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Jo SH, Koo J, Park KH. Complete mitochondrial genome of the Korean endemic springtail Tomocerus caputiviolaceus Lee 1975 (Collembola: Tomoceridae). Mitochondrial DNA B Resour 2024; 9:178-181. [PMID: 38288250 PMCID: PMC10823885 DOI: 10.1080/23802359.2024.2305407] [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] [Received: 09/27/2023] [Accepted: 01/09/2024] [Indexed: 01/31/2024] Open
Abstract
The complete mitochondrial genome of Tomocerus caputiviolaceus was sequenced and assembled. The complete mitochondrial genome is 15,519 bp in length. The mitogenome contained 37 genes, including 13 protein-coding genes (PCGs), 22 tRNAs, and two rRNAs. In phylogenetic analysis based on the nucleotide sequences of 13 PCGs, T. caputiviolaceus is closely related to Tomocerus qinae Yu, Yao & Hu, 2016, both of which belong to the genus Tomocerus within the family Tomoceridae.
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Affiliation(s)
- Seon Hwa Jo
- Division of Science Education and Institute of Science Education, Jeonbuk National University, Jeonju, South Korea
| | - Jachoon Koo
- Division of Science Education and Institute of Science Education, Jeonbuk National University, Jeonju, South Korea
| | - Kyung-Hwa Park
- Division of Science Education and Institute of Science Education, Jeonbuk National University, Jeonju, South Korea
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The complete mitochondrial genome and novel gene arrangement in Nesodiprion zhejiangensis Zhou & Xiao (Hymenoptera: Diprionidae). Funct Integr Genomics 2023; 23:41. [PMID: 36650401 DOI: 10.1007/s10142-022-00959-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/29/2022] [Accepted: 12/29/2022] [Indexed: 01/19/2023]
Abstract
The complete mitochondrial genome (mitogenome) of the sawfly, Nesodiprion zhejiangensis Zhou & Xiao, was sequenced, assembled, and deposited in GenBank (Accession Number: OM501121). The 15,660 bp N. zhejiangensis mitogenome encodes for 2 ribosomal RNAs (rrnL and rrnS), 22 transfer RNAs (tRNAs), 13 protein-coding genes (PCGs), and an AT-rich region of 450 bp in length. The nucleotide composition is biased toward adenine and thymine (A + T = 81.8%). Each PCG is initiated by an ATN codon, except for cox2, which starts with a TTG. Of 13 PCGs, 9 have a TAA termination codon, while the remainder terminate with a TAG or a single T. All tRNAs have the classic cloverleaf structure, except for the dihydrouridine (DHU) arm of tRNAval, which forms a simple loop. There are 49 helices belonging to 6 domains in rrnL and 30 helices belonging to 4 domains in rrnS. In comparison to the ancestral architecture, N. zhejiangensis has the most rearranged mitogenome in Symphyta, in which rearrangement events of local inversion and transposition are identified in three gene clusters. Specifically, the main hotspot of gene rearrangement occurred between rrnS and trnY, and rearranged from rrnS-(AT-rich region)-I-Q-M-nd2-W-C-Y to rrnS-Q-W-C-nd2-I-M-(AT-rich region)-Y, involving a local inversion event of a large gene cluster and transposition events of some tRNAs. Transposition of trnA and trnR (rearranged from A-R to R-A) was observed at the nd3-nd5 gene junction while shuffling of trnP and trnT (rearranged from T-P to P-T) occurred at the nd4l-nd6 gene junction. While illegitimate inter-mtDNA recombination might explain the opposite orientations of transcription between rrnS and trnY, transposition events of tRNA in some gene blocks can be accounted for by the tandem duplication/random loss (TDRL) model. Our phylogenetic analysis suggests that N. zhejiangensis is closely related to congeneric species N. biremis and N. japonicus, which together form a sister lineage with the European pine sawfly, Neodiprion sertifer.
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A New Genus of Sminthurididae (Collembola, Symphypleona) from Brazil, with Notes on the Systematics of the Family. DIVERSITY 2022. [DOI: 10.3390/d14110960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The Sminthurididae family includes Symphypleona species highly adapted to courtship, with males exhibiting remarkable modifications on their antennae. Here we describe a new Neotropical genus and species of Sminthurididae from a Cerrado-Caatinga ecotonal zone in Brazil. Males of Parasminthurides spinosus gen. nov. sp. nov. have highly dimorphic antennal claspers similar to those of Sminthurides, but its females have unique strong spiniform chaetae on antennal segments II and III as well, which are possibly accessories for the courtship. The new genus can also be diagnosed by its elongated maxillae, males having large dorsal vesicles between abdomen II and III, ungues I–III with similar morphology and sizes, and interno-apical dental chaetae modified into large spiniform chaetae. We also present the main diagnostic features of all Sminthurididae genera, providing a comparative table and an updated identification key for them. Finally, we discuss the previous and current knowledge on the family’s systematics, suggesting some perspectives for future studies in this field.
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Mitogenome selection in the evolution of key ecological strategies in the ancient hexapod class Collembola. Sci Rep 2022; 12:14810. [PMID: 36045215 PMCID: PMC9433435 DOI: 10.1038/s41598-022-18407-1] [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] [Received: 12/12/2021] [Accepted: 08/10/2022] [Indexed: 11/09/2022] Open
Abstract
A longstanding question in evolutionary biology is how natural selection and environmental pressures shape the mitochondrial genomic architectures of organisms. Mitochondria play a pivotal role in cellular respiration and aerobic metabolism, making their genomes functionally highly constrained. Evaluating selective pressures on mitochondrial genes can provide functional and ecological insights into the evolution of organisms. Collembola (springtails) are an ancient hexapod group that includes the oldest terrestrial arthropods in the fossil record, and that are closely associated with soil environments. Of interest is the diversity of habitat stratification preferences (life forms) exhibited by different species within the group. To understand whether signals of positive selection are linked to the evolution of life forms, we analysed 32 published Collembola mitogenomes in a phylomitogenomic framework. We found no evidence that signatures of selection are correlated with the evolution of novel life forms, but rather that mutations have accumulated as a function of time. Our results highlight the importance of nuclear-mitochondrial interactions in the evolution of collembolan life forms and that mitochondrial genomic data should be interpreted with caution, as complex selection signals may complicate evolutionary inferences.
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A Highly Troglomorphic New Genus of Sminthuridae (Collembola, Symphypleona) from the Brazilian Semiarid Region. INSECTS 2022; 13:insects13070650. [PMID: 35886826 PMCID: PMC9323648 DOI: 10.3390/insects13070650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/05/2022] [Accepted: 07/07/2022] [Indexed: 11/16/2022]
Abstract
Here, we describe the highly troglomorphic Troglobentosminthurus gen. nov. from Água Clara cave system, Caatinga domain, Bahia, Brazil. Troglobentosminthurus luridus gen. nov. sp. nov. has remarkably long antennae, legs and furca, and lacks body pigments, except for small orange eye patches which also show a reduction in the number of eyes (5 + 5) and lens sizes. The overall morphology of the genus, with long and highly sub-segmented antennae, resembles other Sminthurinae of the Temeritas-group, especially Temeritas Richards and Galeriella Ćurčić and Lučić. However, it is unique, especially in the combination of the number of antennae IV subsegments and eyes, frontal head chaetotaxy and empodial complex morphology. Two type specimens have remnants of a mite and another specimen from the new species in their gut contents, supporting the species may be occasional predators and even cannibals. We also provide identification keys and comparative tables to the subfamilies of Sminthuridae and the Temeritas-group of genera.
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Pan Z, Jin J, Xu C, Yu D. Chromosomal-level genome assembly of the springtail Tomocerus qinae (Collembola: Tomoceridae). Genome Biol Evol 2022; 14:6550138. [PMID: 35298623 PMCID: PMC8995043 DOI: 10.1093/gbe/evac039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/10/2022] [Indexed: 11/14/2022] Open
Abstract
The family Tomoceridae is among the earliest derived collembolan lineages, thus is of key importance in understanding the evolution of Collembola. Here, we assembled a chromosome-level genome of one tomocerid species Tomocerus qinae by combining Nanopore long reads and Hi-C data. The final genome size was 334.44 Mb with the scaffold/contig N50 length of 71.85/13.94 Mb. BUSCO assessment indicated that 96.80% of complete arthropod universal single-copy orthologs (n = 1,013) were present in the assembly. The repeat elements accounted for 26.11% (87.26 Mb) and 494 noncoding RNAs were identified in the genome. A total of 20,451 protein-coding genes were predicted, which captured 96.0% (973) BUSCO genes. Gene family evolution analyses identified 4,825 expanded gene families of T. qinae, among them, 47 experienced significant expansions, and these significantly expanded gene families mainly involved in proliferation and growth. This study provides an important genomic resource for future evolution and comparative genomics analyses of Collembola.
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Affiliation(s)
- Zhixiang Pan
- School of Life Sciences, Taizhou University, Taizhou, Zhejiang province 318000, China
| | - Jianfeng Jin
- Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Cong Xu
- Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Daoyuan Yu
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
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Yu D, Ding Y, Tihelka E, Cai C, Hu F, Liu M, Zhang F. OUP accepted manuscript. Syst Biol 2022; 71:1023-1031. [PMID: 35289913 PMCID: PMC9366459 DOI: 10.1093/sysbio/syac024] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 03/11/2022] [Indexed: 11/14/2022] Open
Affiliation(s)
- Daoyuan Yu
- Soil Ecology Laboratory, College of Resources and Environmental Sciences, Nanjing Agricultural University, 210095 Nanjing, China
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, 210095 Nanjing, China
- Jiangsu Key Laboratory for Solid Organic Waste Utilization, 210095 Nanjing, China
| | - Yinhuan Ding
- Department of Entomology, College of Plant Protection, Nanjing Agricultural University, 210095 Nanjing, China
| | - Erik Tihelka
- School of Earth Sciences, University of Bristol, Life Sciences Building, Tyndall Avenue, Bristol BS8 1TQ, UK
| | - Chenyang Cai
- School of Earth Sciences, University of Bristol, Life Sciences Building, Tyndall Avenue, Bristol BS8 1TQ, UK
- State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, 210008 Nanjing, China
- Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, 210008 Nanjing, China
| | - Feng Hu
- Soil Ecology Laboratory, College of Resources and Environmental Sciences, Nanjing Agricultural University, 210095 Nanjing, China
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, 210095 Nanjing, China
- Jiangsu Key Laboratory for Solid Organic Waste Utilization, 210095 Nanjing, China
| | | | - Feng Zhang
- Correspondence to be sent to: Department of Entomology, College of Plant Protection, Nanjing Agricultural University, 210095 Nanjing, China; E-mail:
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Timmermans MJTN, Arbea JI, Campbell G, King MC, Prins A, Kett S. Mitochondrial genome divergence supports an ancient origin of circatidal behaviour in the Anurida maritima (Collembola: Neanuridae) species group. ORG DIVERS EVOL 2021. [DOI: 10.1007/s13127-021-00503-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Godeiro NN, Bellini BC, Ding N, Xu C, Ding Y, Zhang F. A mitogenomic phylogeny of the Entomobryoidea (Collembola): A comparative perspective. ZOOL SCR 2021. [DOI: 10.1111/zsc.12487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nerivânia Nunes Godeiro
- Department of Entomology College of Plant Protection Nanjing Agricultural University Nanjing China
| | - Bruno Cavalcante Bellini
- Department of Botany and Zoology Biosciences Center Federal University of Rio Grande do Norte Natal Rio Grande do Norte Brazil
| | - Nifeng Ding
- Department of Entomology College of Plant Protection Nanjing Agricultural University Nanjing China
| | - Cong Xu
- Department of Entomology College of Plant Protection Nanjing Agricultural University Nanjing China
| | - Yinhuan Ding
- Department of Entomology College of Plant Protection Nanjing Agricultural University Nanjing China
| | - Feng Zhang
- Department of Entomology College of Plant Protection Nanjing Agricultural University Nanjing China
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Cucini C, Fanciulli PP, Frati F, Convey P, Nardi F, Carapelli A. Re-Evaluating the Internal Phylogenetic Relationships of Collembola by Means of Mitogenome Data. Genes (Basel) 2020; 12:genes12010044. [PMID: 33396901 PMCID: PMC7824276 DOI: 10.3390/genes12010044] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/16/2020] [Accepted: 12/27/2020] [Indexed: 01/01/2023] Open
Abstract
Collembola are an ancient and early diverging lineage of basal hexapods that occur in virtually all terrestrial habitats on Earth. Phylogenetic relationships between the different orders of Collembola are fiercely debated. Despite a range of studies and the application of both morphological and genetic approaches (singly or in combination) to assess the evolutionary relationships of major lineages in the group, no consensus has been reached. Several mitogenome sequences have been published for key taxa of the class (and their number is increasing rapidly). Here, we describe two new Antarctic Collembola mitogenomes and compare all complete or semi-complete springtail mitogenome sequences available on GenBank in terms of both gene order and DNA sequence analyses in a genome evolution and molecular phylogenetic framework. With minor exceptions, we confirm the monophyly of Poduromorpha and Symphypleona sensu stricto (the latter placed at the most basal position in the springtail phylogenetic tree), whereas monophyly of Neelipleona and Entomobryomorpha is only supported when a handful of critical taxa in these two lineages are excluded. Finally, we review gene order models observed in the class, as well as the overall mitochondrial nucleotide composition.
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Affiliation(s)
- Claudio Cucini
- Department of Life Sciences, University of Siena, Via A. Moro 2, 53100 Siena, Italy; (C.C.); (P.P.F.); (F.F.); (F.N.)
| | - Pietro P. Fanciulli
- Department of Life Sciences, University of Siena, Via A. Moro 2, 53100 Siena, Italy; (C.C.); (P.P.F.); (F.F.); (F.N.)
| | - Francesco Frati
- Department of Life Sciences, University of Siena, Via A. Moro 2, 53100 Siena, Italy; (C.C.); (P.P.F.); (F.F.); (F.N.)
| | - Peter Convey
- British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge CB3 0ET, UK;
| | - Francesco Nardi
- Department of Life Sciences, University of Siena, Via A. Moro 2, 53100 Siena, Italy; (C.C.); (P.P.F.); (F.F.); (F.N.)
| | - Antonio Carapelli
- Department of Life Sciences, University of Siena, Via A. Moro 2, 53100 Siena, Italy; (C.C.); (P.P.F.); (F.F.); (F.N.)
- Correspondence:
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Nardi F, Cucini C, Leo C, Frati F, Fanciulli PP, Carapelli A. The complete mitochondrial genome of the springtail Allacma fusca, the internal phylogenetic relationships and gene order of Symphypleona. MITOCHONDRIAL DNA PART B-RESOURCES 2020; 5:3103-3105. [PMID: 33458074 PMCID: PMC7782307 DOI: 10.1080/23802359.2020.1800425] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Symphypleona (sensu stricto) are a group of Collembola (=springtails) that, despite displaying some variation in gene order, have been poorly investigated under the phylomitogenomic perspective. How families and subfamilies of this taxon are evolutionary related is still partially unknown. For this reason we sequenced, and herein described, the complete mitochondrial genome sequence of Allacma fusca (Sminthuridae). This sequence, alongside others from the literature, is here used to study the phylogenetic relationships among Symphypleona.
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Affiliation(s)
- Francesco Nardi
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Claudio Cucini
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Chiara Leo
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Francesco Frati
- Department of Life Sciences, University of Siena, Siena, Italy
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