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Molecular Evolution In Metazoa
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Book Synopsis Molecular Evolution: Towards the Origin of Metazoa by : Werner E.G. Müller
Download or read book Molecular Evolution: Towards the Origin of Metazoa written by Werner E.G. Müller and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, new genes and their proteins that revealed striking new insights into the early evolution of multicellular animals have been identified and characterized from members of the lowest metazoan phylum, the porifera (sponges). The unexpected result was that the sequences obtained from sponge displayed high similarity to those found in higher metazoa; in consequence, it was concluded that during the transition from protozoa to metazoa the major structural and regulatory proteins evolved only once. The data gathered are now powerful arguments to establish monophyly of metazoa; in addition, new insights on the evolutionary diversification of metazoa were obtained.
Book Synopsis Molecular Evolution: Evidence for Monophyly of Metazoa by : Werner E.G. Müller
Download or read book Molecular Evolution: Evidence for Monophyly of Metazoa written by Werner E.G. Müller and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume concentrates on the origin of multicellular animals, Metazoa. Until now, no unequivocal phylogeny has been produced. Therefore, the questions remain: Did Metazoa evolve from the Protozoa only once, or several times? Is the origin of animals monophyletic or polyphyletic? Especially the relationships between the existing lower metazoan phyla, particularly the Porifera (sponges) are uncertain. Based on sequence data of genes typical for multicellularity it is demonstrated that all Metazoa, including Porifera, should be placed into the kingdom Animalia together with the Eumetazoa. Therefore it is most likely that all animals are of monophyletic origin.
Book Synopsis Molds, Molecules, and Metazoa by : Peter R. Grant
Download or read book Molds, Molecules, and Metazoa written by Peter R. Grant and published by Princeton University Press. This book was released on 2014-07-14 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Through an integration of systematics, genetics, and related disciplines, the Modern Synthesis of Evolutionary Biology came into being over fifty years ago. Knowledge of evolution has since been transformed by several revolutions: the way we interpret the fossil record has been radically affected by theories of continental drift and asteroid impacts; the way we classify organisms has been influenced by the development of cladistics. Perhaps the most dramatic revolution has been the explosion in molecular biology of information about the genome. Aiming to capture the excitement of modern evolutionary biology, six prominent scientists here explore important issues and problems in their areas of specialization and identify the most promising directions of future research. The scope of this volume ranges from macroevolutionary patterns in the Precambrian to molecular evolution of the genome. Major themes include the origin and maintenance of variation and the causes of evolutionary change. Chapters on paleontology, ecology, behavior, development, and cell and molecular biology are contributed by Jim Valentine, Graham Bell, Mary Jane West Eberhard, Leo Buss, Marc Kirschner, and Marty Kreitman. The book contains an introductory chapter by John Bonner, whose seminal work is honored here. Originally published in 1992. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
Book Synopsis Molecular Evolution in Metazoa by : Eric Fontanillas
Download or read book Molecular Evolution in Metazoa written by Eric Fontanillas and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis focuses on variation in rate of molecular evolution in several metazoan clades. Such variation in molecular rates is difficult to directly assess, and the simplifications or misspecifications included in models of molecular evolution could introduce significant problems in phylogenetic methods (including topology reconstruction, rate tests and molecular dating). However, observed associations between molecular rate and biological traits (e.g. body size or diversification rate) could provide an indirect way to understand molecular processes and to evaluate variation in rate of molecular evolution. In Chapter 2, I explore the effects of priors for molecular rate and divergence times specified in a bayesian molecular dating method. The results show that the use of inappropriate priors could have led to underestimated dates of origin for metazoan in previous studies. In Chapter 3, using comparative approaches, I show that body size could be negatively correlated with rate of mitochondrial evolution. This suggests that the potential small size of early metazoans could have been associated with fast molecular rates. Moreover I show in Chapter 4 that the use of too shallow comparisons could not explain why a previous study fails to detect this relationship. In Chapter 5, a comparative study on mammals suggests that fast diversifying clades should undergo slowdown in their tempo of mitochondrial evolution. Several potential explanations for this relationship are discussed in light of recent findings concerning mitochondrial evolution. Body size and net diversification rate may have important influences on the rate of molecular evolution and therefore must be considered in molecular dating studies. However many other variables could interact directly or via confounding effects with molecular rate and deserve further investigations.
Book Synopsis Origin and Evolution of Metazoan Cell Types by : Sally Leys
Download or read book Origin and Evolution of Metazoan Cell Types written by Sally Leys and published by CRC Press. This book was released on 2021-05-23 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The evolution of animal diversity is strongly affected by the origin of novel cell and tissue types and their interactions with each other. Understanding the evolution of cell types will shed light on the evolution of novel structures, and in turn highlight how animals diversified. Several cell types may also have been lost as animals simplified – for example did sponges have nerves and lose them? This book reveals the interplay between gains and losses and provides readers with a better grasp of the evolutionary history of cell types. In addition, the book illustrates how new cell types allow a better understanding permitting the discrimination between convergence and homology.
Book Synopsis Deep Metazoan Phylogeny: The Backbone of the Tree of Life by : J. Wolfgang Wägele
Download or read book Deep Metazoan Phylogeny: The Backbone of the Tree of Life written by J. Wolfgang Wägele and published by Walter de Gruyter GmbH & Co KG. This book was released on 2014-08-22 with total page 770 pages. Available in PDF, EPUB and Kindle. Book excerpt: The growing success of molecular methods has challenged traditional views of animal evolution and a large number of alternative hypotheses are hotly debated today. For the deep metazoan phylogeny project, data sets of hitherto unmatched quality and quantity were compiled and analysed with innovative bioinformatics tools. The book begins at the base of the tree of life to discuss the origin of animals and early branches of the phylogenetic tree. The following section presents special data sets gained from mitochondrial genomes and from morphology, with a focus on nervous systems. The final section is dedicated to theoretical aspects of data analysis and new bioinformatics tools. The book closes with a unique general discussion of all hypotheses contained in previous chapters. This work provides the most comprehensive overview available of the state of the art in this exciting field of evolutionary research.
Book Synopsis Environmental Epigenetics by : L. Joseph Su
Download or read book Environmental Epigenetics written by L. Joseph Su and published by Springer. This book was released on 2015-05-18 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the toxicological and health implications of environmental epigenetics and provides knowledge through an interdisciplinary approach. Included in this volume are chapters outlining various environmental risk factors such as phthalates and dietary components, life states such as pregnancy and ageing, hormonal and metabolic considerations and specific disease risks such as cancer cardiovascular diseases and other non-communicable diseases. Environmental Epigenetics imparts integrative knowledge of the science of epigenetics and the issues raised in environmental epidemiology. This book is intended to serve both as a reference compendium on environmental epigenetics for scientists in academia, industry and laboratories and as a textbook for graduate level environmental health courses. Environmental Epigenetics imparts integrative knowledge of the science of epigenetics and the issues raised in environmental epidemiology. This book is intended to serve both as a reference compendium on environmental epigenetics for scientists in academia, industry and laboratories and as a textbook for graduate level environmental health courses.
Book Synopsis From DNA to Diversity by : Sean B. Carroll
Download or read book From DNA to Diversity written by Sean B. Carroll and published by John Wiley & Sons. This book was released on 2013-04-25 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this landmark work, the author team led by Dr. Sean Carroll presents the general principles of the genetic basis of morphological change through a synthesis of evolutionary biology with genetics and embryology. In this extensively revised second edition, the authors delve into the latest discoveries, incorporating new coverage of comparative genomics, molecular evolution of regulatory proteins and elements, and microevolution of animal development. An accessible text, focusing on the most well-known genes, developmental processes and taxa. Builds logically from developmental genetics and regulatory mechanisms to evolution at different genetic morphological levels. Adds major insights from recent genome studies, new evo-devo biology research findings, and a new chapter on models of variation and divergence among closely related species. Provides in-depth focus on key concepts through well-developed case studies. Features clear, 4-color illustrations and photographs, chapter summaries, references and a glossary. Presents the research of Dr. Carroll, a pioneer in the field and the past president of the Society for Developmental Biology.
Book Synopsis The Choanoflagellates by : Barry S. C. Leadbeater
Download or read book The Choanoflagellates written by Barry S. C. Leadbeater and published by Cambridge University Press. This book was released on 2015-01-08 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique account of the biology, ecology and evolution of choanoflagellates - the closest, known, living, unicellular relatives of animals.
Book Synopsis The Crucible of Creation by : Simon Conway Morris
Download or read book The Crucible of Creation written by Simon Conway Morris and published by Oxford ; New York : Oxford University Press. This book was released on 1998 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paleontologist Simon Conway Morris provides a guided tour of the world's richest treasure trove of fossils--a fantastically rich deposit of bizarre and bewildering Cambrain fossils, located in Western Canada. 4 plates. 90 linecuts.
Book Synopsis Molecular Evolution in Non-bilaterian Metazoa with Emphasis on Phylum Porifera by : Oliver Voigt
Download or read book Molecular Evolution in Non-bilaterian Metazoa with Emphasis on Phylum Porifera written by Oliver Voigt and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Key Transitions in Animal Evolution by : Rob Desalle
Download or read book Key Transitions in Animal Evolution written by Rob Desalle and published by CRC Press. This book was released on 2010-12-07 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tackling one of the most difficult and delicate of the evolutionary questions, this challenging book summarizes the more recent results in phylogenetics and developmental biology that address the evolution of key innovations in metazoans. Divided into three sections, the first considers the phylogenetic issues involving this area of the tree of lif
Book Synopsis Mitochondrial Genome Evolution by : Laurence Marechal-Drouard
Download or read book Mitochondrial Genome Evolution written by Laurence Marechal-Drouard and published by Academic Press. This book was released on 2012-10-03 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Botanical Research publishes in-depth and up-to-date reviews on a wide range of topics in plant sciences. Features a wide range of reviews by recognized experts on all aspects of plant genetics, biochemistry, cell biology, molecular biology, physiology and ecology. This thematic volume features reviews on Mitochondrial genome evolution. Publishes in-depth and up-to-date reviews on a wide range of topics in plant sciences Features a wide range of reviews by recognized experts on all aspects of plant genetics, biochemistry, cell biology, molecular biology, physiology and ecology This thematic volume features reviews on mitochondrial genome evolution
Book Synopsis The Shape of Life by : Rudolf A. Raff
Download or read book The Shape of Life written by Rudolf A. Raff and published by University of Chicago Press. This book was released on 2012-12-14 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rudolf Raff is recognized as a pioneer in evolutionary developmental biology. In their 1983 book, Embryos, Genes, and Evolution, Raff and co-author Thomas Kaufman proposed a synthesis of developmental and evolutionary biology. In The Shape of Life, Raff analyzes the rise of this new experimental discipline and lays out new research questions, hypotheses, and approaches to guide its development. Raff uses the evolution of animal body plans to exemplify the interplay between developmental mechanisms and evolutionary patterns. Animal body plans emerged half a billion years ago. Evolution within these body plans during this span of time has resulted in the tremendous diversity of living animal forms. Raff argues for an integrated approach to the study of the intertwined roles of development and evolution involving phylogenetic, comparative, and functional biology. This new synthesis will interest not only scientists working in these areas, but also paleontologists, zoologists, morphologists, molecular biologists, and geneticists.
Book Synopsis Comparative Molecular Neurobiology by : Y. Pichon
Download or read book Comparative Molecular Neurobiology written by Y. Pichon and published by Birkhäuser. This book was released on 2013-03-08 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is generally accepted that all living organisms present on earth derive from one single primordial cell born several billion years ago. One important step in the evolution occurred some 1. 5 billion years ago with the transition from small procaryote cells with relatively simple internal structures such as bacteria to larger and more compleX: eucaryotic cells such as those found in higher animals and plants. Large membrane proteins which enable the cells to communicate appeared early in evolution, and it is believed that the nerve membrane receptors and ionic channels which are observed today in both invertebrate and vertebrate species derive from a common ancestor. Basically, the three identified superfamilies, 1) ionotropic receptors (i. e. receptors containing an integral ionic channel), 2) metabotropic receptors (receptors coupled to G proteins) and 3) voltage-dependent ionic channels (Na+, K + and Ca2+ channels) were already well differentiated when vertebrates separated from invertebrate species. The large number of subtypes which are observed in each superfamily may be of more recent evolutionary origin. To understand how this happened, the best approach was to compare the sequences and the properties of the receptors and ionic channels in species sufficiently distant in the evolutionary tree. In the present volume, many of the best specialists in the field of comparative molecular neurobiology, several of them working on vertebrate and invertebrate species, have accepted to report their most recent findings.
Book Synopsis The Early Evolution of Metazoa and the Significance of Problematic Taxa by : Alberto M. Simonetta
Download or read book The Early Evolution of Metazoa and the Significance of Problematic Taxa written by Alberto M. Simonetta and published by Cambridge University Press. This book was released on 1991-09-26 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book embraces general problems of animal classification of animals and new information on their molecular sequences.
Book Synopsis Molecules and Morphology in Evolution by : Colin Patterson
Download or read book Molecules and Morphology in Evolution written by Colin Patterson and published by Cambridge University Press. This book was released on 1987-07-09 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers presented at the Third International Congress of Systematic and Evolutionary Biology, held at the University of Sussex, 4-11 July 1985.
