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Blattodea

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Jerome Murienne – 1st expert on this subject based on the ideXlab platform

  • molecular data confirm family status for the tryonicus lauraesilpha group insecta Blattodea tryonicidae
    Organisms Diversity & Evolution, 2009
    Co-Authors: Jerome Murienne

    Abstract:

    Family status was recently proposed for the Tryonicus–Lauraesilpha group (Insecta: Blattodea: Tryonicidae), which had been assigned to Blattidae before. In order to test this hypothesis, a molecular phylogenetic analysis of Blattodea was conducted using the 12S and H3 genes. The results show that Tryonicidae indeed form a lineage distinct from Blattidae. The results are compared to the previous classifications and phylogenetic hypotheses (morphology- and molecular-based). It is suggested that the Polyzosteriinae tribe Methanini should remain in Polyzosteriinae (Blattodea: Blattidae).

  • Molecular data confirm family status for the Tryonicus–Lauraesilpha group (Insecta: Blattodea: Tryonicidae)
    Organisms Diversity & Evolution, 2009
    Co-Authors: Jerome Murienne

    Abstract:

    Family status was recently proposed for the Tryonicus–Lauraesilpha group (Insecta: Blattodea: Tryonicidae), which had been assigned to Blattidae before. In order to test this hypothesis, a molecular phylogenetic analysis of Blattodea was conducted using the 12S and H3 genes. The results show that Tryonicidae indeed form a lineage distinct from Blattidae. The results are compared to the previous classifications and phylogenetic hypotheses (morphology- and molecular-based). It is suggested that the Polyzosteriinae tribe Methanini should remain in Polyzosteriinae (Blattodea: Blattidae).

Warren Booth – 2nd expert on this subject based on the ideXlab platform

  • molecular traces of alternative social organization in a termite genome
    Nature Communications, 2014
    Co-Authors: Warren Booth, Nicolas Terrapon, Cai Li, Hugh M Robertson, Lu Ji, Xuehong Meng, Zhensheng Chen, Christopher P Childers

    Abstract:

    Although eusociality evolved independently within several orders of insects, research into the molecular underpinnings of the transition towards social complexity has been confined primarily to Hymenoptera (for example, ants and bees). Here we sequence the genome and stage-specific transcriptomes of the dampwood termite Zootermopsis nevadensis (Blattodea) and compare them with similar data for eusocial Hymenoptera, to better identify commonalities and differences in achieving this significant transition. We show an expansion of genes related to male fertility, with upregulated gene expression in male reproductive individuals reflecting the profound differences in mating biology relative to the Hymenoptera. For several chemoreceptor families, we show divergent numbers of genes, which may correspond to the more claustral lifestyle of these termites. We also show similarities in the number and expression of genes related to caste determination mechanisms. Finally, patterns of DNA methylation and alternative splicing support a hypothesized epigenetic regulation of caste differentiation.

  • population genetic structure of the german cockroach Blattodea blattellidae in apartment buildings
    Journal of Medical Entomology, 2010
    Co-Authors: Jonathan Crissman, Warren Booth, Richard G Santangelo, D V Mukha, Edward L Vargo, Coby Schal

    Abstract:

    ABSTRACT The German cockroach, Blattella germanica (L.) (Blattodea: Blattellidae), is a major residential pest with the potential to vector various pathogens and produce and disseminate household allergens. Understanding population genetic structure and differentiation of this important pest is critical to efforts to eradicate infestations, yet little is known in this regard. Using highly polymorphic microsatellite markers, we investigated patterns of genetic diversity and differentiation within and among 18 apartments from six apartment complexes located in Raleigh, NC. No departure from panmixia was found between rooms within apartments, indicating that active dispersal resulting in gene flow may occur among rooms within apartment units. Alternatively, aggregations within apartments may exist in relative isolation under a metapopulation framework, derived from a recent, common source. Thus, in the event of population control practices leading to incomplete cockroach eradication within an apartment, reco…

Dominic A Evangelista – 3rd expert on this subject based on the ideXlab platform

  • an integrative phylogenomic approach illuminates the evolutionary history of cockroaches and termites Blattodea
    Proceedings of The Royal Society B: Biological Sciences, 2019
    Co-Authors: Dominic A Evangelista, Ryuichiro Machida, Benjamin Wipfler, Olivier Bethoux, Alexander Donath, Mari Fujita, Manpreet K Kohli, Frederic Legendre, Bernhard Misof

    Abstract:

    Phylogenetic relationships among subgroups of cockroaches and termites are still matters of debate. Their divergence times and major phenotypic transitions during evolution are also not yet settled. We addressed these points by combining the first nuclear phylogenomic study of termites and cockroaches with a thorough approach to divergence time analysis, identification of endosymbionts, and reconstruction of ancestral morphological traits and behaviour. Analyses of the phylogenetic relationships within Blattodea robustly confirm previously uncertain hypotheses such as the sister-group relationship between Blaberoidea and remaining Blattodea, and Lamproblatta being the closest relative to the social and wood-feeding Cryptocercus and termites. Consequently, we propose new names for various clades in Blattodea: Cryptocercus + termites = Tutricablattae; Lamproblattidae + Tutricablattae = Kittrickea; and Blattoidea + Corydioidea = SolumBlattodea. Our inferred divergence times contradict previous studies by showing that most subgroups of Blattodea evolved in the Cretaceous, reducing the gap between molecular estimates of divergence times and the fossil record. On a phenotypic level, the Blattodean ground-plan is for egg packages to be laid directly in a hole while other forms of oviposition, including ovovivipary and vivipary, arose later. Finally, other changes in egg care strategy may have allowed for the adaptation of nest building and other novelties.

  • prayers for fossil mantis unfulfilled prochaeradodis enigmaticus piton 1940 is a cockroach Blattodea
    Geodiversitas, 2018
    Co-Authors: Dominic A Evangelista, Olivier Bethoux

    Abstract:

    The fossil species Prochaeradodis enigmaticusPiton, 1940, from Menat (France, Paleocene) has been regarded as a crown-Mantodea (praying mantis) and was subsequently used as one of the very few temporal calibration points relevant for the order. Ambiguities in previous descriptions prompted us to re-examine the type material. Based on our new observations and a broad comparative analysis across Dictyoptera, we recognized three independent morphological character states supporting an unequivocal placement of the fossil within Blattodea (cockroaches and termites). These states are: 1) in forewing, the AA area has intercalary veins; 2) in forewing, ScP is short and oblique; and 3) in hind wing, CuA has many posterior branches not reaching the posterior wing margin but the cubital furrow. This new placement discounts the use of this fossil as a Mantodea tree calibration point.

  • new and enigmatic cockroaches dictyoptera Blattodea of guyana
    Journal of Natural History, 2016
    Co-Authors: Dominic A Evangelista, Erdine Sylvain, Ciara Mae Mendoza, Kimberly Guzman

    Abstract:

    ABSTRACTWe report Blattodean taxa collected from three regions in Guyana. Our analyses associated with these specimens provide new geographic records, species descriptions, ecological information and genetic information. We report on the genera Lamproblatta, Eublaberus, Epilampra, Dasyblatta, Ischnoptera, Xestoblatta, Dendroblatta and Euphyllodromia. These include two new species, nine new records for Guyana and four new records for the Guiana Shield entirely. We also provide photographs, measurements, and some new biological information for our specimens.