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Zhang P, Cai Y, Ma L, Chai J, Zhou Z. DNA barcoding of the genus Gampsocleis (Orthoptera, Tettigoniidae) from China. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2024; 115:e22070. [PMID: 38288484 DOI: 10.1002/arch.22070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 11/16/2023] [Accepted: 11/18/2023] [Indexed: 02/01/2024]
Abstract
DNA barcoding is a useful addition to the traditional morphology-based taxonomy. A ca. 650 bp fragment of the 5' end of mitochondrial cytochrome c oxidase subunit I (hereafter COI-5P) DNA barcoding was sued as a practical tool for Gampsocleis species identification. DNA barcodes from 889 specimens belonging to 8 putative Gampsocleis species was analyzed, including 687 newly generated DNA barcodes. These barcode sequences were clustered/grouped into Operational Taxonomic Units (OTUs) using the criteria of five algorithms, namely Barcode Index Number (BIN) System, Assemble Species by Automatic Partitioning (ASAP), a Java program uses an explicit, determinate algorithm to define Molecular Operational Taxonomic Unit (jMOTU), Generalized Mixed Yule Coalescent (GMYC), and Bayesian implementation of the Poisson Tree Processes model (bPTP). The Taxon ID Tree grouped sequences of morphospecies and almost all MOTUs in distinct nonoverlapping clusters. Both long- and short-winged Gampsocleis species are reciprocally monophyletic in the Taxon ID Tree. In BOLD, 889 barcode sequences are assigned to 17 BINs. The algorithms ASAP, jMOTU, bPTP and GMYC clustered the barcode sequences into 6, 13, 10, and 23 MOTUs, respectively. BIN, ASAP, and bPTP algorithm placed three long-winged species, G. sedakovii, G. sinensis and G. ussuriensis within the same MOTU. All species delimitation algorithms split two short-winged species,G. fletcheri and G. gratiosa into at least two MOTUs each, except for ASAP algorithm. More detailed molecular and morphological integrative studies are required to clarify the status of these MOTUs in the future.
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Affiliation(s)
- Pu Zhang
- Key Laboratory of Zoological Systematics and Application of Hebei Province, College of Life Sciences, Hebei University, Baoding, China
| | - Yuting Cai
- Key Laboratory of Zoological Systematics and Application of Hebei Province, College of Life Sciences, Hebei University, Baoding, China
| | - Lan Ma
- Key Laboratory of Zoological Systematics and Application of Hebei Province, College of Life Sciences, Hebei University, Baoding, China
| | - Jinyan Chai
- Key Laboratory of Zoological Systematics and Application of Hebei Province, College of Life Sciences, Hebei University, Baoding, China
| | - Zhijun Zhou
- Key Laboratory of Zoological Systematics and Application of Hebei Province, College of Life Sciences, Hebei University, Baoding, China
- Institute of Life Science and Green Development, Hebei University, Baoding, China
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Jourdan J, Bundschuh M, Copilaș-Ciocianu D, Fišer C, Grabowski M, Hupało K, Jemec Kokalj A, Kabus J, Römbke J, Soose LJ, Oehlmann J. Cryptic Species in Ecotoxicology. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2023; 42:1889-1914. [PMID: 37314101 DOI: 10.1002/etc.5696] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/20/2023] [Accepted: 06/12/2023] [Indexed: 06/15/2023]
Abstract
The advent of genetic methods has led to the discovery of an increasing number of species that previously could not be distinguished from each other on the basis of morphological characteristics. Even though there has been an exponential growth of publications on cryptic species, such species are rarely considered in ecotoxicology. Thus, the particular question of ecological differentiation and the sensitivity of closely related cryptic species is rarely addressed. Tackling this question, however, is of key importance for evolutionary ecology, conservation biology, and, in particular, regulatory ecotoxicology. At the same time, the use of species with (known or unknown) cryptic diversity might be a reason for the lack of reproducibility of ecotoxicological experiments and implies a false extrapolation of the findings. Our critical review includes a database and literature search through which we investigated how many of the species most frequently used in ecotoxicological assessments show evidence of cryptic diversity. We found a high proportion of reports indicating overlooked species diversity, especially in invertebrates. In terrestrial and aquatic realms, at least 67% and 54% of commonly used species, respectively, were identified as cryptic species complexes. The issue is less prominent in vertebrates, in which we found evidence for cryptic species complexes in 27% of aquatic and 6.7% of terrestrial vertebrates. We further exemplified why different evolutionary histories may significantly determine cryptic species' ecology and sensitivity to pollutants. This in turn may have a major impact on the results of ecotoxicological tests and, consequently, the outcome of environmental risk assessments. Finally, we provide a brief guideline on how to deal practically with cryptic diversity in ecotoxicological studies in general and its implementation in risk assessment procedures in particular. Environ Toxicol Chem 2023;42:1889-1914. © 2023 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
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Affiliation(s)
- Jonas Jourdan
- Department of Aquatic Ecotoxicology, Goethe University, Frankfurt am Main, Germany
| | - Mirco Bundschuh
- iES Landau, Institute for Environmental Sciences, University of Kaiserslautern-Landau, Landau, Germany
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Denis Copilaș-Ciocianu
- Laboratory of Evolutionary Ecology of Hydrobionts, Nature Research Centre, Vilnius, Lithuania
| | - Cene Fišer
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Michał Grabowski
- Invertebrate Zoology and Hydrobiology, University of Lodz, Łódź, Poland
| | - Kamil Hupało
- Department of Aquatic Ecosystem Research, Faculty of Biology, University of Duisburg-Essen, Essen, Germany
| | - Anita Jemec Kokalj
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Jana Kabus
- Department of Aquatic Ecotoxicology, Goethe University, Frankfurt am Main, Germany
| | - Jörg Römbke
- ECT Oekotoxikologie, Flörsheim am Main, Germany
| | - Laura J Soose
- Department of Aquatic Ecotoxicology, Goethe University, Frankfurt am Main, Germany
| | - Jörg Oehlmann
- Department of Aquatic Ecotoxicology, Goethe University, Frankfurt am Main, Germany
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Zhao Y, Wang H, Huang H, Zhou Z. A DNA barcode library for katydids, cave crickets, and leaf-rolling crickets (Tettigoniidae, Rhaphidophoridae and Gryllacrididae) from Zhejiang Province, China. Zookeys 2022; 1123:147-171. [PMID: 36762040 PMCID: PMC9836636 DOI: 10.3897/zookeys.1123.86704] [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] [Received: 05/19/2022] [Accepted: 09/06/2022] [Indexed: 11/12/2022] Open
Abstract
Barcode libraries are generally assembled with two main objectives in mind: specimen identification and species discovery/delimitation. In this study, the standard COI barcode region was sequenced from 681 specimens belonging to katydids (Tettigoniidae), cave crickets (Rhaphidophoridae), and leaf-rolling crickets (Gryllacrididae) from Zhejiang Province, China. Of these, four COI-5P sequences were excluded from subsequent analyses because they were likely NUMTs (nuclear mitochondrial pseudogenes). The final dataset consisted of 677 barcode sequences representing 90 putative species-level taxa. Automated cluster delineation using the Barcode of Life Data System (BOLD) revealed 118 BINs (Barcodes Index Numbers). Among these 90 species-level taxa, 68 corresponded with morphospecies, while the remaining 22 were identified based on reverse taxonomy using BIN assignment. Thirteen of these morphospecies were represented by a single barcode (so-called singletons), and each of 19 morphospecies were split into more than one BIN. The consensus delimitation scheme yielded 55 Molecular Operational Taxonomic Units (MOTUs). Only four morphospecies (I max > DNN) failed to be recovered as monophyletic clades (i.e., Elimaeaterminalis, Phyllomimusklapperichi, Sinochloraszechwanensis and Xizicushowardi), so it is speculated that these may be species complexes. Therefore, the diversity of katydids, cave crickets, and leaf-rolling crickets in Zhejiang Province is probably slightly higher than what current taxonomy would suggest.
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Affiliation(s)
- Yizheng Zhao
- Key Laboratory of Zoological Systematics and Application of Hebei Province, College of Life Sciences, Hebei University, Baoding, Hebei 071002, ChinaHebei UniversityBaodingChina
| | - Hui Wang
- Key Laboratory of Zoological Systematics and Application of Hebei Province, College of Life Sciences, Hebei University, Baoding, Hebei 071002, ChinaHebei UniversityBaodingChina
| | - Huimin Huang
- Key Laboratory of Zoological Systematics and Application of Hebei Province, College of Life Sciences, Hebei University, Baoding, Hebei 071002, ChinaHebei UniversityBaodingChina
| | - Zhijun Zhou
- Key Laboratory of Zoological Systematics and Application of Hebei Province, College of Life Sciences, Hebei University, Baoding, Hebei 071002, ChinaHebei UniversityBaodingChina
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Evolutionary importance of intraspecific variation in sex pheromones. Trends Ecol Evol 2021; 36:848-859. [PMID: 34167852 DOI: 10.1016/j.tree.2021.05.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 05/14/2021] [Accepted: 05/18/2021] [Indexed: 11/23/2022]
Abstract
Sex pheromones in many insect species are important species-recognition signals that attract conspecifics and inhibit attraction between heterospecifics; therefore, sex pheromones have predominantly been considered to evolve due to interactions between species. Recent research, however, is uncovering roles for these signals in mate choice, and that variation within and between populations can be drivers of species evolution. Variation in pheromone communication channels arises from a combination of context-dependent, condition-dependent, or genetic mechanisms in both signalers and receivers. Variation can affect mate choice and thus gene flow between individuals and populations, affecting species' evolution. The complex interactions between intraspecific and interspecific selection forces calls for more integrative studies to understand the evolution of sex pheromone communication.
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Long-term stasis in acariform mites provides evidence for morphologically stable evolution: Molecular vs. morphological differentiation in Linopodes (Acariformes; Prostigmata). Mol Phylogenet Evol 2021; 163:107237. [PMID: 34147656 DOI: 10.1016/j.ympev.2021.107237] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 06/10/2021] [Accepted: 06/15/2021] [Indexed: 11/21/2022]
Abstract
Molecular species delimitation, usually by COI DNA barcoding, shows that cryptic speciation is a common phenomenon observed in most animal phyla. Cryptic species have frequently been observed among all major taxa of mites. The mites of the eupodoid genus Linopodes are cosmopolitan in distribution and are most often found in soil-related habitats. Currently, the genus consists of 22 morphologically similar species, which, in practice, are indistinguishable on the basis of their morphological features. The diagnostic issue of the Linopodes species may be caused by the poor delineation of the species, which need taxonomic revision, or the low morphological variability among cryptic species. In this paper, we present the results of molecular species delimitation carried out using sampled Linopodes populations and the level of morphological inter/intraspecific variation within defined groups. We compared COI, 18S and 28S sequence data together with morphological characters. The molecular delimitation revealed seven well-defined species of Linopodes based on DNA sequences. A well-supported phylogenetic tree revealed the same seven species, while morphological analysis showed negligible phenotypic differentiation among the species revealed. We demonstrate that mites can undergo changes in their DNA accompanied by morphological stasis lasting at least 80 MY.
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Cerca J, Meyer C, Stateczny D, Siemon D, Wegbrod J, Purschke G, Dimitrov D, Struck TH. Deceleration of morphological evolution in a cryptic species complex and its link to paleontological stasis. Evolution 2019; 74:116-131. [DOI: 10.1111/evo.13884] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 10/11/2019] [Accepted: 10/22/2019] [Indexed: 01/01/2023]
Affiliation(s)
- José Cerca
- Frontiers of Evolutionary Zoology Research Group, Natural History MuseumUniversity of Oslo Oslo 0562 Norway
| | - Christian Meyer
- Faculty of Biology and Chemistry, Department of Zoology and Developmental BiologyUniversity of Osnabrueck 49069 Osnabrueck Germany
| | - Dave Stateczny
- Faculty of Biology and Chemistry, Department of Zoology and Developmental BiologyUniversity of Osnabrueck 49069 Osnabrueck Germany
- Zoological Research Museum Alexander Koenig 53113 Bonn Germany
| | - Dominik Siemon
- Zoological Research Museum Alexander Koenig 53113 Bonn Germany
| | - Jana Wegbrod
- Zoological Research Museum Alexander Koenig 53113 Bonn Germany
| | - Gunter Purschke
- Faculty of Biology and Chemistry, Department of Zoology and Developmental BiologyUniversity of Osnabrueck 49069 Osnabrueck Germany
| | - Dimitar Dimitrov
- Department of Natural History, University Museum of BergenUniversity of Bergen 5020 Bergen Norway
| | - Torsten H. Struck
- Frontiers of Evolutionary Zoology Research Group, Natural History MuseumUniversity of Oslo Oslo 0562 Norway
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