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Mitochondrial Genome of the Freshwater Annelid Manayunkia Occidentalis (Sabellida: Fabriciidae)

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Mitochondrial Genome of the Freshwater Annelid Manayunkia Occidentalis (Sabellida: Fabriciidae) Mitochondrial genome of the freshwater annelid Manayunkia occidentalis (Sabellida: Fabriciidae) Tilic, Ekin; Atkinson, Stephen D.; Rouse, Greg W. Published in: Mitochondrial DNA Part B: Resources DOI: 10.1080/23802359.2020.1815604 Publication date: 2020 Document version Publisher's PDF, also known as Version of record Document license: CC BY Citation for published version (APA): Tilic, E., Atkinson, S. D., & Rouse, G. W. (2020). Mitochondrial genome of the freshwater annelid Manayunkia occidentalis (Sabellida: Fabriciidae). Mitochondrial DNA Part B: Resources, 5(3), 3295-3297. https://doi.org/10.1080/23802359.2020.1815604 Download date: 27. sep.. 2021 Mitochondrial DNA Part B Resources ISSN: (Print) (Online) Journal homepage: https://www.tandfonline.com/loi/tmdn20 Mitochondrial genome of the freshwater annelid Manayunkia occidentalis (Sabellida: Fabriciidae) Ekin Tilic , Stephen D. Atkinson & Greg W. Rouse To cite this article: Ekin Tilic , Stephen D. Atkinson & Greg W. Rouse (2020) Mitochondrial genome of the freshwater annelid Manayunkiaoccidentalis (Sabellida: Fabriciidae), Mitochondrial DNA Part B, 5:3, 3295-3297, DOI: 10.1080/23802359.2020.1815604 To link to this article: https://doi.org/10.1080/23802359.2020.1815604 © 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. Published online: 03 Sep 2020. Submit your article to this journal Article views: 272 View related articles View Crossmark data Citing articles: 2 View citing articles Full Terms & Conditions of access and use can be found at https://www.tandfonline.com/action/journalInformation?journalCode=tmdn20 MITOCHONDRIAL DNA PART B 2020, VOL. 5, NO. 3, 3295–3297 https://doi.org/10.1080/23802359.2020.1815604 MITOGENOME ANNOUNCEMENT Mitochondrial genome of the freshwater annelid Manayunkia occidentalis (Sabellida: Fabriciidae) Ekin Tilica,b , Stephen D. Atkinsonc and Greg W. Rouseb aInstitute of Evolutionary Biology, University of Bonn, Bonn, Germany; bScripps Institution of Oceanography, University of California, San Diego, CA, USA; cDepartment of Microbiology, Oregon State University, Corvallis, OR, USA ABSTRACT ARTICLE HISTORY Here, we report the 15,103 bp mitochondrial genome of the freshwater fabriciid tubeworm Manayunkia Received 29 July 2020 occidentalis. We recovered 13 protein-coding genes, 2 rRNA, and 22 tRNA. The gene order is consistent Accepted 22 August 2020 with the conserved pattern observed in most annelids. KEYWORDS Annelida; mitoge- nome; polychaete Manayunkia occidentalis (Atkinson et al. 2020) is a freshwater using a DNeasy Blood and Tissue kit (Qiagen Inc., Valencia, fabriciid that has an important role in the complex life cycles CA) according to the manufacturer’s protocol. Due to low of commercially important, salmonid-infecting, myxozoan total DNA recovered, DNA from the three annelids was parasites (Bartholomew et al. 2006; Atkinson et al. 2020). pooled, and a library was prepared using a Wafergen PrepX Also, M. occidentalis is one of the few freshwater annelid spe- Total Genomic DNA kit (Takara Bio USA, Mountain View, CA). cies (outside Clitellata), and forms a clade with the marine- DNA was sequenced with 150 bp paired-end reads on an dwelling Echinofabricia, which is sister to the other Illumina HiSeq3000 platform (Illumina, San Diego, CA) at Fabriciidae (Huang et al. 2011). Fabriciidae is one of three Oregon State University’s Center for Genome Research and taxa within Sabellida, and is sister to Sabellidae (feather- Biocomputing. duster worms) and Serpulidae (calcareous tube worms) (Tilic The complete circular mitochondrial genome of M. occi- et al. 2020). As next-gen sequencing methods become more dentalis was de novo assembled with Novoplasty v.4.0 common, the number of available mitochondrial genomes for (Dierckxsens et al. 2017) and MitoFinder v.1.3 (Allio et al. annelids is increasing rapidly. However, complete mitochon- 2020) from a randomly sampled subset of total genomic drial genome sequences are not necessarily useful to resolve reads (1,905,901 paired end). Both methods recovered one deep nodes of annelid phylogeny (Figure 1) (Weigert et al. identical, circular mtDNA contig of the entire mitochondrial 2016), but they can reveal in-group relationships among genome. For Novoplasty, the published COI sequence of M. annelid clades at various levels of inclusiveness (Li et al. occidentalis (MN991228) was used as a seed sequence. The 2015; Zhang et al. 2018). Furthermore, the arrangement of average coverage of the assembly was 82.62Â. The mito- protein-coding mitochondrial genes and tRNAs is an add- chondrial genome was annotated using the annotation pipe- itional dataset that can help identify conserved and novel line integrated into MitoFinder. gene arrangements in deep phylogenetic lineages (Weigert Nucleotide sequences of protein-coding genes of 12 et al. 2016). Of the 77 available annelid mitogenomes, 33 are annelids belonging to Sedentaria were chosen from available from Clitellata, 13 from Siboglinidae, and 18 from Aciculata. mitochondrial genomes, together with M. occidentalis and an There are no complete mitochondrial genomes available for outgroup annelid, Marphysa sanguinea (Montagu 1813). the vast majority of annelid taxa. Herein we present the first These were aligned with MAFFT (Katoh and Standley 2013), mitochondrial genome for Fabriciidae. The only other mito- and a maximum-likelihood analysis of the concatenated chondrial genome available for Sabellida is that of the supermatrix was conducted with IQTree (Nguyen et al. 2015). Christmas tree worm Spirobranchus giganteus (Pallas Substitution models and partitions were determined 1766) (Serpulidae). automatically. Specimens were obtained from a laboratory culture of The mitochondrial genome of M. occidentalis (GenBank annelids, sourced from the Klamath River, California Accession MT662116) is 15,103 bp long. The average length (4152002.600N 12248037.400W). Three individuals were har- of the other 77 available annelid mitochondrial genomes is vested and frozen at À80 C until their DNA was extracted 15,404 bp; with Spirobranchus giganteus having the longest CONTACT Ekin Tilic [email protected] Institute of Evolutionary Biology, University of Bonn, Bonn, Germany ß 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 3296 E. TILIC ET AL. Figure 1. Maximum likelihood (ML) tree based on the concatenated nucleotide sequences of 13 mitochondrial protein-coding genes. Bootstrap support values are indicated at each node. Marphysa sanguinea (KF733802) was chosen as an outgroup. (22,058 bp) and Erpobdella octoculata the shortest (14,407 bp). Acknowledgements The GC content of the M. occidentalis mitochondrial genome Authors thank Julie Alexander (OSU) for field collection and maintenance is 28.33%. of lab mesocosms of annelids, and Ben Americus (OSU) for sampling and We identified 13 protein coding genes, 2 rRNAs and 22 preparing individuals for sequencing. tRNAs. The mitochondrial gene order in M. occidentalis is con- sistent with the pattern observed in most annelids (Weigert et al. 2016). Interestingly, the phylogenetically closest mitoge- Disclosure statement nome to M. occidentalis is that of Spirobranchus giganteus, ’ which has a unique gene order and is divergent from other No potential conflict of interest was reported by the author(s). annelids (Seixas et al. 2017). This explains the placement and long branch of S. giganteus in Figure 1, and in it not being Funding recovered as sister group to M. occidentalis. As more annelid mitogenomes become available, more exceptions to the con- ET was supported, in part, by a postdoctoral fellowship from the German Research Foundation [DFG TI 973/1-1]. Sequencing was funded by served gene order are being revealed: another example is Research Grant No. [IS-5001-17C] from BARD, The United States-Israel the small meiofaunal annelid Dimorphilus gyrociliatus Binational Agricultural Research and Development Fund to SA. (Schmidt 1857), which has a different gene order and lacks trnS1 (David and Halanych 2017). To better understand the evolution of mitochondrial gene order in Annelida, more ORCID ’ complete mitochondrial genomes spanning the group s Ekin Tilic http://orcid.org/0000-0003-0463-322X phylogenetic diversity, and representing diverse taxa need to Stephen D. Atkinson http://orcid.org/0000-0002-7180-6672 be sequenced. Greg W. Rouse http://orcid.org/0000-0001-9036-9263 MITOCHONDRIAL DNA PART B 3297 Data availability statement Huang D, Fitzhugh K, Rouse GW. 2011. Inference of phylogenetic rela- tionships within Fabriciidae (Sabellida, Annelida) using molecular and All sequence data included and generated in the study are deposited to morphological data. Cladistics. 27(4):356–379. NCBI GenBank (https://www.ncbi.nlm.nih.gov) and their accession num- Katoh K, Standley DM. 2013. MAFFT multiple sequence alignment soft- bers are listed in Figure 1. ware version 7: improvements in performance and usability. Mol Biol Evol. 30(4):772–780. Li Y, Kocot KM, Schander C, et al. 2015. Mitogenomics reveals phylogeny References and repeated motifs in control regions of the deep-sea family Siboglinidae (Annelida). Mol Phylogenet Evol. 85:221–229. Allio R, Schomaker-Bastos A, Romiguier J, Prosdocimi
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