Molecular Evolution Towards The Origin Of Metazoa PDF Download
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| Author | : Werner E.G. Müller |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 191 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 3642722369 |
Download Molecular Evolution: Towards the Origin of Metazoa Book in PDF, ePub and Kindle
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.
| Author | : Werner E.G. Müller |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 257 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 3642487459 |
Download Molecular Evolution: Evidence for Monophyly of Metazoa Book in PDF, ePub and Kindle
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.
| Author | : Sally Leys |
| Publisher | : CRC Press |
| Total Pages | : 136 |
| Release | : 2021-05-23 |
| Genre | : Nature |
| ISBN | : 1315388200 |
Download Origin and Evolution of Metazoan Cell Types Book in PDF, ePub and Kindle
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.
| Author | : Peter R. Grant |
| Publisher | : Princeton University Press |
| Total Pages | : 194 |
| Release | : 2014-07-14 |
| Genre | : Science |
| ISBN | : 1400862671 |
Download Molds, Molecules, and Metazoa Book in PDF, ePub and Kindle
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.
| Author | : Werner E G Muller |
| Publisher | : |
| Total Pages | : 204 |
| Release | : 1997-11-12 |
| Genre | : |
| ISBN | : 9783642487460 |
Download Molecular Evolution Book in PDF, ePub and Kindle
| Author | : Melvin Calvin (Chemiker) |
| Publisher | : |
| Total Pages | : 278 |
| Release | : 1969 |
| Genre | : |
| ISBN | : 9780195003130 |
Download Chemical Evolution Book in PDF, ePub and Kindle
| Author | : Sidney W. Fox |
| Publisher | : |
| Total Pages | : 359 |
| Release | : 1972 |
| Genre | : Biochemistry |
| ISBN | : 9780716701637 |
Download Molecular Evolution and the Origin of Life Book in PDF, ePub and Kindle
| Author | : Joachim Reitner |
| Publisher | : Springer |
| Total Pages | : 927 |
| Release | : 2011-03-10 |
| Genre | : Science |
| ISBN | : 9781402092138 |
Download Encyclopedia of Geobiology Book in PDF, ePub and Kindle
The interplay between Geology and Biology has shaped the Earth from the early Precambrian, 4 billion years ago. Moving beyond the borders of the classical core disciplines, Geobiology strives to identify chains of cause-and-effect and synergisms between the geo- and the biospheres that have been driving the evolution of life in modern and ancient environments. Combining modern methods, geobiological information can be extracted not only from visible remains of organisms, but also from organic molecules, rock fabrics, minerals, isotopes and other tracers. An understanding of these processes and their signatures reveals enormous applied potentials with respect to issues of environment protection, public health, energy and resource management. The Encyclopedia of Geobiology has been designed to act as a key reference for students, researchers, teachers, and the informed public and to provide basic, but comprehensible knowledge on this rapidly expanding discipline that sits at the interface between modern geo- and biosciences.
| Author | : J. C. Avise |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 522 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 1461523818 |
Download Molecular Markers, Natural History and Evolution Book in PDF, ePub and Kindle
Molecular approaches have opened new windows on a host of ecological and evolutionary disciplines, ranging from population genetics and behavioral ecology to conservation biology and systematics. Molecular Markers, Natural History and Evolution summarizes the multi-faceted discoveries about organisms in nature that have stemmed from analyses of genetic markers provided by polymorphic proteins and DNAs. The first part of the book introduces rationales for the use of molecular markers, provides a history of molecular phylogenetics, and describes a wide variety of laboratory methods and interpretative tools in the field. The second and major portion of the book provides a cornucopia of biological applications for molecular markers, organized along a scale from micro-evolutionary topics (such as forensics, parentage, kinship, population structure, and intra-specific phylogeny) to macro-evolutionary themes (including species relationships and the deeper phylogenetic structure in the tree of life). Unlike most prior books in molecular evolution, the focus is on organismal natural history and evolution, with the macromolecules being the means rather than the ends of scientific inquiry. Written as an intellectual stimulus for the advanced undergraduate, graduate student, or the practicing biologist desiring a wellspring of research ideas at the interface of molecular and organismal biology, this book presents material in a manner that is both technically straightforward, yet rich with concepts and with empirical examples from the world of nature.
| Author | : John H. Gillespie |
| Publisher | : Oxford University Press |
| Total Pages | : 351 |
| Release | : 1994-05-26 |
| Genre | : Science |
| ISBN | : 0195357744 |
Download The Causes of Molecular Evolution Book in PDF, ePub and Kindle
This work provides a unified theory that addresses the important problem of the origin and maintenance of genetic variation in natural populations. With modern molecular techniques, variation is found in all species, sometimes at astonishingly high levels. Yet, despite these observations, the forces that maintain variation within and between species have been difficult subjects of study. Because they act very weakly and operate over vast time scales, scientists must rely on indirect inferences and speculative mathematical models. However, despite these obstacles, many advances have been made. The author's research in molecular genetics, evolution, and bio-mathematics has enabled him to draw on this work, and present a coherent and valuable view of the field. The book is divided into three parts. The first consists of three chapters on protein evolution, DNA evolution, and molecular mechanisms. This section reviews the experimental observations on genetic variation. The second part gives a unified treatment of the mathematical theory of selection in a fluctuating environment. The final two chapters combine the earlier assessments in a treatment of the scientific status of two competing theories for the maintenance of genetic variation. Steeped in the enormous advances population genetics has made over the past 25 years, this book has proven highly popular among human geneticists, biologists, evolutionary theorists, and bio-mathematicians.
