographs (BG). (A) Scoletoma fragilis, lateral view of anterior part of the body, pr—prostomium ©, Vedenin, A.; (B) Lumbrinerides sp., ventral view of anterior fragment, pr—prostomium, per—peristomium; (C) Lumbrineris sp., limbate chaetae and compound hooks from the 4th parapodium, arrowhead indicates the articulation in the compound hook; (D) Lumbrinerides sp., limbate chaetae and simple hooks from the 4th parapodium; (E) Lumbrineris sp., distal part of the multidentate hooded hook from the 30th parapodium, arrowheads indicate numerous denticles, hood is slightly open; (F) Lumbrineriopsis sp., distal part of the bidentate hook, arrowheads indicate two equal denticles, hood is partly removed; (G), Ninoe armoricana, lateral parapodia with branchiae (arrowheads) from the middle of the body.
Figure 1. Morphology of Lumbrineridae, live specimen photograph (A), scanning electron microscopy micrographs (BG). (A) Scoletoma fragilis, lateral view of anterior part of the body, pr—prostomium ©, Vedenin, A.; (B) Lumbrinerides sp., ventral view of anterior fragment, pr—prostomium, per—peristomium; (C) Lumbrineris sp., limbate chaetae and compound hooks from the 4th parapodium, arrowhead indicates the articulation in the compound hook; (D) Lumbrinerides sp., limbate chaetae and simple hooks from the 4th parapodium; (E) Lumbrineris sp., distal part of the multidentate hooded hook from the 30th parapodium, arrowheads indicate numerous denticles, hood is slightly open; (F) Lumbrineriopsis sp., distal part of the bidentate hook, arrowheads indicate two equal denticles, hood is partly removed; (G), Ninoe armoricana, lateral parapodia with branchiae (arrowheads) from the middle of the body.
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Figure 2. Morphology of lumbrinerid jaws: mandibles and maxillae, light photographs of dissected jaws (A,CE), 3D reconstruction of jaws based on micro-CT scans. (A) Lumbrineris sp. showing complete set of maxillary structures; (B) Lumbrineris sp., maxillary carriers partly reconstructed, connecting plates and attachment lamellae omitted; (C) Hilbigneris sp. maxillary apparatus showing extremely sclerotized connecting plates; (D) Lumbrineriopsis sp. distal part of the maxillary apparatus showing multidentate maxillae IV; (E) Augeneria albidentata, part of the maxillary apparatus showing right massive maxilla II and maxilla IV with non-pigmented white central area. al—attachment lamella; cp—connecting plate; Mc—maxillary carriers; Mnd—mandibles; MI–MV—maxillae I–V.
Figure 2. Morphology of lumbrinerid jaws: mandibles and maxillae, light photographs of dissected jaws (A,CE), 3D reconstruction of jaws based on micro-CT scans. (A) Lumbrineris sp. showing complete set of maxillary structures; (B) Lumbrineris sp., maxillary carriers partly reconstructed, connecting plates and attachment lamellae omitted; (C) Hilbigneris sp. maxillary apparatus showing extremely sclerotized connecting plates; (D) Lumbrineriopsis sp. distal part of the maxillary apparatus showing multidentate maxillae IV; (E) Augeneria albidentata, part of the maxillary apparatus showing right massive maxilla II and maxilla IV with non-pigmented white central area. al—attachment lamella; cp—connecting plate; Mc—maxillary carriers; Mnd—mandibles; MI–MV—maxillae I–V.
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Figure 3. Consensus tree from the Bayesian analysis of the combined COI, 16S rDNA and 18S rDNA dataset; numbers on nodes indicate Bayesian posterior probabilities; capital letters (AM) correspond with the clades discussed in the text. Colored bars indicate polyphyletic genera. Sequences of fourteen specimens of Lumbrineris mixochaeta were collapsed into a single triangle for better presentation. Color codes for maxillary elements: grey—maxillary carriers, yellow—maxillae I, green—maxillae II, light blue—maxillae III, navy—maxillae IV, purple—maxillae V, red—connecting plates, orange—attachment lamellae of maxillae I.
Figure 3. Consensus tree from the Bayesian analysis of the combined COI, 16S rDNA and 18S rDNA dataset; numbers on nodes indicate Bayesian posterior probabilities; capital letters (AM) correspond with the clades discussed in the text. Colored bars indicate polyphyletic genera. Sequences of fourteen specimens of Lumbrineris mixochaeta were collapsed into a single triangle for better presentation. Color codes for maxillary elements: grey—maxillary carriers, yellow—maxillae I, green—maxillae II, light blue—maxillae III, navy—maxillae IV, purple—maxillae V, red—connecting plates, orange—attachment lamellae of maxillae I.
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Table 1. Accepted genera of Lumbrineridae with the number of species in each genus and number of species used in the phylogenetic analysis in the present study. Species count for each genus follows Oug et al. [3].
Table 1. Accepted genera of Lumbrineridae with the number of species in each genus and number of species used in the phylogenetic analysis in the present study. Species count for each genus follows Oug et al. [3].
GenusAuthorType SpeciesNumber of SpeciesNumber of Species Used in This Study
AbyssoninoeOrensanz, 1990 [2]Lumbriconereis abyssorum McIntosh, 1885 [8]82
ArabellonerisHartmann-Schröder, 1979 [9]Arabelloneris broomensis Hartmann-Schröder 1979 [9]20
AugeneriaMonro, 1930 [10]Augeneria tentaculata Monro, 1930 [10]93
CenogenusChamberlin, 1919 [11]Cenogenus descendens Chamberlin, 1919 [11]120
ErannoKinberg, 1865 [12]Eranno bifrons Kinberg, 1865 [12]110
GallardonerisCarrera-Parra, 2006 [7] Lumbrineris shiinoi Gallardo, 1968 [13]34
HelmutnerisCarrera-Parra, 2006 [7]Lumbriconereis flabellicola Fage, 1936 [14]31
HilbignerisCarrera-Parra, 2006 [7]Hilbigneris pleijeli Carrera-Parra, 2006 [7]31
KuwaitaMohammad, 1973 [15]Kuwaita magna Mohammad, 1973 [15]50
LobonerisCarrera-Parra, 2006 [7]Lumbrineris pterignatha Gallardo, 1968 [13] 10
LumbricalusFrame, 1992 [16]Lumbriconereis januarii Grube, 1878 [17]90
LumbrineridesOrensanz, 1973 [18]Lumbrinerides gesae Orensanz, 1973 [18]161
LumbrineriopsisOrensanz, 1973 [18]Lumbriconereis mucronata Ehlers, 1908 [19] 52
LumbrinerisBlainville, 1828 [20]Lumbrineris latreilli Audouin & Milne-Edwards, 1833 [21] ~ 504
LysareteKinberg, 1865 [12]Lysarete brasiliensis Kinberg, 1865 [12]30
NinoeKinberg, 1865 [12]Ninoe chilensis Kinberg, 1865 [12]334
ScoletomaBlainville, 1828 [20]Lumbricus fragilis O.F. Müller, 1776 [22]253
SergionerisCarrera-Parra, 2006 [7]Lumbrineris nagae Gallardo, 1968 [13]10
Lumbrineridae gen. sp. -1
19926
Table 2. List of taxa used in the phylogenetic analyses with BOLD process IDs and GenBank accession numbers.
Table 2. List of taxa used in the phylogenetic analyses with BOLD process IDs and GenBank accession numbers.
CladeTaxonAuthorBOLD Process IDGenBank Accession NumberSource
COI16S 18S
ALumbrineris mixochaetaOug, 1998 [31]POLNB1550-15OM237808OM237844OM312047This study
ALumbrineris mixochaetaOug, 1998POLNB1560-15OM237807OM237843OM312046This study
ALumbrineris mixochaetaOug, 1998POLNB1562-15OM237806OM237842OM312045This study
ALumbrineris mixochaetaOug, 1998EUNI007-21OM237805OM237841OM312044This study
ALumbrineris mixochaetaOug, 1998LUPH004-21OM237804OM237840OM312043This study
ALumbrineris mixochaetaOug, 1998LUPH005-21-OM237831OM312034This study
ALumbrineris mixochaetaOug, 1998LUPH006-21OM237803OM237839OM312042This study
ALumbrineris mixochaetaOug, 1998LUPH007-21OM237802OM237838OM312041This study
ALumbrineris mixochaetaOug, 1998LUPH008-21OM237801OM237837OM312040This study
ALumbrineris mixochaetaOug, 1998LUPH009-21OM237800OM237836OM312039This study
ALumbrineris mixochaetaOug, 1998LUPH010-21OM237799OM237835OM312038This study
ALumbrineris mixochaetaOug, 1998LUPH011-21OM237798OM237834OM312037This study
ALumbrineris mixochaetaOug, 1998LUPH012-21-OM237833OM312036This study
ALumbrineris mixochaetaOug, 1998LUPH013-21-OM237832OM312035This study
BScoletoma fragilis(O.F. Müller, 1776) [22]LUPH016-21OM237813-OM312052This study
BScoletoma fragilis(O.F. Müller, 1776)POLNB827-14OM237814--This study
CLumbrineridae gen. sp. MIWAP303-13OM237794OM237827OM312031This study
DGallardoneris sp. MIWAP377-13OM237790OM237824-This study
DGallardoneris sp. MIWAP379-13OM237788OM237822OM312027This study
DGallardoneris sp. MIWAP380-13OM237789OM237823OM312028This study
DGallardoneris sp. MIWAP376-13OM237789OM237823OM312026
EScoletoma tetraura(Schmarda, 1861) [1] GU362689GU362682-[32]
EScoletoma zonata(Johnson, 1901) [33] -HM746713HM746727[34]
FHilbigneris sp. MIWAP353-13OM237793OM237826-This study
FHilbigneris sp. MIWAP352-13OM237792OM237825OM312030This study
FHilbigneris sp. LUPH014-21OM237791-OM312029This study
GAbyssoninoe cf. hibernica(McIntosh, 1903) [35]SKAG032-11OM237776--This study
GAbyssoninoe cf. scopa(Fauchald, 1974) [36]POLNB779-14OM237778--This study
GAbyssoninoe cf. scopa(Fauchald, 1974)POLNB1742-15OM237777OM237815OM312019This study
HLumbrineris inflataMoore, 1911 [37] BOLD Process ID HZPLY357AY838832AY525622[26,38]
HLumbrineris latreilliAudouin and Milne-Edwards, 1834 [21] KR916859AY838833-[27,29]
HLumbrineris sp. MIWAP289-13OM237809OM237845OM312048This study
HLumbrineris sp. MIWAP291-13OM237811OM237846OM312050This study
HLumbrineris sp. MIWAP345-13OM237810-OM312049This study
IHelmutneris vadumBorisova & Budaeva, 2020 [39]LUPH001-20MT763201MT763203-
IHelmutneris vadumBorisova & Budaeva, 2020LUPH002-20MT763200MT763202-
JNinoe armoricanaGlémarec, 1968 [40]MIWAP295-13OM237812OM237847OM312051This study
JNinoe armoricanaGlémarec, 1968 KT307669--[41]
JNinoe chilensisKinberg, 1865 [12] JF731019--[42]
JNinoe leptognathaEhlers, 1900 [43] JF731020--[42]
Ninoe nigripesVerrill, 1873 [44] AY838869AY838837AY838852[26,38]
KLumbrinerides sp. MIWAP325-13OM237795OM237828OM312032This study
LAugeneria albidentata(Ehlers, 1908) [19] MIWAP298-13OM237780-OM312020This study
LAugeneria albidentata(Ehlers, 1908)MIWAP334-13OM237779OM237816-This study
LAugeneria albidentata(Ehlers, 1908)MIWAP335-13OM237781OM237817OM312021This study
LAugeneria algida(Wirén, 1901)EUNI006-21OM237783OM237819OM312023This study
LAugeneria algida(Wirén, 1901)LUPH003-21OM237782OM237818OM312022This study
LAugeneria cf. tentaculataMonro, 1930POLNB591-14OM237786--This study
LAugeneria cf. tentaculataMonro, 1930POLNB932-14OM237784OM237820OM312024This study
LAugeneria cf. tentaculataMonro, 1930POLNB1745-15OM237785-OM312025This study
MLumbrineriopsis sp. EUNI012-21OM237796OM237829OM312033This study
MLumbrineriopsis sp. LUPH015-21-OM237830-This study
MLumbrineriopsis sp. MIWAP330-13OM237797--This study
Glycera alba(O.F. Müller, 1776) [22] KF369131DQ779615DQ779651[45,46]
Eunice rubraGrube, 1856 [12] KF808171GQ478132GQ497478[47,48]
Nothria conchylega(Sars, 1835) [49] HQ023895KJ027342KJ027382[50,51]
Tainokia logachevaeRavara & Cunha, 2017 [52] MF795582MF795579MF795580[52]
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Borisova, P.; Budaeva, N. First Molecular Phylogeny of Lumbrineridae (Annelida). Diversity 2022, 14, 83. https://doi.org/10.3390/d14020083

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Borisova P, Budaeva N. First Molecular Phylogeny of Lumbrineridae (Annelida). Diversity. 2022; 14(2):83. https://doi.org/10.3390/d14020083

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