DNA barcoding suggested the existence of cryptic species and high biodiversity of South Korean pseudoscorpions (Arachnida, Pseudoscorpiones)

Ohira, Hajime; Sato, Kai; Tsutsumi, Tadaaki; Kaneko, Shingo; Choi, Hyeok-Jae

doi:10.1016/j.japb.2018.04.005

Cited by 10 publications

(9 citation statements)

References 41 publications

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“…nov. and L. chyzeri , indistinguishable morphologically, differed by 11.1–12.2% (p-distance and Tamura-Nei, respectively). Such distances are more congruent with interspecific divergences among valid pseudoscorpion species than with reported values of intraspecific diversity [ 29 , 118 , 119 ]. The intraspecific distances reported from other Chernetidae taxa inhabiting the same geographic region are generally much lower (~1–5.5%), with the exception of Dinocheirus panzeri (C.L.…”

Section: Discussionsupporting

confidence: 60%

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Integrative Taxonomy Approach Reveals Cryptic Diversity within the Phoretic Pseudoscorpion Genus Lamprochernes (Pseudoscorpiones: Chernetidae)

Christophoryová

Krajčovičová

Šťáhlavský

et al. 2023

Insects

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Pseudoscorpions represent an ancient, but homogeneous group of arachnids. The genus Lamprochernes comprises several morphologically similar species with wide and overlapping distributions. We implemented an integrative approach combining molecular barcoding (cox1), with cytogenetic and morphological analyses in order to assess species boundaries in European Lamprochernes populations. The results suggest ancient origins of Lamprochernes species accompanied by morphological stasis within the genus. Our integrative approach delimited three nominal Lamprochernes species and one cryptic lineage Lamprochernes abditus sp. nov. Despite its Oligocene origin, L. abditus sp. nov. can be distinguished from its closest relative only by molecular and cytogenetic differences, or alternatively, by a complex multivariate morphometric analysis involving other Lamprochernes species. The population structure and common haplotype sharing across geographically distant populations in most Lamprochernes species suggest that a phoretic manner of dispersal is efficient in this group.

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Section: Discussionsupporting

confidence: 60%

“…Barcoding has helped to uncover cryptic diversity among various arachnid groups, including pseudoscorpions [ 29 , 118 , 119 , 120 , 121 ]. The results of this study highlight the usefulness of barcoding data for cryptic-diversity detection, even in regions considered as well known.…”

Section: Discussionmentioning

confidence: 99%

Integrative Taxonomy Approach Reveals Cryptic Diversity within the Phoretic Pseudoscorpion Genus Lamprochernes (Pseudoscorpiones: Chernetidae)

Christophoryová

Krajčovičová

Šťáhlavský

et al. 2023

Insects

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“…The notion that morphological approaches typically underestimate the real number of species in morphologically uniform taxa [38] evidently also applies to pseudoscorpions. Molecular methods revealed the presence of cryptic diversity in many genera [25,[39][40][41][42], including those from well-studied regions, such as Central and Western Europe [16,21]. Additionally, the implementation of genetic/genomic data [43,44] provided stability to phylogenetic relationships and created the necessary backbone for the targeted investigation of ecologic and evolutionary patterns in pseudoscorpions [13,16,21,[45][46][47][48].…”

Section: Introductionmentioning

confidence: 99%

Dispersal Capabilities Do Not Parallel Ecology and Cryptic Speciation in European Cheliferidae Pseudoscorpions (Pseudoscorpiones: Cheliferidae)

Just,

Šťáhlavský,

Bogusch

et al. 2023

Diversity

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The ability to disperse has continually shaped both the distribution and diversification of biota, and it affects the survival of the species with respect to wide-ranging habitat loss. As a response, organisms unable to spread by their own means often developed surrogate dispersal strategies. Pseudoscorpions possess small body sizes and cannot actively disperse over large distances and geographic barriers; therefore, they have adopted other ecological strategies. They are either sedentary and remain confined to stable environments or passively disperse via phoresy and are capable of inhabiting a wide variety of habitats, including temporary ones. In this paper, we use barcoding data to investigate the genetic diversity of four widely distributed and relatively morphologically uniform Cheliferidae genera Chelifer, Dactylochelifer, Rhacochelifer and Hysterochelifer. We aim to (i) test whether the genera harbor cryptic diversity and (ii) evaluate whether the genetic structure of the species parallels their dispersal capabilities and habitat preferences (i.e., ecological strategies). In general, we uncovered independent lineages within all analyzed genera, which indicates their need for a thorough and integrative taxonomic revision. More specifically, we detected a varying degree of genetic structuring among the lineages. Known phoretic species, as well as some species and delimited lineages that are not known to use this manner of dispersal, showed a complete lack of geographical structure and shared haplotypes over large distances, while other taxa had restricted distributions. We argue that genetic structure can be used as a proxy to evaluate species’ dispersal manner and efficacy. Our results also suggest that taxa inhabiting stable environments might use phoresy for their dispersal.

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“…However, comprehensive data are largely missing. Small barcode libraries have solely been published for Canadian (Cameron & Buddle, 2019 ) and South Korean pseudoscorpions (Ohira et al., 2018 ).…”

Section: Introductionmentioning

confidence: 99%

The dark side of pseudoscorpion diversity: The German Barcode of Life campaign reveals high levels of undocumented diversity in European false scorpions

Muster

Spelda

Rulik

et al. 2021

Ecology and Evolution

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DNA barcoding is particularly useful for identification and species delimitation in taxa with conserved morphology. Pseudoscorpions are arachnids with high prevalence of morphological crypsis. Here, we present the first comprehensive DNA barcode library for Central European Pseudoscorpiones, covering 70% of the German pseudoscorpion fauna (35 out of 50 species). For 21 species, we provide the first publicly available COI barcodes, including the rare Anthrenochernes stellae Lohmander, a species protected by the FFH Habitats Directive. The pattern of intraspecific COI variation and interspecific COI variation (i.e., presence of a barcode gap) generally allows application of the DNA barcoding approach, but revision of current taxonomic designations is indicated in several taxa. Sequences of 36 morphospecies were assigned to 74 BINs (barcode index numbers). This unusually high number of intraspecific BINs can be explained by the presence of overlooked cryptic species and by the accelerated substitution rate in the mitochondrial genome of pseudoscorpions, as known from previous studies. Therefore, BINs may not be an appropriate proxy for species numbers in pseudoscorpions, while partitions built with the ASAP algorithm (Assemble Species by Automatic Partitioning) correspond well with putative species. ASAP delineated 51 taxonomic units from our data, an increase of 42% compared with the present taxonomy. The Neobisium carcionoides complex, currently considered a polymorphic species, represents an outstanding example of cryptic diversity: 154 sequences from our dataset were allocated to 23 BINs and 12 ASAP units.

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DNA barcoding suggested the existence of cryptic species and high biodiversity of South Korean pseudoscorpions (Arachnida, Pseudoscorpiones)

Cited by 10 publications

References 41 publications

Integrative Taxonomy Approach Reveals Cryptic Diversity within the Phoretic Pseudoscorpion Genus Lamprochernes (Pseudoscorpiones: Chernetidae)

Integrative Taxonomy Approach Reveals Cryptic Diversity within the Phoretic Pseudoscorpion Genus Lamprochernes (Pseudoscorpiones: Chernetidae)

Dispersal Capabilities Do Not Parallel Ecology and Cryptic Speciation in European Cheliferidae Pseudoscorpions (Pseudoscorpiones: Cheliferidae)

The dark side of pseudoscorpion diversity: The German Barcode of Life campaign reveals high levels of undocumented diversity in European false scorpions

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