Bradler, Sven

[["dc.bibliographiccitation.artnumber","62"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","BMC Ecology and Evolution"],["dc.bibliographiccitation.volume","22"],["dc.contributor.author","Bank, Sarah"],["dc.contributor.author","Bradler, Sven"],["dc.date.accessioned","2022-06-01T09:39:41Z"],["dc.date.accessioned","2022-08-12T14:06:34Z"],["dc.date.available","2022-06-01T09:39:41Z"],["dc.date.available","2022-08-12T14:06:34Z"],["dc.date.issued","2022-05-12"],["dc.date.updated","2022-07-29T12:00:30Z"],["dc.description.abstract","Background\r\n The re-evolution of complex characters is generally considered impossible, yet, studies of recent years have provided several examples of phenotypic reversals shown to violate Dollo’s law. Along these lines, the regain of wings in stick and leaf insects (Phasmatodea) was hypothesised to have occurred several times independently after an ancestral loss, a scenario controversially discussed among evolutionary biologists due to overestimation of the potential for trait reacquisition as well as to the lack of taxonomic data.\r\n \r\n \r\n Results\r\n We revisited the recovery of wings by reconstructing a phylogeny based on a comprehensive taxon sample of over 500 representative phasmatodean species to infer the evolutionary history of wings. We additionally explored the presence of ocelli, the photoreceptive organs used for flight stabilisation in winged insects, which might provide further information for interpreting flight evolution. Our findings support an ancestral loss of wings and that the ancestors of most major lineages were wingless. While the evolution of ocelli was estimated to be dependent on the presence of (fully-developed) wings, ocelli are nevertheless absent in the majority of all examined winged species and only appear in the members of few subordinate clades, albeit winged and volant taxa are found in every euphasmatodean lineage.\r\n \r\n \r\n Conclusion\r\n In this study, we explored the evolutionary history of wings in Phasmatodea and demonstrate that the disjunct distribution of ocelli substantiates the hypothesis on their regain and thus on trait reacquisition in general. Evidence from the fossil record as well as future studies focussing on the underlying genetic mechanisms are needed to validate our findings and to further assess the evolutionary process of phenotypic reversals."],["dc.description.sponsorship"," Deutsche Forschungsgemeinschaft"],["dc.description.sponsorship"," Georg-August-Universität Göttingen"],["dc.description.sponsorship","Open-Access-Publikationsfonds 2022"],["dc.identifier.citation","BMC Ecology and Evolution. 2022 May 12;22(1):62"],["dc.identifier.doi","10.1186/s12862-022-02018-5"],["dc.identifier.pii","2018"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/108534"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/112726"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-572"],["dc.relation.eissn","2730-7182"],["dc.rights","CC BY 4.0"],["dc.rights.holder","The Author(s)"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","A second view on the evolution of flight in stick and leaf insects (Phasmatodea)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","Frontiers in Ecology and Evolution"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Simon, Sabrina"],["dc.contributor.author","Letsch, Harald"],["dc.contributor.author","Bank, Sarah"],["dc.contributor.author","Buckley, Thomas R."],["dc.contributor.author","Donath, Alexander"],["dc.contributor.author","Liu, Shanlin"],["dc.contributor.author","Machida, Ryuichiro"],["dc.contributor.author","Meusemann, Karen"],["dc.contributor.author","Misof, Bernhard"],["dc.contributor.author","Podsiadlowski, Lars"],["dc.contributor.author","Zhou, Xin"],["dc.contributor.author","Wipfler, Benjamin"],["dc.contributor.author","Bradler, Sven"],["dc.date.accessioned","2020-12-10T18:44:22Z"],["dc.date.available","2020-12-10T18:44:22Z"],["dc.date.issued","2019"],["dc.description.abstract","Phasmatodea comprises over 3,000 extant species and stands out as one of the last remaining insect orders for which a robust, higher-level phylogenetic hypothesis is lacking. New research suggests that the extant diversity is the result of a surprisingly recent and rapid radiation that has been difficult to resolve with standard Sanger sequence data. In order to resolve the early branching events of stick and leaf insects, we analyzed transcriptomes from 61 species, including 38 Phasmatodea species comprising all major clades and 23 outgroup taxa, including all other Polyneoptera orders. Using a custom-made ortholog set based on reference genomes from four species, we identified on average 2,274 orthologous genes in the sequenced transcriptomes. We generated various sub-alignments and performed maximum-likelihood analyses on several representative datasets to evaluate the effect of missing data and matrix composition on our phylogenetic estimates. Based on our new data, we are able to reliably resolve the deeper nodes between the principal lineages of extant Phasmatodea. Among Euphasmatodea, we provide strong evidence for a basal dichotomy of Aschiphasmatodea and all remaining euphasmatodeans, the Neophasmatodea. Within the latter clade, we recovered a previously unrecognized major New World and Old World lineage, for which we introduce the new names Oriophasmata tax. nov. (“Eastern phasmids”) and Occidophasmata tax. nov. (“Western phasmids”). Occidophasmata comprise Diapheromerinae, Pseudophasmatinae, and Agathemera, whereas all remaining lineages form the Oriophasmata, including Heteropterygidae, Phylliinae, Bacillus, Lonchodidae (Necrosciinae + Lonchodinae), Clitumninae, Cladomorphinae, and Lanceocercata. We furthermore performed a divergence time analysis and reconstructed the historical biogeography for stick and leaf insects. Phasmatodea either originated in Southeast Asia or in the New World. Our results suggest that the extant distribution of Phasmatodea is largely the result of dispersal events in a recently and rapidly diversified insect lineage rather than the result of vicariant processes."],["dc.identifier.doi","10.3389/fevo.2019.00345"],["dc.identifier.eissn","2296-701X"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16556"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/78429"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.notes.intern","Merged from goescholar"],["dc.publisher","Frontiers Media S.A."],["dc.relation.eissn","2296-701X"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Old World and New World Phasmatodea: Phylogenomics Resolve the Evolutionary History of Stick and Leaf Insects"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","487"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Systematic Entomology"],["dc.bibliographiccitation.lastpage","507"],["dc.bibliographiccitation.volume","46"],["dc.contributor.author","Bank, Sarah"],["dc.contributor.author","Buckley, Thomas R."],["dc.contributor.author","Büscher, Thies H."],["dc.contributor.author","Bresseel, Joachim"],["dc.contributor.author","Constant, Jérôme"],["dc.contributor.author","de   Haan, Mayk"],["dc.contributor.author","Dittmar, Daniel"],["dc.contributor.author","Dräger, Holger"],["dc.contributor.author","Kahar, Rafhiah S."],["dc.contributor.author","Kang, Albert"],["dc.contributor.author","Kneubühler, Bruno"],["dc.contributor.author","Langton‐Myers, Shelley S."],["dc.contributor.author","Bradler, Sven"],["dc.date.accessioned","2021-04-14T08:28:15Z"],["dc.date.available","2021-04-14T08:28:15Z"],["dc.date.issued","2021"],["dc.description.abstract","Abstract Stick and leaf insects (Phasmatodea) are large terrestrial herbivorous arthropods known for masquerading as plant parts such as bark, twigs and leaves. Their evolutionary history is largely shaped by convergent evolution associated with adaptive radiations on geographically isolated landmasses that have repeatedly generated ground‐dwelling ecomorphs. The members of one lineage, however, the Oriental Heteropterygidae, are morphologically rather uniform, and have a predominantly ground‐dwelling lifestyle. The phylogeny of Heteropterygidae that comprises approximately 130 described species is controversial and remains uncertain. In particular, the systematic position of the giant Jungle Nymph Heteropteryx dilatata, whose males are capable of flight and exhibit the most plesiomorphic wing morphology among extant phasmatodeans, is of major interest to the scientific community. Here, we analysed a set of seven nuclear and mitochondrial genes to infer the phylogeny of Heteropterygidae covering the group's overall diversity. The divergence time estimation and reconstruction of the historical biogeography resulted in an ancestral distribution across Sundaland with long distance dispersal events to Wallacea, the Philippines and the South Pacific. We were able to resolve the relationships among the three principal subgroups of Heteropterygidae and revealed the Dataminae, which contain entirely wingless small forms, as the sister group of Heteropteryginae + Obriminae. Within Heteropteryginae, Haaniella is recovered as paraphyletic in regard to Heteropteryx. Consequently, Heteropteryx must be considered a subordinate taxon deeply embedded within a flightless clade of stick insects. Within Obriminae, the Bornean Hoploclonia is strongly supported as the earliest diverging lineage. Based on this finding, we recognize only two tribes of equal rank among Obriminae, the Hoplocloniini trib. nov. and Obrimini sensu nov. Within the latter, we demonstrate that previous tribal assignments do not reflect phylogenetic relationships and that a basal splitting event occurred between the wing‐bearing clade Miroceramia + Pterobrimus and the remaining wingless Obrimini. The Philippine genus Tisamenus is paraphyletic with regard to Ilocano hebardi, thus, we transfer the latter species to Tisamenus as Tisamenus hebardi comb. nov. and synonymize Ilocano with Tisamenus. We discuss character transformations in the light of the new phylogenetic results and conclude that the current taxonomic diversity appears to be mainly driven by allopatry and not to be the result of niche differentiation. This radiation is thus best described as a nonadaptive radiation."],["dc.description.abstract","Our molecular phylogeny of the Heteropterygidae covers this group's biodiversity across its taxonomic range and substantially supports Dataminae as sister group to Heteropteryginae + Obriminae. In Heteropteryginae and Obriminae, a secondary ovipositor evolved three times independently, exhibiting distinctive morphological differences that we used for a new tribal subdivision of Obriminae. Heteropterygidae dispersed from Sundaland across the Oriental and Pacific region, retaining the ground‐dwelling lifestyle, thus representing a nonadaptive radiation whose diversification was mainly shaped by allopatry without niche differentiation. image"],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659"],["dc.identifier.doi","10.1111/syen.12472"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/82550"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.publisher","Blackwell Publishing Ltd"],["dc.relation.eissn","1365-3113"],["dc.relation.issn","0307-6970"],["dc.rights","This is an open access article under the terms of the Creative Commons Attribution?NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes."],["dc.title","Reconstructing the nonadaptive radiation of an ancient lineage of ground‐dwelling stick insects (Phasmatodea: Heteropterygidae)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","932"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Communications Biology"],["dc.bibliographiccitation.volume","4"],["dc.contributor.author","Bank, Sarah"],["dc.contributor.author","Cumming, Royce T."],["dc.contributor.author","Li, Yunchang"],["dc.contributor.author","Henze, Katharina"],["dc.contributor.author","Le Tirant, Stéphane"],["dc.contributor.author","Bradler, Sven"],["dc.date.accessioned","2021-09-01T06:42:19Z"],["dc.date.available","2021-09-01T06:42:19Z"],["dc.date.issued","2021"],["dc.description.abstract","Abstract The insect order Phasmatodea is known for large slender insects masquerading as twigs or bark. In contrast to these so-called stick insects, the subordinated clade of leaf insects (Phylliidae) are dorso-ventrally flattened and therefore resemble leaves in a unique way. Here we show that the origin of extant leaf insects lies in the Australasian/Pacific region with subsequent dispersal westwards to mainland Asia and colonisation of most Southeast Asian landmasses. We further hypothesise that the clade originated in the Early Eocene after the emergence of angiosperm-dominated rainforests. The genus Phyllium to which most of the ~100 described species pertain is recovered as paraphyletic and its three non-nominate subgenera are recovered as distinct, monophyletic groups and are consequently elevated to genus rank. This first phylogeny covering all major phylliid groups provides the basis for future studies on their taxonomy and a framework to unveil more of their cryptic and underestimated diversity."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2021"],["dc.identifier.doi","10.1038/s42003-021-02436-z"],["dc.identifier.pii","2436"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/89030"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-455"],["dc.relation.eissn","2399-3642"],["dc.rights","CC BY 4.0"],["dc.title","A tree of leaves: Phylogeny and historical biogeography of the leaf insects (Phasmatodea: Phylliidae)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]