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A Characterization Of Quiescent Behavior And Profiling Of The Brain Transcriptome During Larval Development Of The Holometabolous Insect Manduca Sexta
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Book Synopsis A Characterization of Quiescent Behavior and Profiling of the Brain Transcriptome During Larval Development of the Holometabolous Insect, Manduca Sexta by : Dyan MacWilliam
Download or read book A Characterization of Quiescent Behavior and Profiling of the Brain Transcriptome During Larval Development of the Holometabolous Insect, Manduca Sexta written by Dyan MacWilliam and published by . This book was released on 2011 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: The holometabolous insect Manduca sexta has served as one of the primary model systems for the study of the neuroendocrine regulation of the insect molt. It has long been observed that during the molting period prior to cuticle shedding during its larval-larval stage transitions, M. sexta displays an extended period of quiescent behavior. This behavior has been called the "molt-sleep", and has been described anecdotally as a non-moving, non-feeding state; but it has never been characterized. We observed that molting larvae respond to gentle handling and noxious stimuli with behavior resembling that observed for inter-molt larvae, and hypothesized that the quiescent behavior of larvae is similar to the sleep-like behavior observed for many adult insects, and for molting C. elegans . We used time-lapse digital recordings to profile the rest-activity patterns of M. sexta across several larval stages, and found that larval quiescent behavior shows developmental rhythms that are reproducible both across individuals and across larval stages. Quiescent behavior is reversible both during the inter-molt and molting periods. Once aroused, molting larvae can locomote at rates comparable to inter-molt larvae. Larvae that are quiescent also have increased response latencies following exposure to a noxious stimulus, resembling (in both stages) the sleep-like states of other invertebrates. However, there are differences between inter-molt and molting quiescence, in that both feeding and quiescence seem to be homeostatically regulated during the inter-molt, but not the molting period. We propose that molting larvae engage in an adaptive quiescent state that promotes energy conservation while retaining the ability to respond to a changing environment. The correlation between the timing of molt-sleep onset with the estimated peak of the steroid molting hormones suggests that molting hormones might act directly or indirectly on the nervous system to bring about changes in gene expression that alter general arousal state. To investigate possible gene products that might be involved in the induction and maintenance of the molt-sleep, we used Illumina RNA-seq to profile the brain transcriptome at several developmental time points both during and surrounding the onset of the molt-sleep. This study is the first to profile the transcriptome of any M. sexta nervous tissue. We developed a novel method for identifying transcripts, which entailed the mapping of translated reads onto the proteome of Bombyx mori, the most closely related species for which a genome is known. 10,664 unique proteins were mapped by Illumina reads during at least one stage of development. Between 2.8%-7.8% of all genes were differentially-expressed in the brain at a given stage when compared to mid-inter-molt reference levels. Cluster and enrichment analysis reveals a dominance of processes related to trachea cuticle synthesis and degradation. In addition, many of the differentially-expressed transcripts encode neuropeptides, enzymes involved in the synthesis of small neurotransmitters, ligand-gated ion channels, G-protein-coupled receptors, ion channels and other products associated with neural activity. Possible roles for these gene products in the modulation of larval arousal-state are described.
Book Synopsis Insect Metamorphosis by : Xavier Belles
Download or read book Insect Metamorphosis written by Xavier Belles and published by Academic Press. This book was released on 2020-03-14 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Insect Metamorphosis: From Natural History to Regulation of Development and Evolution explores the origin of metamorphosis, how it evolved, and how it is it regulated. The book discusses insect metamorphosis as a key innovation in insect evolution. With most of the present biodiversity on Earth composed of metamorphosing insects—approximately 1 million species currently described, with another 10-30 million still waiting to be discovered, the book delves into misconceptions and past treatments. In addition, the topic of integrating insect metamorphosis into the theory of evolution by natural selection as noted by Darwin in his On the Origin of Species is also discussed. Users will find this to be a comprehensive and updated review on insect metamorphosis, covering biological, physiological and molecular facets, with an emphasis on evolutionary aspects. Features updated knowledge from the past decade on the mechanisms of action of juvenile hormone, the main doorkeeper of insect metamorphosis Aids researchers in entomology or developmental biology dealing with specialized aspects of metamorphosis Provides applied entomologists with recently updated data, especially on regulation, to better face the problems of pest control and management Gives general evolutionary biologists context on the process of metamorphosis in its larger scope
Book Synopsis An Introduction to Ecological Genomics by : Nico M. van Straalen
Download or read book An Introduction to Ecological Genomics written by Nico M. van Straalen and published by Oxford University Press. This book was released on 2012 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors also provide a comparative survey of the properties of genomes (genome size, gene families, synteny, and polymorphism) for prokaryotes as well as the main eukaryotic models.
Book Synopsis Insect Sex Pheromone Research and Beyond by : Yukio Ishikawa
Download or read book Insect Sex Pheromone Research and Beyond written by Yukio Ishikawa and published by Springer Nature. This book was released on 2020-03-19 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a complete overview of cutting-edge research on insect sex pheromones and pheromone communication systems. The coverage ranges from the chemistry, biosynthesis, and reception of sex pheromones to the control of odor-source searching behavior, and from molecules to the application of research findings to robotics. The book both summarizes the progress of studies conducted using Bombyx mori and several groups of moths and reviews sex pheromones of some non-lepidopteran insect groups of agricultural importance. Attention is drawn to recent findings on elaborate neural information processing in the brain in male moths and to the importance of olfactory receptors specifically tuned to sex pheromone molecules. Featuring contributions from leading experts on the topic, this book will be a unique and valuable resource for researchers and students in the fields of entomology, chemical ecology, insect physiology and biochemistry, evolution, biomimetics, and bioengineering. In addition to researchers, general insect lovers will find the book fascinating for its descriptions of the marvelous abilities of insects and the underlying mechanisms involved.
Book Synopsis Insect Endocrinology by : Lawrence I. Gilbert
Download or read book Insect Endocrinology written by Lawrence I. Gilbert and published by Academic Press. This book was released on 2011-07-26 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: The publication of the extensive seven-volume work Comprehensive Molecular Insect Science provided a complete reference encompassing important developments and achievements in modern insect science. One of the most swiftly moving areas in entomological and comparative research is endocrinology, and this volume, Insect Endocrinology, is designed for those who desire a comprehensive yet concise work on important aspects of this topic. Because this area has moved quickly since the original publication, articles in this new volume are revised, highlighting developments in the related area since its original publication. Insect Endocrinology covers the mechanism of action of insect hormones during growth and metamorphosis as well as the role of insect hormones in reproduction, diapause and the regulation of metabolism. Contents include articles on the juvenile hormones, circadian organization of the endocrine system, ecdysteroid chemistry and biochemistry, as well as new chapters on insulin-like peptides and the peptide hormone Bursicon. This volume will be of great value to senior investigators, graduate students, post-doctoral fellows and advanced undergraduate research students. It can also be used as a reference for graduate courses and seminars on the topic. Chapters will also be valuable to the applied biologist or entomologist, providing the requisite understanding necessary for probing the more applied research areas. Articles selected by the known and respected editor-in-chief of the original major reference work, Comprehensive Molecular Insect Science Newly revised contributions bring together the latest research in the quickly moving field of insect endocrinology Review of the literature of the past five years is now included, as well as full use of data arising from the application of molecular technologies wherever appropriate
Author :Vincent B. Wigglesworth Publisher :Springer Science & Business Media ISBN 13 :9400959737 Total Pages :832 pages Book Rating :4.4/5 (9 download)
Book Synopsis The Principles of Insect Physiology by : Vincent B. Wigglesworth
Download or read book The Principles of Insect Physiology written by Vincent B. Wigglesworth and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt: INSECTS PROVIDE an ideal medium in which to study all the problems of physiology. But if this medium is to be used to the best advantage, the principles and peculiarities of the insect's organization must be first appreciated. It is the purpose of this book to set forth these principles so far as they are understood at the present day. There exist already many excellent text-books of general ento mology; notably those of Imms, Weber, and Snodgrass, to mention only the more recent. But these authors have necessarily been preoccupied chiefly with describing the diversity of form among insects; discussions on function being correspondingly condensed. In the present work the emphasis is reversed. Struc ture is described only to an extent sufficient to make the physiological argument intelligible. Every anatomical peculiarity, every ecological specialization, has indeed its physiological counterpart. In that sense, anatomy, physiology and ecology are not separable. But regarded from the standpoint from which the present work is written, the endless modifications that are met with among insects are but illustrations of the general principles of their physiology, which it is the aim of this book to set forth. Completeness in such a work is not possible, or desirable; but an endeavour has been made to illustrate each physiological characteristic by a few concrete examples, and to include sufficient references to guide the student to the more important sources. The physiology of insects is to some the handmaid of Economic Entomology.
Book Synopsis Phenotypic Plasticity & Evolution by : David W. Pfennig
Download or read book Phenotypic Plasticity & Evolution written by David W. Pfennig and published by CRC Press. This book was released on 2021-05-31 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phenotypic plasticity – the ability of an individual organism to alter its features in direct response to a change in its environment – is ubiquitous. Understanding how and why this phenomenon exists is crucial because it unites all levels of biological inquiry. This book brings together researchers who approach plasticity from diverse perspectives to explore new ideas and recent findings about the causes and consequences of plasticity. Contributors also discuss such controversial topics as how plasticity shapes ecological and evolutionary processes; whether specific plastic responses can be passed to offspring; and whether plasticity has left an important imprint on the history of life. Importantly, each chapter highlights key questions for future research. Drawing on numerous studies of plasticity in natural populations of plants and animals, this book aims to foster greater appreciation for this important, but frequently misunderstood phenomenon. Key Features Written in an accessible style with numerous illustrations, including many in color Reviews the history of the study of plasticity, including Darwin’s views Most chapters conclude with recommendations for future research
Book Synopsis Arthropod Biology and Evolution by : Alessandro Minelli
Download or read book Arthropod Biology and Evolution written by Alessandro Minelli and published by Springer Science & Business Media. This book was released on 2013-04-11 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: More than two thirds of all living organisms described to date belong to the phylum Arthropoda. But their diversity, as measured in terms of species number, is also accompanied by an amazing disparity in terms of body form, developmental processes, and adaptations to every inhabitable place on Earth, from the deepest marine abysses to the earth surface and the air. The Arthropoda also include one of the most fashionable and extensively studied of all model organisms, the fruit-fly, whose name is not only linked forever to Mendelian and population genetics, but has more recently come back to centre stage as one of the most important and more extensively investigated models in developmental genetics. This approach has completely changed our appreciation of some of the most characteristic traits of arthropods as are the origin and evolution of segments, their regional and individual specialization, and the origin and evolution of the appendages. At approximately the same time as developmental genetics was eventually turning into the major agent in the birth of evolutionary developmental biology (evo-devo), molecular phylogenetics was challenging the traditional views on arthropod phylogeny, including the relationships among the four major groups: insects, crustaceans, myriapods, and chelicerates. In the meantime, palaeontology was revealing an amazing number of extinct forms that on the one side have contributed to a radical revisitation of arthropod phylogeny, but on the other have provided evidence of a previously unexpected disparity of arthropod and arthropod-like forms that often challenge a clear-cut delimitation of the phylum.
Book Synopsis Parasitoids by : H. Charles J. Godfray
Download or read book Parasitoids written by H. Charles J. Godfray and published by Princeton University Press. This book was released on 2019-12-31 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Parasitoids lay their eggs on or in the bodies of other species of insect, and the parasitoid larvae develop by feeding on the host, causing its eventual death. Known for a long time to applied biologists for their importance in regulating the population densities of economic pests, parasitoids have recently proven to be valuable tools in testing many aspects of evolutionary theory. This book synthesizes the work of both schools of parasitoid biology and asks how a consideration of evolutionary biology can help us understand the behavior, ecology, and diversity of the approximately one to two million species of parasitoid found on earth. After a general introduction to parasitoid natural history and taxonomy, the first part of the book treats the different components of the reproductive strategy of parasitoids: searching for a host, host selection, clutch size, and the sex ratio. Subsequent chapters discuss pathogens and non-Mendelian genetic elements that affect sexual reproduction; evolutionary aspects of the physiological interactions between parasitoid and host; mating strategies; life history theory and community ecology. A special effort is made to discuss the theoretical background to the subject, but without the use of mathematics.
Book Synopsis Insect Hormones by : Vladimír J. A. Novák
Download or read book Insect Hormones written by Vladimír J. A. Novák and published by . This book was released on 1966 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: An attempt to provide a systematic review of the current state of knowledge in the field.
Book Synopsis The Washington Manual Allergy, Asthma, and Immunology Subspecialty Consult by : Barbara C. Jost
Download or read book The Washington Manual Allergy, Asthma, and Immunology Subspecialty Consult written by Barbara C. Jost and published by Lippincott Williams & Wilkins. This book was released on 2003 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prepared by residents and fellows with senior faculty advisors, this quick-reference manual outlines current concepts and practice guidelines in the rapidly evolving fields of allergy, asthma, and immunology. Symptom-oriented and disease-oriented sections cover both acute and chronic problems, including drug allergy, anaphylaxis, eosinophilia, immunodeficiency, and latex allergy. Appendices include commonly used allergy and asthma drugs, laboratory values for tests in immunology, and a sample schedule for perennial aqueous immunotherapy.
Book Synopsis Handbook of Vegetable Pests by : John L. Capinera
Download or read book Handbook of Vegetable Pests written by John L. Capinera and published by Gulf Professional Publishing. This book was released on 2001 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt: Assisting anyone in need of an easy-to-use yet comprehensive survey of all pests likely to be encountered in North America, this handbook provides thorough identification guides, descriptions of pest life history, and pest management recommendations. Including hundreds of illustrations, this guide is cross-referenced to scientific literature, and includes color plates for ease of insect identification.
Book Synopsis Biology of the Insect Midgut by : M. Lehane
Download or read book Biology of the Insect Midgut written by M. Lehane and published by Springer Science & Business Media. This book was released on 1996-10-31 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: Entomological research benefits from a great diversity of technical approaches - from the molecular to the descriptive - and these are applied to an even greater diversity of insect species. As a consequence, common themes and trends in entomological research can often be overlooked as each researcher focuses on his or her own area of interest. The purpose of this volume is to bring together diverse areas of research under one common theme. The book is divisible into four conceptual areas: the structural biology of the midgut; digestion and transport; the insect midgut as a target for control strategies; and the idgut as an environment for other organisms. Each chapter is written by scientists active in the reviewed research area and a truly international team of contributors has been chosen by the editors. Biology of the Insect Midgut will be of immense use to advanced undergraduate and postgraduate students, and researchers in entomology, physiology and pest control.
Book Synopsis Insect Growth Disruptors by : Tarlochan S. Dhadialla
Download or read book Insect Growth Disruptors written by Tarlochan S. Dhadialla and published by Academic Press. This book was released on 2012-11-29 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Insect Physiology is committed to publishing volumes containing comprehensive and in-depth reviews on all aspects of insect physiology. First published in 1963, these volumes are an essential reference source for invertebrate physiologists, insect neurobiologists, entomologists, zoologists and insect biochemists. This volume is themed on small RNAs and RNAi in insects. Contains comprehensive and in-depth reviews. Essential reference source for invertebrate physiologists, insect neurobiologists, entomologists, zoologists and insect biochemists. This volume is themed on small RNAs and RNAi in insects.
Book Synopsis Evolution of the Insects by : David Grimaldi
Download or read book Evolution of the Insects written by David Grimaldi and published by Cambridge University Press. This book was released on 2005-05-16 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt: Insects are the most diverse group of organisms in the 3 billion-year history of life on Earth, and the most ecologically dominant animals on land. This book chronicles for the first time the complete evolutionary history of insects: their living diversity, relationships and 400 million years of fossils. Whereas other volumes have focused on either living species or fossils, this is the first comprehensive synthesis of all aspects of insect evolution. The book is illustrated with 955 photo- and electronmicrographs, drawings, diagrams, and field photos, many in full colour and virtually all of them original. The book will appeal to anyone engaged with insect diversity: professional entomologists and students, insect and fossil collectors, and naturalists.
Book Synopsis Insect Development and Evolution by : Bruce S. Heming
Download or read book Insect Development and Evolution written by Bruce S. Heming and published by Cornell University Press. This book was released on 2018-10-18 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Life scientists are increasingly drawn to the study of comparative evolutionary biology. Insect Development and Evolution is the first synthesis of knowledge of insect development within an evolutionary framework and the first to survey the genetic, molecular, and whole organism literature. Bruce S. Heming provides a detailed introduction to the embryonic and postembryonic development of insects. Topics include:* reproductive systems,* male and female gametogenesis,* sperm transfer and use,* fertilization,* sex determination,* parthenogenesis,* embryogenesis,* postembryogenesis,* hormones,* and the role of ontogeny in insect evolution.Summaries for each of these topics cover structural events; comparative aspects (inserted on a phylogeny of the insect orders); and hormonal, genetic, and molecular causal analyses.Insect Development and Evolution treats examples throughout the hexapods with frequent reference to the evolution and development of other invertebrates. It also compares insects to vertebrates and places insect development into context with fossil evidence and earth history. Heming's book will become an essential tool for students and teachers of entomology. It will also interest insect systematists and paleontologists, insect behavioral ecologists, insect pathologists, applied entomologists, developmental and invertebrate biologists, and all scientists who use Drosophila as a model organism.
Book Synopsis Evolutionary Ecology of Parasites by : Robert Poulin
Download or read book Evolutionary Ecology of Parasites written by Robert Poulin and published by Princeton University Press. This book was released on 2011-06-27 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: Parasites have evolved independently in numerous animal lineages, and they now make up a considerable proportion of the biodiversity of life. Not only do they impact humans and other animals in fundamental ways, but in recent years they have become a powerful model system for the study of ecology and evolution, with practical applications in disease prevention. Here, in a thoroughly revised and updated edition of his influential earlier work, Robert Poulin provides an evolutionary ecologist's view of the biology of parasites. He sets forth a comprehensive synthesis of parasite evolutionary ecology, integrating information across scales from the features of individual parasites to the dynamics of parasite populations and the structuring of parasite communities. Evolutionary Ecology of Parasites presents an evolutionary framework for the study of parasite biology, combining theory with empirical examples for a broader understanding of why parasites are as they are and do what they do. An up-to-date synthesis of the field, the book is an ideal teaching tool for advanced courses on the subject. Pointing toward promising directions and setting a research agenda, it will also be an invaluable reference for researchers who seek to extend our knowledge of parasite ecology and evolution.
