... technologies . WIREs Dev. Biol.   4 , 161 - 180 . 10.1002/wdev.166 Sarrazin , A. F. , Peel , A. D. and Averof , M. ( 2012 ). A segmentation clock with two-segment periodicity in insects . Science   336 , 338 - 341 . 10.1126/science.1218256 Schinko , J. B. , Weber , M...

...Eileen Krüger; Wilson Mena; Eleanor C. Lahr; Erik C. Johnson; John Ewer Insect growth is punctuated by molts, during which the animal produces a new exoskeleton. The molt culminates in ecdysis, an ordered sequence of behaviors that causes the old cuticle to be shed. This sequence is activated...

... in established model organisms, CRISPR technology provides a platform for genetic intervention in a wide range of species, limited only by our ability to deliver it to cells and to select mutations efficiently. Here, we test the CRISPR technology in an emerging insect model and pest, the beetle Tribolium...

... a conserved ancestral state (Averof, M. and Akam, M. (1995) Nature 376, 420-423). In comparison, in insects, the Antennapedia -class genes of the homeotic clusters are more regionally deployed into distinct domains where they serve to control the morphology of the different trunk segments. Thus an originally...

...Detlev Arendt; Katharina Nübler-Jung ABSTRACT It is widely held that the insect and vertebrate CNS evolved independently. This view is now challenged by the concept of dorsoventral axis inversion, which holds that ventral in insects corresponds to dorsal in vertebrates. Here, insect and vertebrate...

.... 1, D-30625 Hannover, Germany * Author for correspondence (e-mail: dbopp@zool.unizh.ch ) 12 02 1998 © 1998 by Company of Biologists 1998 Sex determination Evolution Insect Sex-lethal Drosophila Musca domestica In Drosophila melanogaster , the gene Sex...

...Ingrid A. Sulston; Kathryn V. Anderson ABSTRACT The identification and analysis of genes controlling segmentation in Drosophila melanogaster has opened the way for understanding similarities and differences in mechanisms of segmentation among the insects. Homologues of Drosophila segmentation genes...

... sheath cell monoclonal antibody immunoglobulin superfamily GPI-linked axon outgrowth insect The generation of cellular diversity during neuronal development is an important prerequisite for establishing the complex cellular connections necessary for nervous system function. The stereotypy...

...Klaus Sander ABSTRACT This report surveys data and interpretations presented by speakers in the Arthropod Session of the 1994 BSDB Spring Symposium. After a short review of phylogenetical aspects in premolecular insect embryology, the following topics are discussed: the ancestral germ type...

... of Sussex, Falmer, Brighton, Sussex BN1 9Q6, England 13 05 1993 © 1993 by Company of Biologists 1993 bromodeoxyuridine insect birthdating locust The transition from larval form to adult in the locust Schistocerca gregaria is marked by a striking change in behaviour...

... be characterized by their expression of cell-specific molecular labels. These studies indicate that many features of the complex mature insect brain derive from a surprisingly simple and stereotyped set of neuronal precursor cells. Thus, many of the concepts and methods that have been used to study neurogenesis...

... that go on in normal development to shape the nervous system. 14 04 1992 © 1992 by Company of Biologists 1992 insect CNS development synaptic competition cockroach sensory neuron Insect sensory systems provide favourable material for tackling problems in developmental...

...Thomas Meier; Fabienne Chabaud; Heinrich Reichert ABSTRACT To determine the generality of developmental mechanisms involved in the construction of the insect nervous system, the embryonic development of the peripheral nervous system in the grasshopper Schistocerca gregaria was characterized...

... identical for both insects. Interestingly, Al and TAG, which are of intermediate complexity in terms of having an extended period of neurogenesis, do not show a rate of proliferation significantly greater than their counterparts in the simpler abdominal ganglia and therefore their specialisations are due...

... patterning should await knowledge of the spatial patterns of synthesis of all relevant gene products, because understanding of the dynamics of segmentation in insects is only just beginning to emerge even though such knowledge for Drosophila genes is well advanced. What can be said, nevertheless, about...

... by Company of Biologists 1987 mitosis 20-hydroxyecdysone stimulation epidermis insect mitosis Manduca sexta polyploid cells During a moult the insect epidermis responds to the moulting hormone, 20-hydroxyecdysone (20HE), by a series of complex macromolecular changes resulting...

...K. NüBler-Jung The insect integument displays planar tissue polarity in the uniform posterior orientation of denticles and bristles. How do cell polarities become uniformly oriented in the plane of the epidermal sheet? We have already shown that it is possible to disturb uniform denticle...

... is the consequence of mechanisms dedicated to axon guidance, for example, that specific paths are laid down whose exclusive function is to guide axons. I propose to argue from two case studies in insects that regularity does not imply such exclusiveness. References Bentley , D. & Caudy , M...

... of other insects. Two out of the three classes of abnormality can be explained in terms of intercalary regeneration restoring pattern continuity, but it is possible that discontinuities persist in the remaining class. 23 04 1986 Copyright © 1986 by Company of Biologists 1986...

...Herwig O. Gutzeit; Erwin Huebner ABSTRACT The localization of F-actin (microfilaments) in the nurse cells of ovarian follicles has been studied in 12 different insect species by fluorescence microscopy after specifically staining F-actin with rhodamine-conjugated phalloidin. In the analysed species...