Download or read book The Evolution of Sensory and Neurosecretory Cell Types in Bilaterian Brains written by Kristin Teßmar-Raible and published by . This book was released on 2004 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evolutionary Origin of Sensory and Neurosecretory Cell Types written by Gerhard Schlosser and published by CRC Press. This book was released on 2021-06-17 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most vertebrate cranial sense organs arise from placodes. These placodes give rise to sensory neurons that transmit information to the brain and neurosecretory cells. This book reviews the evolutionary origin of the sensory and neurosecretory cell types. It summarizes our current understanding of vertebrate evolution, clarifies conceptual issues relating to homology and evolutionary innovation of cell types, compares the sensory and neurosecretory cell types with similar cell types in other animals, and addresses the question of how cranial placodes evolved as novel structures in vertebrates by redeploying pre-existing and sometimes evolutionarily ancient cell types.
Download or read book The Evolution of Sensory and Neurosecretory Cell Types in Bilaterian Brains written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis deals with the origin of the photosensory and neurosecretory cell types in the bilaterian brain. As the main experimental system, I used the annelid Platynereis dumerilii. Platynereis is an emerging protostomian model organism that is ideally suited for comparisons with vertebrates because it has retained many ancestral cell types, yet has a relatively simple morphology and mode of development. In the first section, I describe my contribution to the reconstruction of the urbilaterian photosensory system. By cloning and analyzing a novel opsin gene from Platynereis, I was able to provide molecular support for the hypothesis that Urbilateria (the last common ancestors of all Bilateria) already possessed two photoreceptor cell types (PRCs) 6 rhabdomeric and ciliary PRCs. I further corroborated this by the comparative analysis of different upstream regulators for each PRC type. Presumably only the rhabdomeric type was ancestrally involved in vision, while the ciliary type was a light detector in the inner brain (like the ciliary PRCs of the vertebrate pineal organ). Both types, however, were recruited into the vertebrate eye, which is thus a compound structure. This finding provides a novel basis for understanding both the molecular similarities and differences between the vertebrate and invertebrate eyes. I extended these analyses in the second section by investigating the molecular and morphological set-up of the median brain of the Platynereis larva and in particular of the apical organ (APO). The APO is a specialized, highly neurosecretory structure. From a detailed analysis of molecular markers and cellular morphologies I concluded that the median brain of trochophora type larvae with the APO as its core structure and the ventral/ median prosencephalon of vertebrates with the hypothalamus as its center share common heritage from their urbilaterian ancestor. Both vertebrate eyes and hypothalamus have been shown to require proper Hedgehog (Hh) signalling.
Download or read book Development of Sensory and Neurosecretory Cell Types written by Gerhard Schlosser and published by CRC Press. This book was released on 2021-06-17 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most of the cranial sense organs of vertebrates arise from embryonic structures known as cranial placodes. Such placodes also give rise to sensory neurons that transmit information to the brain as well as to many neurosecretory cells. This book focuses on the development of sensory and neurosecretory cell types from cranial placodes by introducing the vertebrate head with its sense organs and neurosecretory organs and providing an overview of the various cranial placodes and their derivatives, including evidence of common embryonic primordia. Schlosser discusses how these primordia are established in the early embryo and how individual placodes develop. The latter chapters explain how various placodally derived sensory and neurosecretory cell types differentiate into discrete structures.
Download or read book The Evolution of Sensory and Neurosensory Cell Types in Bilaterian Brains written by K.G. Kristin Teßmar-Raible and published by . This book was released on 2004 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vertebrate Cranial Placodes written by GERHARD. SCHLOSSER and published by CRC Press. This book was released on 2021-04-29 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most of the cranial sense organs of vertebrates arise from embryonic structures known as cranial placodes. Such placodes also give rise to sensory neurons that transmit information to the brain as well as to many neurosecretory cells. This book focuses on the development of sensory and neurosecretory cell types from cranial placodes by introducing the vertebrate head with its sense organs and neurosecretory organs and providing an overview of the various cranial placodes and their derivatives, including evidence of common embryonic primordia. Schlosser discusses how these primordia are established in the early embryo and how individual placodes develop. The latter chapters explain how various placodally derived sensory and neurosecretory cell types differentiate into discrete structures.
Download or read book Neuroanatomy of the Zebrafish Brain written by Mario F. Wulliman and published by Birkhäuser. This book was released on 2012-12-06 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Brain Evolution by Design written by Shuichi Shigeno and published by Springer. This book was released on 2017-02-07 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a new, detailed examination that explains how elegant brains have been shaped in evolution. It consists of 19 chapters written by academic professionals in neuroscience, opening with the origin of single-celled creatures and then introducing primordial types in invertebrates with the great abundance of the brains of vertebrates. Important topics are provided in a timely manner, because novel techniques emerged rapidly—as seen, for examples, in the next-generation sequencers and omics approaches. With the explosion of big data, neural-related genes and molecules is now on the radar. In fact, Europe’s big science and technology projects, a €1 billion plan called the Human Brain Project and the Blue Brain Project to understand mammalian brain networks, have been launched in recent years. Furthermore, with the rise of recently advanced artificial intelligence, there is great enthusiasm for understanding the evolution of neural networks. The views from brain evolution in nature provide an essential opportunity to generate ideas for novel neuron- and brain-inspired computation. The ambition behind this book is that it will stimulate young scientists who seek a deeper understanding in order to find the basic principles shaping brains that provided higher cognitive functions in the course of evolution.
Download or read book Neurohormones in Invertebrates written by M. C. Thorndyke and published by Cambridge University Press. This book was released on 1988-10-20 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a particularly timely survey of invertebrate peptide hormones. Interest in invertebrate peptide hormones has focused upon two important and related aspects, both of which are fully covered in this volume. As such, it should have a broad appeal to scientists from a number of disciplines.
Download or read book Comparative Vertebrate Neuroanatomy written by Ann B. Butler and published by John Wiley & Sons. This book was released on 2005-09-02 with total page 739 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comparative Vertebrate Neuroanatomy Evolution and Adaptation Second Edition Ann B. Butler and William Hodos The Second Edition of this landmark text presents a broad survey of comparative vertebrate neuroanatomy at the introductory level, representing a unique contribution to the field of evolutionary neurobiology. It has been extensively revised and updated, with substantially improved figures and diagrams that are used generously throughout the text. Through analysis of the variation in brain structure and function between major groups of vertebrates, readers can gain insight into the evolutionary history of the nervous system. The text is divided into three sections: * Introduction to evolution and variation, including a survey of cell structure, embryological development, and anatomical organization of the central nervous system; phylogeny and diversity of brain structures; and an overview of various theories of brain evolution * Systematic, comprehensive survey of comparative neuroanatomy across all major groups of vertebrates * Overview of vertebrate brain evolution, which integrates the complete text, highlights diversity and common themes, broadens perspective by a comparison with brain structure and evolution of invertebrate brains, and considers recent data and theories of the evolutionary origin of the brain in the earliest vertebrates, including a recently proposed model of the origin of the brain in the earliest vertebrates that has received strong support from newly discovered fossil evidence Ample material drawn from the latest research has been integrated into the text and highlighted in special feature boxes, including recent views on homology, cranial nerve organization and evolution, the relatively large and elaborate brains of birds in correlation with their complex cognitive abilities, and the current debate on forebrain evolution across reptiles, birds, and mammals. Comparative Vertebrate Neuroanatomy is geared to upper-level undergraduate and graduate students in neuroanatomy, but anyone interested in the anatomy of the nervous system and how it corresponds to the way that animals function in the world will find this text fascinating.
Download or read book Structure and Evolution of Invertebrate Nervous Systems written by Andreas Schmidt-Rhaesa and published by Oxford University Press. This book was released on 2015-12-17 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nervous system is particularly fascinating for many biologists because it controls animal characteristics such as movement, behavior, and coordinated thinking. Invertebrate neurobiology has traditionally been studied in specific model organisms, whilst knowledge of the broad diversity of nervous system architecture and its evolution among metazoan animals has received less attention. This is the first major reference work in the field for 50 years, bringing together many leading evolutionary neurobiologists to review the most recent research on the structure of invertebrate nervous systems and provide a comprehensive and authoritative overview for a new generation of researchers. Presented in full colour throughout, Structure and Evolution of Invertebrate Nervous Systems synthesizes and illustrates the numerous new findings that have been made possible with light and electron microscopy. These include the recent introduction of new molecular and optical techniques such as immunohistochemical staining of neuron-specific antigens and fluorescence in-situ-hybridization, combined with visualization by confocal laser scanning microscopy. New approaches to analysing the structure of the nervous system are also included such as micro-computational tomography, cryo-soft X-ray tomography, and various 3-D visualization techniques. The book follows a systematic and phylogenetic structure, covering a broad range of taxa, interspersed with chapters focusing on selected topics in nervous system functioning which are presented as research highlights and perspectives. This comprehensive reference work will be an essential companion for graduate students and researchers alike in the fields of metazoan neurobiology, morphology, zoology, phylogeny and evolution.
Download or read book Encyclopedia of Biology written by Don Rittner and published by Infobase Publishing. This book was released on 2004-08 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains approximately 800 alphabetical entries, prose essays on important topics, line illustrations, and black-and-white photographs.
Download or read book Encyclopedic Reference of Parasitology written by Heinz Mehlhorn and published by Springer Science & Business Media. This book was released on 2001-05-21 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition provides a comprehensive review of the facts and trends in veterinarian and human parasitology. Several internationally renowned specialists have been added to the authors of the first edition, and the whole is now organised in an encyclopedic arrangement of comprehensive keywords, thus speeding up the search for information.
Download or read book Yearbook of Pediatric Endocrinology 2008 written by Jean-Claude Carel and published by Karger Medical and Scientific Publishers. This book was released on 2008-01-01 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: The body of knowledge in most medical specialties is rapidly expanding, making it virtually impossible to follow all advances in clinical and basic sciences that are relevant to a given field. This is particularly true in pediatric endocrinology, at the cross-road of pediatrics, endocrinology, development and genetics.The 'Yearbook of Pediatric Endocrinology 2008' brings you abstracts of articles that reported the year's breakthrough developments in the basic sciences and evidence-based new knowledge in clinical research and clinical practice that are relevant to the field. Twelve Associate Editors and their co-authors selected from several thousand papers those that brought the most meaningful new information, summarized them and provided comments to put them into perspective. The papers are classified into those that identify new genes involved in diseases, new hormones, concepts revised or re-centered, important observations for clinical practice, large-scale clinical trials, new mechanisms, new paradigms, important review articles, new fears and new hopes. This is the fifth volume of the 'Yearbook of Pediatric Endocrinology'. To acknowledge the European Society for Paediatric Endocrinology (ESPE) endorsement of the Yearbook, the publication of the Yearbook is linked to ESPE's annual meetings, covering the medical and scientific literature from March 2007 through May 2008. The 'Yearbook of Pediatric Endocrinology 2008' will help busy clinicians and scientists, pediatric endocrinologists, and also pediatricians and endocrinologists keep informed on new advances in their field.
Download or read book Atlas of Endocrine Organs written by Akira Matsumoto and published by Springer. This book was released on 1992 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Old Questions and Young Approaches to Animal Evolution written by José M. Martín-Durán and published by Springer. This book was released on 2019-07-22 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Animal evolution has always been at the core of Biology, but even today many fundamental questions remain open. The field of animal ‘evo-devo’ is leveraging recent technical and conceptual advances in development, paleontology, genomics and transcriptomics to propose radically different answers to traditional evolutionary controversies. This book is divided into four parts, each of which approaches animal evolution from a different perspective. The first part (chapters 2 and 3) investigates how new sources of evidence have changed conventional views of animal origins, while the second (chapters 4–8) addresses the connection between embryogenesis and evolution, and the genesis of cellular, tissue and morphological diversity. The third part (chapters 9 and 10) investigates how big data in molecular biology is transforming our understanding of the mechanisms governing morphological change in animals. In closing, the fourth part (chapters 11–13) explores new theoretical and conceptual approaches to animal evolution. ‘Old questions and young approaches to animal evolution’ offers a comprehensive and updated view of animal evolutionary biology that will serve both as a first step into this fascinating field for students and university educators, and as a review of complementary approaches for researchers.
Download or read book Jellyfish and Polyps written by Antonella Leone and published by MDPI. This book was released on 2020-11-20 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Special Issue of Marine Drugs gathers recent investigations on the proteomes, metabolomes, transcriptomes, and the associated microbiomes of marine jellyfish and polyps, including bioactivity studies of their compounds and more generally, on their biotechnological potential, witnessing the increasingly recognized importance of Cnidaria as a largely untapped Blue Growth resource for new drug discovery. These researches evoke the outstanding ecological importance of cnidarians in marine ecosystems worldwide, calling for a global monitoring and conservation of marine biodiversity, so that the biotechnological exploitation of marine living resources will be carried out to conserve and sustainably use the natural capital of the oceans.
