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Fedorov D, Knorre D, Kolbasova G, Neretina T. Mitochondrial genome of Pseudopotamilla reniformis (Annelida: Sabellidae). Mitochondrial DNA B Resour 2023; 8:149-151. [PMID: 36685650 PMCID: PMC9848243 DOI: 10.1080/23802359.2022.2164230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Here, we report the complete mitochondrial genome of sabellid Pseudopotamilla reniformis (Bruguière, 1789) (16,408 bp) and comprised of two ribosomal RNAs, the ubiquitous set of 13 protein-coding sequences, and 22 tRNAs. The order of protein-coding genes is consistent with the proposed conserved pattern, which contradicts recent discovery in other members of the family (Sabella spallanzanii in Daffe et al., 2021 and Bispira melanostigma in Hornfeck et al., 2022).
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Affiliation(s)
- Dmitry Fedorov
- Skolkovo Institute of Science and Technology, Moscow, Russia
| | - Dmitry Knorre
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Glafira Kolbasova
- Pertsov White Sea Biological Station, Lomonosov Moscow State University, Moscow, Russia
| | - Tatiana Neretina
- Skolkovo Institute of Science and Technology, Moscow, Russia,Institute for Information Transmission Problems (Kharkevich Institute), Russian Academy of Sciences, Moscow, Russia,CONTACT Tatiana Neretina Institute for Information Transmission Problems (Kharkevich Institute), Russian Academy of Sciences, Moscow, Russia
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Yi TL, Pei MT, Xu ZW, Yang DQ. The complete mitochondrial genome of Hemiclepsis yangtzenensis (Clitellata: Glossiphoniidae). Mitochondrial DNA B Resour 2022; 7:772-774. [PMID: 35558173 PMCID: PMC9090425 DOI: 10.1080/23802359.2022.2070039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We present the complete mitochondrial genome sequence of a recently described new leech species named Hemiclepsis yangtzenensis Yang & Bolotov 2021 collected in central China. The mitochondrial genome is 14,984 bp in length and consists of 13 protein-coding genes, 2 ribosomal RNA genes, and 22 transfer RNA genes, all of which are encoded on a single strand. It exhibited a strong A + T bias of 72.87%. There is a large non-coding region (614 bp) located between the tRNA-Arg and tRNA-His genes, wherein we identified 40 short dispersed repeats, 13–22 bp long, 8 of which were direct, 20 inverted, and 12 palindromic. Phylogenetic analysis of 20 Hirudinea mitogenome sequences resolved monophyletic Glossiphoniidae, and H. yangtzenensis formed a sister lineage with Glossiphonia concolor.
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Affiliation(s)
- Ti-Lin Yi
- School of Animal Science, Yangtze University, Jingzhou, China
- Hubei Provincial Engineering and Technology Research Center for Monopterus albus, Jingzhou, China
| | | | - Zhi-Wei Xu
- School of Animal Science, Yangtze University, Jingzhou, China
| | - Dai-Qing Yang
- School of Animal Science, Yangtze University, Jingzhou, China
- Hubei Provincial Engineering and Technology Research Center for Monopterus albus, Jingzhou, China
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Kobayashi G, Itoh H, Nakajima N. First mitochondrial genomes of Capitellidae and Opheliidae (Annelida) and their phylogenetic placement. Mitochondrial DNA B Resour 2022; 7:577-579. [PMID: 35386629 PMCID: PMC8979498 DOI: 10.1080/23802359.2022.2056537] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Affiliation(s)
- Genki Kobayashi
- Seto Marine Biological Laboratory, Field Science Education and Research Center, Kyoto University, Nishimuro, Japan
| | - Hajime Itoh
- National Institute for Environmental Studies, Tsukuba, Japan
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Cejp B, Ravara A, Aguado MT. First mitochondrial genomes of Chrysopetalidae (Annelida) from shallow-water and deep-sea chemosynthetic environments. Gene 2022; 815:146159. [PMID: 34995739 DOI: 10.1016/j.gene.2021.146159] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 11/30/2021] [Accepted: 12/10/2021] [Indexed: 02/07/2023]
Abstract
Among Annelida, Chrysopetalidae is an ecologically and morphologically diverse group, which includes shallow-water, deep-sea, free-living, and symbiotic species. Here, the four first mitochondrial genomes of this group are presented and described. One of the free-living shallow-water species Chrysopetalum debile (Chrysopetalinae), one of the yet undescribed free-living deep-sea species Boudemos sp., and those of the two deep-sea bivalve endosymbionts Craseoschema thyasiricola and Iheyomytilidicola lauensis (Calamyzinae). An updated phylogeny of Chrysopetalidae is performed, which supports previous phylogenetic hypotheses within Chrysopetalinae and indicates a complex ecological evolution within Calamyzinae. Additionally, analyses of natural selection pressure in the four mitochondrial genomes and additional genes from the two shallow-water species Bhawania goodei and Arichlidon gathofi were performed. Relaxed selection pressure in the mitochondrion of deep-sea and symbiotic species was found, with many sites under selection identified in the COX3 gene of deep-sea species.
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Affiliation(s)
- Benjamin Cejp
- Animal Evolution and Biodiversity, Johann-Friedrich-Blumenbach Institute for Zoology & Anthropology, Georg-August-University Göttingen, 37073, Germany.
| | - Ascensão Ravara
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
| | - M Teresa Aguado
- Animal Evolution and Biodiversity, Johann-Friedrich-Blumenbach Institute for Zoology & Anthropology, Georg-August-University Göttingen, 37073, Germany.
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Hornfeck CJ, Faurie TC, Hodges LL, Janosik AM, Bogantes VE. The complete mitochondrial genome of the marine feather duster, Bispira melanostigma (Annelida: Sabellidae). Mitochondrial DNA B Resour 2021; 7:51-53. [PMID: 34926821 PMCID: PMC8676584 DOI: 10.1080/23802359.2021.2008840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
The marine feather duster, Bispira melanostigma (Schmarda, 1861), is a tube-dwelling annelid that contributes to ecological and biogeochemical processes in benthic communities. Due to the lack of scientific data, B. melanostigma is often difficult to distinguish from other species of marine worms through morphological characteristics alone. In this study, we report the complete mitochondrial genome of Bispira melanostigma. The complete mitogenome contained 20,624 bp length with a total of 13 protein-encoding genes, 21 tRNA, and 2 rRNA genes. Phylogenetic analysis of the complete mitochondrial DNA of B.melanostigma can aid in the understanding of evolutionary relationships within Sabellidae.
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Affiliation(s)
| | - Taber C Faurie
- Department of Biology, University of West Florida, Pensacola, FL, USA
| | - Logan L Hodges
- Department of Biology, University of West Florida, Pensacola, FL, USA
| | - Alexis M Janosik
- Department of Biology, University of West Florida, Pensacola, FL, USA
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Mitochondrial genomes of two Polydora (Spionidae) species provide further evidence that mitochondrial architecture in the Sedentaria (Annelida) is not conserved. Sci Rep 2021; 11:13552. [PMID: 34193932 PMCID: PMC8245539 DOI: 10.1038/s41598-021-92994-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 06/18/2021] [Indexed: 12/15/2022] Open
Abstract
Contrary to the early evidence, which indicated that the mitochondrial architecture in one of the two major annelida clades, Sedentaria, is relatively conserved, a handful of relatively recent studies found evidence that some species exhibit elevated rates of mitochondrial architecture evolution. We sequenced complete mitogenomes belonging to two congeneric shell-boring Spionidae species that cause considerable economic losses in the commercial marine mollusk aquaculture: Polydora brevipalpa and Polydora websteri. The two mitogenomes exhibited very similar architecture. In comparison to other sedentarians, they exhibited some standard features, including all genes encoded on the same strand, uncommon but not unique duplicated trnM gene, as well as a number of unique features. Their comparatively large size (17,673 bp) can be attributed to four non-coding regions larger than 500 bp. We identified an unusually large (putative) overlap of 14 bases between nad2 and cox1 genes in both species. Importantly, the two species exhibited completely rearranged gene orders in comparison to all other available mitogenomes. Along with Serpulidae and Sabellidae, Polydora is the third identified sedentarian lineage that exhibits disproportionally elevated rates of mitogenomic architecture rearrangements. Selection analyses indicate that these three lineages also exhibited relaxed purifying selection pressures.
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Abstract
Sabellida Levinsen, 1883 is a large morphologically uniform group of sedentary annelids commonly known as fanworms. These annelids live in tubes made either of calcareous carbonate or mucus with agglutinated sediment. They share the presence of an anterior crown consisting of radioles and the division of the body into thorax and abdomen marked by a chaetal and fecal groove inversion. This study synthesises the current state of knowledge about the diversity of fanworms in the broad sense (morphological, ecological, species richness), the species occurrences in the different biogeographic regions, highlights latest surveys, provides guidelines for identification of members of each group, and describe novel methodologies for species delimitation. As some members of this group are well-known introduced pests, we address information about these species and their current invasive status. In addition, an overview of the current evolutionary hypothesis and history of the classification of members of Sabellida is presented. The main aim of this review is to highlight the knowledge gaps to stimulate research in those directions.
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