Download or read book Non Mendelian Inheritance of Mating type Determination in Paramecium Tetraurelia Role of the ScnRNA Pathway written by Deepankar Pratap Singh and published by . This book was released on 2013 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents a study of the molecular mechanisms underlying the determination of mating types in the ciliate Paramecium tetraurelia, and their non-Mendelian inheritance. The identification of mutations known to affect mating types reveals that type E depends on expression of the transmembrane protein mtA, which in turn requires the transcription factors mtB and mtC. Type O is determined by excision of the mtA promoter during the development of the somatic macronucleus from the germline micronucleus, a stage when the genome is entirely rearranged to eliminate transposable elements and their single-copy remnants. These deletions are targeted by scnRNAs, germline-derived small RNAs produced during meiosis that first scan the maternal macronuclear genome to identify missing sequences, and then allow the zygotic macronucleus to reproduce the same deletions. Excision of the mtA promoter is regulated by the scnRNA pathway, explaining the maternal inheritance of mating types. In the sibling species P. septaurelia, mating-type genes are conserved but type O is determined by coding-sequence deletions in mtB. Three main conclusions are drawn from this study: (1) independent evolution of similar mechanisms in the two species suggests frequent exaptation of the scnRNA pathway to regulate cellular genes and to mediate epigenetic inheritance of phenotypic polymorphisms; (2) the mtF gene, required for type O determination, encodes a novel trans-acting factor involved in a subset of rearrangements; (3) an insertion polymorphism in the germline mtB gene reveals an unanticipated consequence of scnRNA-mediated deletions, potentially resulting in hybrid dysgenesis and speciation.
Download or read book Evo Devo Non model Species in Cell and Developmental Biology written by Waclaw Tworzydlo and published by Springer Nature. This book was released on 2019-10-09 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evolutionary developmental biology or evo-devo is a field of biological research that compares the underlying mechanisms of developmental processes in different organisms to infer the ancestral condition of these processes and elucidate how they have evolved. It addresses questions about the developmental bases of evolutionary changes and evolution of developmental processes. The book’s content is divided into three parts, the first of which discusses the theoretical background of evo-devo. The second part highlights new and emerging model organisms in the evo-devo field, while the third and last part explores the evo-devo approach in a broad comparative context. To the best of our knowledge, no other book combines these three evo-devo aspects: theoretical considerations, a comprehensive list of emerging model species, and comparative analyses of developmental processes. Given its scope, the book will offer readers a new perspective on the natural diversity of processes at work in cells and during the development of various animal groups, and expand the horizons of seasoned and young researchers alike.
Download or read book The Biology of Paramecium written by R. Wichterman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: This completely revised, updated, and expanded edition has been neces sitated by the many important newer discoveries that have been made since the publication of the first edition. That volume contained almost 2000 references from the 1600s to 1953. Since then and after an extensive search, I have accumulated some 3800 additional titles from the world's literature on Paramecium. After certain titles that largely represented abstracts and preliminary reports that were followed by full research papers were eliminated, approximately 4400 full titles from the 1600s to the present were selected for inclusion in this edition. Most of the titles in the Bibliography are the more recent ones beginning with 1953. I consider the Bibliography an important part of the book: A good title of a paper in a journal is a minature abstract of its contents. Thus, the reader who may be interested in obtaining additional information not found in the book may refer directly to the original source. A cursory examination of the Bibliography will reveal that parame cium research has extended into all branches of biology, including bio chemistry and biophysics. Like other areas of science, paramecium research has become highly specialized and fragmented. I have attempted to organize and present the basic information in one book. Because of space limitations, some items may have been dealt with briefly. It is in such instances that the Bibliography will be found to be invaluable.
Download or read book RNA Infrastructure and Networks written by Lesley J. Collins and published by Springer Science & Business Media. This book was released on 2011-09-15 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: RNAs form complexes with proteins and other RNAs. The RNA‐infrastructure represents the spatiotemporal interaction of these proteins and RNAs in a cell‐wide network. RNA Infrastructure and Networks brings together these ideas to illustrate the scope of RNA‐based biology, and how connecting RNA mechanisms is a powerful tool to investigate regulatory pathways. This book is but a taste of the wide range of RNA‐based mechanisms that connect in the RNA infrastructure.
Download or read book Toxocara and Toxocariasis written by and published by Academic Press. This book was released on 2020-05-05 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt: Toxocara and Toxocariasis, Volume 109 in the Advances in Parasitology series, includes medical studies of parasites of major influence, along with reviews of more traditional areas, such as zoology, taxonomy and life history, all topics which help to shape current thinking and applications. This latest release includes chapters on organism and the recognition of the disease, dogs (and cats) disease, diagnosis, prevalence of infection, and treatment, and more. Informs and updates on all the latest developments in the field of parasitology Contains contributions from leading authorities and industry experts Features reviews of more traditional areas, such as zoology, taxonomy and life history, which help to shape current thinking and applications
Download or read book Biodiversity and Evolution written by Philippe Grandcolas and published by Elsevier. This book was released on 2018-04-17 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biodiversity and Evolution includes chapters devoted to the evolution and biodiversity of organisms at the molecular level, based on the study of natural collections from the Museum of Natural History. The book starts with an epistemological and historical introduction and ends with a critical overview of the Anthropocene epoch. Explores the study of natural collections of the Museum of Natural History Examines evolution and biodiversity at the molecular level Features an introduction focusing on epistemology and history Provides a critical overview
Download or read book Epigenetics of Aging and Longevity written by Alexey Moskalev and published by Academic Press. This book was released on 2017-11-17 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: Epigenetics of Aging and Longevity provides an in-depth analysis of the epigenetic nature of aging and the role of epigenetic factors in mediating the link between early-life experiences and life-course health and aging. Chapters from leading international contributors explore the effect of adverse conditions in early-life that may result in disrupted epigenetic pathways, as well as the potential to correct these disrupted pathways via targeted therapeutic interventions. Intergenerational epigenetic inheritance, epigenetic drug discovery, and the role of epigenetic mechanisms in regulating specific age-associated illnesses—including cancer and cardiovascular, metabolic, and neurodegenerative diseases—are explored in detail. This book will help researchers in genomic medicine, epigenetics, and biogerontology better understand the epigenetic determinants of aging and longevity, and ultimately aid in developing therapeutics to extend the human life-span and treat age-related disease. Offers a comprehensive overview of the epigenetic nature of aging, as well as the impact of epigenetic factors on longevity and regulating age-related disease Provides readers with clinical and epidemiological evidence for the role of epigenetic mechanisms in mediating the link between early-life experiences, life-course health and aging trajectory Applies current knowledge of epigenetic regulatory pathways towards developing therapeutic interventions for age-related diseases and extending the human lifespan
Download or read book Principles of Cloning written by Jose Cibelli and published by Academic Press. This book was released on 2013-09-24 with total page 585 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles of Cloning, Second Edition is the fully revised edition of the authoritative book on the science of cloning. The book presents the basic biological mechanisms of how cloning works and progresses to discuss current and potential applications in basic biology, agriculture, biotechnology, and medicine. Beginning with the history and theory behind cloning, the book goes on to examine methods of micromanipulation, nuclear transfer, genetic modification, and pregnancy and neonatal care of cloned animals. The cloning of various species—including mice, sheep, cattle, and non-mammals—is considered as well. The Editors have been involved in a number of breakthroughs using cloning technique, including the first demonstration that cloning works in differentiated cells done by the Recipient of the 2012 Nobel Prize for Physiology or Medicine – Dr John Gurdon; the cloning of the first mammal from a somatic cell – Drs Keith Campbell and Ian Wilmut; the demonstration that cloning can reset the biological clock - Drs Michael West and Robert Lanza; the demonstration that a terminally differentiated cell can give rise to a whole new individual – Dr Rudolf Jaenisch and the cloning of the first transgenic bovine from a differentiated cell – Dr Jose Cibelli. The majority of the contributing authors are the principal investigators on each of the animal species cloned to date and are expertly qualified to present the state-of-the-art information in their respective areas. First and most comprehensive book on animal cloning, 100% revised Describes an in-depth analysis of current limitations of the technology and research areas to explore Offers cloning applications on basic biology, agriculture, biotechnology, and medicine
Download or read book Handbook of Genetics written by Robert C. King and published by Springer. This book was released on 1974-11-01 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this and future volumes of the Handbook of Genetics is to bring together a collection of relatively short, authoritative essays or annotated compilations of data on topics of significance to geneticists. Many of the essays will deal with various aspects of the biology of certain species selected because they are favorite subjects for genetic investigation in nature or the laboratory. Often there will be an encyclopedic amount of information available on such a species, with new papers appearing daily. Most of these will be written for specialists in a jargon that is be wildering to a novice, and sometimes even to a veteran geneticist working with evolutionarily distant organisms. For such readers what is needed is a written introduction to the morphology, life cycle, reproductive be havior, and culture methods for the species in question. What are its par ticular advantages (and disadvantages) for genetic study, and what have we learned from it? Where are the classic papers, the key bibliographies, and how does one get stocks of wild type or mutant strains? The chapters devoted to different species will contain information of this sort. Only a few hundreds of the millions of species available to biologists have been subjected to detailed genetic study. However, those that have make up a very heterogeneous sample of the living world.
Download or read book Biological Effects of Electric and Magnetic Fields written by David O. Carpenter and published by Academic Press. This book was released on 1994-06-15 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent concerns over the possible hazards of electrical and magnetic fields in the home and workplace are comprehensively addressed within this book. The chapters contain detailed research on the biological effects of electric and magnetic fields, and evidence for and against any interaction of electromagnetic fields (EMFs) and the biological systems. The relative risk of exposure to EMFs Putative behavioral and neural effects of EMFs EMF effects on cells
Download or read book Quadruplex Nucleic Acids As Targets For Medicinal Chemistry written by and published by Academic Press. This book was released on 2020-08-26 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: The realisation that human, animal, viral and bacterial genomes all contain over-representation of higher-order quadruplex structures in regulatory and other pharmacologically-useful regions, has led to a large number of studies aimed at exploiting this findings for therapeutic and diagnostic purposes. Quadruplex-binding small molecules are starting to be evaluated in human clinical trials. Provides the authority and expertise of leading contributors from an international board of authors Presents the latest release in the Annual Reports in Medicinal Chemistry series
Download or read book Human Reproductive and Prenatal Genetics written by Peter C.K. Leung and published by Elsevier. This book was released on 2023-03-22 with total page 930 pages. Available in PDF, EPUB and Kindle. Book excerpt: Human Reproductive and Prenatal Genetics, Second Edition provides application-driven coverage of key topics in human reproductive and prenatal genetics, including genetic control underlying the development of the reproductive tracts and gametogenesis, the genetics of fertilization and implantation, the genetic basis of female and male infertility, as well as genetic and epigenetic aspects of assisted reproduction. Also examined are the genetics and epigenetics of the placenta in normal and abnormal pregnancy, preimplantation genetic diagnosis and screening, and cutting-edge advances in noninvasive prenatal screening, prenatal genetic counseling, and bioethical and medicolegal aspects of relevance in the lab and clinic. This new edition has been fully revised to address new and evolving technologies in human reproductive genetics, with new chapters added on chromatin landscapes and sex determination, genetic alterations of placental development and preeclampsia, metabolism and inflammation in PCOS, pre-implantational genetic testing, maternal genetic disorders, bioethics, and future applications. Features chapter contributions from leading international scientists and clinicians Provides in-depth coverage of key topics in human reproductive and prenatal genetics, including genetic controls, fertilization, placental development, embryo implantation, in vitro culture of the human embryo for the study of post-implantation development, and more Identifies how researchers and clinicians can implement the latest genetic, epigenetic, and –omics-based approaches Includes all new chapters on evolving technologies and recent genetic discoveries of relevance to reproductive medicine
Download or read book Mobile DNA II written by Nancy L. Craig and published by Amer Society for Microbiology. This book was released on 2002 with total page 1204 pages. Available in PDF, EPUB and Kindle. Book excerpt: An extension of the original volume, reflecting the latest advances in understanding these elements. This title is published by the American Society for Microbiology Press and distributed by Taylor and Francis in rest of world territories.
Download or read book Handbook of Cell Signaling written by Ralph A. Bradshaw and published by Academic Press. This book was released on 2009-11-03 with total page 3188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Cell Signaling, Three-Volume Set, 2e, is a comprehensive work covering all aspects of intracellular signal processing, including extra/intracellular membrane receptors, signal transduction, gene expression/translation, and cellular/organotypic signal responses. The second edition is an up-to-date, expanded reference with each section edited by a recognized expert in the field. Tabular and well illustrated, the Handbook will serve as an in-depth reference for this complex and evolving field. Handbook of Cell Signaling, 2/e will appeal to a broad, cross-disciplinary audience interested in the structure, biochemistry, molecular biology and pathology of cellular effectors. Contains over 350 chapters of comprehensive coverage on cell signaling Includes discussion on topics from ligand/receptor interactions to organ/organism responses Provides user-friendly, well-illustrated, reputable content by experts in the field
Download or read book Microbial Globins Status and Opportunities written by and published by Academic Press. This book was released on 2013-09-14 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Microbial Physiology is one of the most successful and prestigious series from Academic Press, an imprint of Elsevier. It publishes topical and important reviews, interpreting physiology to include all material that contributes to our understanding of how microorganisms and their component parts work. First published in 1967, it is now in its 63rd volume. The Editors have always striven to interpret microbial physiology in the broadest context and have never restricted the contents to “traditional views of whole cell physiology. Now edited by Professor Robert Poole, University of Sheffield, Advances in Microbial Physiology continues to be an influential and very well reviewed series. Informs and updates on all the latest developments in the field Contributions from leading authorities and industry experts
Download or read book Encyclopedia of Evolutionary Biology written by and published by Academic Press. This book was released on 2016-04-14 with total page 2138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encyclopedia of Evolutionary Biology, Four Volume Set is the definitive go-to reference in the field of evolutionary biology. It provides a fully comprehensive review of the field in an easy to search structure. Under the collective leadership of fifteen distinguished section editors, it is comprised of articles written by leading experts in the field, providing a full review of the current status of each topic. The articles are up-to-date and fully illustrated with in-text references that allow readers to easily access primary literature. While all entries are authoritative and valuable to those with advanced understanding of evolutionary biology, they are also intended to be accessible to both advanced undergraduate and graduate students. Broad topics include the history of evolutionary biology, population genetics, quantitative genetics; speciation, life history evolution, evolution of sex and mating systems, evolutionary biogeography, evolutionary developmental biology, molecular and genome evolution, coevolution, phylogenetic methods, microbial evolution, diversification of plants and fungi, diversification of animals, and applied evolution. Presents fully comprehensive content, allowing easy access to fundamental information and links to primary research Contains concise articles by leading experts in the field that ensures current coverage of each topic Provides ancillary learning tools like tables, illustrations, and multimedia features to assist with the comprehension process
Download or read book Applied Mycology written by Mahendra Rai and published by CABI. This book was released on 2009 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fungal kingdom consists of a wide variety of organisms with a diverse range of forms and functions. Fungi have been utilized for thousands of years and their importance in agriculture, medicine, food production and the environmental sciences is well known. New advances in genomic and metabolomic technologies have allowed further developments in the use of fungi in industry and medicine, increasing the need for a compilation of new applications, developments and technologies across the mycological field. Applied Mycology brings together a range of contributions, highlighting the diverse nature of current research. Chapters include discussions of fungal associations in the environment, agriculture and forestry, long established and novel applications of fungi in fermentation, the use of fungi in the pharmaceutical industry, the growing recognition of fungal infections, current interests in the use fungal enzymes in biotechnology and the new and emerging field of myconanotechnology. Demonstrating the broad coverage and importance of mycological research, this book will be of interest to researchers and students in all biological sciences.
