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Co Evolutionary Relationship Between Mobile Dna And Eukaryotes
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Book Synopsis Co-evolutionary Relationship Between Mobile DNA and Eukaryotes by : Zhihui Yu
Download or read book Co-evolutionary Relationship Between Mobile DNA and Eukaryotes written by Zhihui Yu and published by . This book was released on 2004 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The sequencing of eukaryotic model organisms has provided us an unprecedented opportunity for a genome-wide characterization of Transposable Elements (TEs) and the study of TE-host relationships. By developing methodologies on database mining, we explored the existence of MUtator (Mu)-Like Elements (MULEs) in Arabidopsis thaliana and Oryza sativa. Mu elements were first discovered in Zea mays; so far, a dozen of the elements have been identified in the genome. We identified a total of 1392 MULEs from the sequenced Arabidopsis genome. They represent one of the most abundant, diversified, yet still mobile DNA transposon families in eukaryotes. The Arabidopsis MULEs are composed of not only the elements showing the typical Mu-family-specific terminal structure (that is the long Terminal Inverted Repeat, TIR), but also a novel type of non-TIR MULEs. Some of this latter type of elements was found to be active both transcriptionally and transpositionally. To understand host-mediated genome-wide regulation(s) on the MULE system in Arabidopsis, we characterized 235 MULE mobility-specific genes (or mudrA-like genes) by mapping them on the sequenced Arabidopsis chromosomes and performing a genome-wide expression assay utilizing Arabidopsis METHYLTRANSFERSE1 (MET1) mutant (met2) plants, we showed that MET1-mediated global CpG methylation can only repress a portion of the gene family; its efficiency depends largely on the gene locations within the context of Arabidopsis chromatin remodeling: stronger in heterochromatic regions but weaker in euchromatic ones. This finding suggests that the Arabidopsis heterochromatic regions are not just a graveyard for the accumulation of defective elements; rather, they may have been playing an important role on the repression of TE activity via, at least in part, exerting MET1-mediated silencing effect. Our expression analysis also suggested that a TIR structure is not necessarily required for the MET1-mediated si" --
Book Synopsis Mitonuclear Ecology by : Geoffrey E. Hill
Download or read book Mitonuclear Ecology written by Geoffrey E. Hill and published by Oxford University Press, USA. This book was released on 2019-04-30 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: This novel text provides a concise synthesis of how the interactions between mitochondrial and nuclear genes have played a major role in shaping the ecology and evolution of eukaryotes. The foundation for this new focus on mitonuclear interactions originated from research in biochemistry and cell biology laboratories, although the broader ecological and evolutionary implications have yet to be fully explored. The imperative for mitonuclear coadaptation is proposed to be a major selective force in the evolution of sexual reproduction and two mating types in eukaryotes, in the formation of species, in the evolution of ornaments and sexual selection, in the process of adaptation, and in the evolution of senescence. The book highlights the importance of mitonuclear coadaptation to the evolution of complex life and champions mitonuclear ecology as an important subdiscipline in ecology and evolution.
Book Synopsis Mobile DNA III by : Michael Chandler
Download or read book Mobile DNA III written by Michael Chandler and published by John Wiley & Sons. This book was released on 2020-07-24 with total page 1321 pages. Available in PDF, EPUB and Kindle. Book excerpt: An exploration of the raw power of genetic material to refashion itself to any purpose... Virtually all organisms contain multiple mobile DNAs that can move from place to place, and in some organisms, mobile DNA elements make up a significant portion of the genome. Mobile DNA III provides a comprehensive review of recent research, including findings suggesting the important role that mobile elements play in genome evolution and stability. Editor-in-Chief Nancy L. Craig assembled a team of multidisciplinary experts to develop this cutting-edge resource that covers the specific molecular mechanisms involved in recombination, including a detailed structural analysis of the enzymes responsible presents a detailed account of the many different recombination systems that can rearrange genomes examines the tremendous impact of mobile DNA in virtually all organisms Mobile DNA III is valuable as an in-depth supplemental reading for upper level life sciences students and as a reference for investigators exploring new biological systems. Biomedical researchers will find documentation of recent advances in understanding immune-antigen conflict between host and pathogen. It introduces biotechnicians to amazing tools for in vivo control of designer DNAs. It allows specialists to pick and choose advanced reviews of specific elements and to be drawn in by unexpected parallels and contrasts among the elements in diverse organisms. Mobile DNA III provides the most lucid reviews of these complex topics available anywhere.
Book Synopsis In the Light of Evolution by : National Academy of Sciences
Download or read book In the Light of Evolution written by National Academy of Sciences and published by . This book was released on 2007 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Arthur M. Sackler Colloquia of the National Academy of Sciences address scientific topics of broad and current interest, cutting across the boundaries of traditional disciplines. Each year, four or five such colloquia are scheduled, typically two days in length and international in scope. Colloquia are organized by a member of the Academy, often with the assistance of an organizing committee, and feature presentations by leading scientists in the field and discussions with a hundred or more researchers with an interest in the topic. Colloquia presentations are recorded and posted on the National Academy of Sciences Sackler colloquia website and published on CD-ROM. These Colloquia are made possible by a generous gift from Mrs. Jill Sackler, in memory of her husband, Arthur M. Sackler.
Book Synopsis Evolution by Gene Duplication by : Susumu Ohno
Download or read book Evolution by Gene Duplication written by Susumu Ohno and published by Springer Science & Business Media. This book was released on 2013-12-11 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is said that "necessity is the mother of invention". To be sure, wheels and pulleys were invented out of necessity by the tenacious minds of upright citi zens. Looking at the history of mankind, however, one has to add that "Ieisure is the mother of cultural improvement". Man's creative genius flourished only when his mind, freed from the worry of daily toils, was permitted to entertain apparently useless thoughts. In the same manner, one might say with regard to evolution that "natural selection mere(y tnodifted, while redundanry created". Natural selection has been extremely effective in policing alleHe mutations which arise in already existing gene loci. Because of natural selection, organisms have been able to adapt to changing environments, and by adaptive radiation many new species were created from a common ancestral form. Y et, being an effective policeman, natural selection is extremely conservative by nature. Had evolution been entirely dependent upon natural selection, from a bacterium only numerous forms of bacteria would have emerged. The creation of metazoans, vertebrates and finally mammals from unicellular organisms would have been quite impos sible, for such big leaps in evolution required the creation of new gene loci with previously nonexistent functions. Only the cistron which became redun dant was able to escape from the relentless pressure of natural selection, and by escaping, it accumulated formerly forbidden mutations to emerge as a new gene locus.
Book Synopsis The Symbolic Species: The Co-evolution of Language and the Brain by : Terrence W. Deacon
Download or read book The Symbolic Species: The Co-evolution of Language and the Brain written by Terrence W. Deacon and published by W. W. Norton & Company. This book was released on 1998-04-17 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A work of enormous breadth, likely to pleasantly surprise both general readers and experts."—New York Times Book Review This revolutionary book provides fresh answers to long-standing questions of human origins and consciousness. Drawing on his breakthrough research in comparative neuroscience, Terrence Deacon offers a wealth of insights into the significance of symbolic thinking: from the co-evolutionary exchange between language and brains over two million years of hominid evolution to the ethical repercussions that followed man's newfound access to other people's thoughts and emotions. Informing these insights is a new understanding of how Darwinian processes underlie the brain's development and function as well as its evolution. In contrast to much contemporary neuroscience that treats the brain as no more or less than a computer, Deacon provides a new clarity of vision into the mechanism of mind. It injects a renewed sense of adventure into the experience of being human.
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 Mobile DNA written by Douglas E. Berg and published by Amer Society for Microbiology. This book was released on 1989-01 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt: Documents the remarkable mobility of DNA in procaryotic and eucaryotic genomes: the ability of various DNA segments to move to new sites, to invert, and to undergo deletion or amplification, generally without the extensive DNA sequence homology needed for classical recombination. Seventy contributors explore the mechanisms of these rearrangements, how they are regulated, their biological consequences, and their potential use as research tools. For students and researchers of molecular genetics. Annotation copyrighted by Book News, Inc., Portland, OR
Book Synopsis ARF Family GTPases by : Richard A. Kahn
Download or read book ARF Family GTPases written by Richard A. Kahn and published by Springer Science & Business Media. This book was released on 2004-02-29 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the first time experts in the area of signalling research with a focus on the ARF family have contributed to the production of a title devoted to ARF biology. A comprehensive phylogenetic analysis of the ARF family, tables of the ARF GEFs and ARF GAPs, and more than a dozen chapters describing them in detail are provided. The impact of the ARF proteins on widely diverse aspects of cell biology and cell signalling can be clearly seen from the activities described; including membrane traffic, lipid metabolism, receptor desensitization, mouse development, microtubule dynamics, and bacterial pathogenesis. Anyone interested in understanding the complexities of cell signalling and the integration of signalling networks will benefit from this volume.
Download or read book Evolution written by James Alan Shapiro and published by Pearson Education. This book was released on 2011 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book proposes an important new paradigm for understanding biological evolution. Shapiro demonstrates why traditional views of evolution are inadequate to explain the latest evidence, and presents an alternative. His information- and systems-based approach integrates advances in symbiogenesis, epigenetics, and saltationism, and points toward an emerging synthesis of physical, information, and biological sciences.
Book Synopsis Molecular Evolution by : Roderick D.M. Page
Download or read book Molecular Evolution written by Roderick D.M. Page and published by John Wiley & Sons. This book was released on 2009-07-14 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of evolution at the molecular level has given the subject of evolutionary biology a new significance. Phylogenetic 'trees' of gene sequences are a powerful tool for recovering evolutionary relationships among species, and can be used to answer a broad range of evolutionary and ecological questions. They are also beginning to permeate the medical sciences. In this book, the authors approach the study of molecular evolution with the phylogenetic tree as a central metaphor. This will equip students and professionals with the ability to see both the evolutionary relevance of molecular data, and the significance evolutionary theory has for molecular studies. The book is accessible yet sufficiently detailed and explicit so that the student can learn the mechanics of the procedures discussed. The book is intended for senior undergraduate and graduate students taking courses in molecular evolution/phylogenetic reconstruction. It will also be a useful supplement for students taking wider courses in evolution, as well as a valuable resource for professionals. First student textbook of phylogenetic reconstruction which uses the tree as a central metaphor of evolution. Chapter summaries and annotated suggestions for further reading. Worked examples facilitate understanding of some of the more complex issues. Emphasis on clarity and accessibility.
Book Synopsis Evolution and Impact of Transposable Elements by : Pierre Capy
Download or read book Evolution and Impact of Transposable Elements written by Pierre Capy and published by Springer. This book was released on 2012-10-12 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last 50 years, the perception oftransposable elements (TEs) has changed considerably from selfish DNA to sequences that may contribute significantly to genome function and evolution. The recent increased interest in TEs is based on the realization that they are a major genetic component (at least 10--20%) of all organisms and a major contributor to the mutation process. It is currently estimated that 70--80% of spontaneous mutations are the result of TE-mediated insertions, deletions, or chromosomal rearrangements. Thus, it seems at least plausible that TEs may playa significant role in the adaptation and evolution of natural populations and species. The ubiquity of TEs suggests that they are an old component of genomes which have been vertically transmitted through generations over evolutionary time. However, detailed analyses carried out over the last 20 years have revealed several unusual features of TE evolution: (i) TEs can be horizontally transferred between species; (ii) TE evolutionary rates can be dramatically increased by specific inactivation processes, such as the RIP (Repeat Induced Point mutation) mechanism in fungi; (iii) TEs can influence the regulation of other TEs by insertion or deletion; (iv) different classes of TEs in even distantly related species can be remarkably similar in both structure and function.
Book Synopsis Mitochondria and Anaerobic Energy Metabolism in Eukaryotes by : William F. Martin
Download or read book Mitochondria and Anaerobic Energy Metabolism in Eukaryotes written by William F. Martin and published by Walter de Gruyter GmbH & Co KG. This book was released on 2020-12-07 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mitochondria are sometimes called the powerhouses of eukaryotic cells, because mitochondria are the site of ATP synthesis in the cell. ATP is the universal energy currency, it provides the power that runs all other life processes. Humans need oxygen to survive because of ATP synthesis in mitochondria. The sugars from our diet are converted to carbon dioxide in mitochondria in a process that requires oxygen. Just like a fire needs oxygen to burn, our mitochondria need oxygen to make ATP. From textbooks and popular literature one can easily get the impression that all mitochondria require oxygen. But that is not the case. There are many groups of organismsm known that make ATP in mitochondria without the help of oxygen. They have preserved biochemical relicts from the early evolution of eukaryotic cells, which took place during times in Earth history when there was hardly any oxygen avaiable, certainly not enough to breathe. How the anaerobic forms of mitochondria work, in which organisms they occur, and how the eukaryotic anaerobes that possess them fit into the larger picture of rising atmospheric oxygen during Earth history are the topic of this book.
Book Synopsis Origin of Mitochondria and Hydrogenosomes by : William F. Martin
Download or read book Origin of Mitochondria and Hydrogenosomes written by William F. Martin and published by Springer Science & Business Media. This book was released on 2007-01-26 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: The evolutionary origins of hydrogenosomes have been the subject of considerable debate. This volume closes the gap between the endosymbiotic theory for the origin of organelles and their incorporation into evolutionary theory. It reveals that identifying the genetic contribution to eukaryotes of the mitochondrial endosymbiosis, and revealing the functions of its descendent organelles, are key to understanding eukaryotic biology and evolution.
Book Synopsis Endonuclease-independent LINE-1 Retrotransposition by : Tammy A. Morrish
Download or read book Endonuclease-independent LINE-1 Retrotransposition written by Tammy A. Morrish and published by . This book was released on 2005 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Logic of Chance by : Eugene V. Koonin
Download or read book The Logic of Chance written by Eugene V. Koonin and published by FT Press. This book was released on 2011-06-23 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Logic of Chance offers a reappraisal and a new synthesis of theories, concepts, and hypotheses on the key aspects of the evolution of life on earth in light of comparative genomics and systems biology. The author presents many specific examples from systems and comparative genomic analysis to begin to build a new, much more detailed, complex, and realistic picture of evolution. The book examines a broad range of topics in evolutionary biology including the inadequacy of natural selection and adaptation as the only or even the main mode of evolution; the key role of horizontal gene transfer in evolution and the consequent overhaul of the Tree of Life concept; the central, underappreciated evolutionary importance of viruses; the origin of eukaryotes as a result of endosymbiosis; the concomitant origin of cells and viruses on the primordial earth; universal dependences between genomic and molecular-phenomic variables; and the evolving landscape of constraints that shape the evolution of genomes and molecular phenomes. "Koonin's account of viral and pre-eukaryotic evolution is undoubtedly up-to-date. His "mega views" of evolution (given what was said above) and his cosmological musings, on the other hand, are interesting reading." Summing Up: Recommended Reprinted with permission from CHOICE, copyright by the American Library Association.
Book Synopsis Transposable Elements and Evolution by : J. F. McDonald
Download or read book Transposable Elements and Evolution written by J. F. McDonald and published by Springer. This book was released on 1993-09-30 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the summer of 1992 a distinguished group of molecular, population and evolutionary geneticists assembled on the campus of the University of Georgia in Athens, USA to discuss the relevance of their research to the role played by transposable elements (TEs) in evolution. The meeting consisted of a series of informal discussions of issues brought up in papers written by the participants and distributed among them prior to the meeting. These papers and the transcripts of the ensuing discussions are presented in this volume.
