Zweiter Nachtrag zur Rüsselkäfer-Fauna der Schweiz (Coleoptera, Curculionoidea)

Germann, Christoph

doi:10.3897/alpento.1.17788

Cited by 4 publications

(3 citation statements)

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“…Also this trait may be associated with the different biology and the more exposed life on the Saxifraga clumps. Pronotum (Chars [17][18][19][20][21][22]. Characters on the pronotum are quite variable, also intraspecifically.…”

Section: Analysis Of the Morphological Charactersmentioning

confidence: 99%

“…Some remarks on relationships among the Iberian and north-African species and their historical biogeography were provided in 1987 [7], based on a discussion of the most important morphological characters, but without a cladistic analysis. More recently, several remarks on the Swiss species were given [14][15][16], and a checklist for Switzerland was provided [17,18]. A first attempt to reconstruct the phylogeny and phylogeography of the genus, limited to the Saxifraga-associated alpine species, was given based on a Bayesian analysis of morphological characters and mitochondrial cytochrome oxidase I (mt-Cox1 hereafter) sequences [19], study.…”

Section: Introductionmentioning

confidence: 99%

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Phylogeny of the Genus Dichotrachelus (Coleoptera: Curculionidae: Cyclominae)

Meregalli

Germann²,

Bernasconi

et al. 2018

Diversity

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A phylogenetic analysis of the genus Dichotrachelus (Curculionidae: Cyclominae) was carried out, based on a morphological matrix and, for some species, on mitochondrial cytochrome oxidase I sequences. Bayesian Inference, Maximum Likelihood and Maximum Parsimony were implemented and the results were compared. The genus is found to be isolated in the subfamily, not related to the only other Palaearctic tribe (Hipporhinini) and possibly nearer to the south-American genera of Cyclominae of the tribe Listroderini. Among these, Macrostyphlus is also equally associated to mosses as the host plant. In Dichotrachelus, two main clades were recognized, one distributed in the western part of the Mediterranean region (Iberian Peninsula, northern Africa and southern France) and the second distributed in the Alps and Apennines. Within each clade, some differentiated monophyletic subgroups could be identified. An evaluation of the most important characters that led to the phylogenetic reconstruction indicated the male genital sclerite as the most useful structure to characterize the different clades. updated in 2015 [20]. Some additional species of the genus were also included in a more generic Barcode-approach on Swiss Alpine weevils [21].Herein, we propose a phylogenetic analysis for the entire genus Dichotrachelus, based on a morphological database matrix, as well as on mt-Cox1 sequences available for some species, in order to support the main clades (or species groups) and recognize the synapomorphies that define these groups. Available sequences of other Cyclominae were used in a first attempt at recognizing the affinities of Dichotrachelus within Cyclominae. Material and Methods Samples OriginSee Table I in the supplementary materials for a list of the species and specimens used, and for authorship and year of publication of the names. Specimens for molecular analyses were sampled by the authors. The weevils were hand-collected, immediately killed in 95% ethanol and preserved at −20 • C. Attempts to recover complete sequences of other species from dry collection specimens were seldom successful, and usually did not provide any reliable data. For the morphological analysis, samples from Meregalli's collection were used. Almost all species were included in the morphological matrix, except for D. elongatus and D. ulbrichi, species only known from the types, or, for the former, from very few specimens which could not be analysed, and the descriptions of which are insufficiently detailed to permit the scoring of the character states used for the study. Different subspecies of the same species were united with the nominal species, with the exception of D. knechti. This species was classified as a subspecies of D. stierlini in [1], but in the morphological analysis some of the character-states were distinct from those of D. stierlini, hence we have included it in the study. Sequences of the other species of Cyclominae were retrieved from GenBank. Outgroup SelectionThe selection of an outgroup proved particularly complex, since, a...

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Section: Analysis Of the Morphological Charactersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phylogeny of the Genus Dichotrachelus (Coleoptera: Curculionidae: Cyclominae)

Meregalli

Germann²,

Bernasconi

et al. 2018

Diversity

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“…within the Curculionoidea (Germann et al, 2017;Ma et al, 2022). In addition to the identification of known species, COI barcodes have also been proven to be suitable for elucidating cryptic species (Craft et al, 2010;Janzen et al, 2017;Velona et al, 2015), unveiling biogeographic patterns (Chen et al, 2018;Dinca et al, 2021), exploring population genetics (Gomez et al, 2018;Lin et al, 2020), and reconstructing phylogenetic relationships (Cognato et al, 2020;Grebennikov, 2022;Hajibabaei et al, 2007) at the species level.…”

Section: Introductionmentioning

confidence: 99%

Delimiting species, revealing cryptic diversity, and population divergence in Qinghai‐Tibet Plateau weevils through DNA barcoding

Ren,

Zhang

2024

Ecology and Evolution

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The Leptomias group represents one of the most diverse taxonomic group of weevils in the Qinghai‐Tibet Plateau and its adjacent areas. Despite the potential of hidden diversity, relatively few comprehensive studies have been conducted on species diversity in this taxonomic group. In this study, we performed DNA barcoding analysis for species of the Leptomias group using a comprehensive DNA barcode dataset that included 476 sequences representing 54 morphospecies. Within the dataset, our laboratory contributed 474 sequences, and 390 sequences were newly generated for this study. The average Kimura 2‐parameter distances among morphospecies and genera were 0.76% and 19.15%, respectively. In 94.4% of the species, the minimum interspecific distances exceeded the maximum intraspecific distances, indicating the presence of barcode gaps in most species of Leptomias group. The application of Automatic Barcode Gap Discovery, Assemble Species by Automatic Partitioning, Barcode Index Number, Bayesian Poisson tree processes, jMOTU, and Neighbor‐joining tree methods revealed 45, 45, 63, 54, and 55 distinct clusters representing single species, respectively. Additionally, a total of four morphospecies, Leptomias kangmarensis, L. midlineatus, L. siahus, and L. sp.9RL, were found to be assigned to multiple subclade each, indicating the geographical divergences and the presence of cryptic diversity. Our findings of this study demonstrate that Qinghai‐Tibet Plateau exhibits a higher species diversity of the Leptomias group, and it is imperative to investigate cryptic species within certain morphospecies using integrative taxonomic approaches in future studies. Moreover, the construction of a DNA barcode reference library presented herein establishes a robust foundational dataset to support forthcoming research on weevil taxonomy, phylogenetics, ecology, and evolution.

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Dritter Nachtrag zur Rüsselkäfer-Fauna der Schweiz (Coleoptera, Curculionoidea)

Germann¹

2019

AlpEnt

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Die Anzahl verlässlich gemeldeter Taxa (Arten und Unterarten) der Curculionoidea aus der Schweiz beträgt momentan 1081. Funde von Orchestes calceatus (Germar, 1821) werden hier erstmals bestätigt. Zusätzliche Verbreitungsdaten von zehn Arten werden gegeben. Der auf subalpine und alpine Lebensräume beschränkte Phyllobius alpinus Stierlin, 1859 ist eine valide Art stat. rev., und kein Synonym zu Ph. xanthocnemus Kiesenwetter, 1852 und wird daher aus der Synonymie herausgenommen. Die Arten werden verglichen und typische Unterscheidungsmerkmale werden aufgeführt.

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Zweiter Nachtrag zur Rüsselkäfer-Fauna der Schweiz (Coleoptera, Curculionoidea)

Abstract: Second addition to the checklist of Swiss weevils (Coleoptera, Curculionoidea)

Cited by 4 publications

References 5 publications

Phylogeny of the Genus Dichotrachelus (Coleoptera: Curculionidae: Cyclominae)

Phylogeny of the Genus Dichotrachelus (Coleoptera: Curculionidae: Cyclominae)

Delimiting species, revealing cryptic diversity, and population divergence in Qinghai‐Tibet Plateau weevils through DNA barcoding

Dritter Nachtrag zur Rüsselkäfer-Fauna der Schweiz (Coleoptera, Curculionoidea)

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