Vertebrate Genomes

Vertebrate Genomes PDF Author: Jean-Nicolas Volff
Publisher: Karger Medical and Scientific Publishers
ISBN: 3318013765
Category : Medical
Languages : en
Pages : 225

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Book Description
The publication of the first draft of the human genome five years ago marked the start of a new era of vertebrate comparative genomics. Genome draft sequences for chimpanzee, mouse, rat, dog, chicken as well as for several fish species are now available for the reconstruction of the evolutionary history of vertebrate genomes over the last 450 million years. This volume of Genome Dynamics presents a timely update on the past, present and future of major vertebrate genome projects. In 16 chapters, renowned specialists provide informative reviews on the current status of mammalian, bird, amphibian and fish genomics. In addition, a chapter on urochordate genomes is included. The reader will also find a useful overview of resources available for each genome as well as a description of the medical and economical perspectives opened by the different projects. This book is recommended reading for biologists interested in genetics, genomics, evolution and zoology.

Vertebrate Genomes

Vertebrate Genomes PDF Author: Jean-Nicolas Volff
Publisher: Karger Medical and Scientific Publishers
ISBN: 3318013765
Category : Medical
Languages : en
Pages : 225

Get Book Here

Book Description
The publication of the first draft of the human genome five years ago marked the start of a new era of vertebrate comparative genomics. Genome draft sequences for chimpanzee, mouse, rat, dog, chicken as well as for several fish species are now available for the reconstruction of the evolutionary history of vertebrate genomes over the last 450 million years. This volume of Genome Dynamics presents a timely update on the past, present and future of major vertebrate genome projects. In 16 chapters, renowned specialists provide informative reviews on the current status of mammalian, bird, amphibian and fish genomics. In addition, a chapter on urochordate genomes is included. The reader will also find a useful overview of resources available for each genome as well as a description of the medical and economical perspectives opened by the different projects. This book is recommended reading for biologists interested in genetics, genomics, evolution and zoology.

Vertebrate Genomes

Vertebrate Genomes PDF Author: Jean-Nicolas Volff
Publisher: Karger Medical and Scientific Publishers
ISBN: 3805581513
Category : Science
Languages : en
Pages : 225

Get Book Here

Book Description
The publication of the first draft of the human genome five years ago marked the start of a new era of vertebrate comparative genomics. Genome draft sequences for chimpanzee, mouse, rat, dog, chicken as well as for several fish species are now available for the reconstruction of the evolutionary history of vertebrate genomes over the last 450 million years. This volume of Genome Dynamics presents a timely update on the past, present and future of major vertebrate genome projects. In 16 chapters, renowned specialists provide informative reviews on the current status of mammalian, bird, amphibian and fish genomics. In addition, a chapter on urochordate genomes is included. The reader will also find a useful overview of resources available for each genome as well as a description of the medical and economical perspectives opened by the different projects. This book is recommended reading for biologists interested in genetics, genomics, evolution and zoology.

Evolution by Gene Duplication

Evolution by Gene Duplication PDF Author: Susumu Ohno
Publisher: Springer Science & Business Media
ISBN: 364286659X
Category : Medical
Languages : en
Pages : 171

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Book Description
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.

Polyploidy and Genome Evolution

Polyploidy and Genome Evolution PDF Author: Pamela Soltis
Publisher: Springer Science & Business Media
ISBN: 3642314414
Category : Science
Languages : en
Pages : 416

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Book Description
Polyploidy – whole-genome duplication (WGD) – is a fundamental driver of biodiversity with significant consequences for genome structure, organization, and evolution. Once considered a speciation process common only in plants, polyploidy is now recognized to have played a major role in the structure, gene content, and evolution of most eukaryotic genomes. In fact, the diversity of eukaryotes seems closely tied to multiple WGDs. Polyploidy generates new genomic interactions – initially resulting in “genomic and transcriptomic shock” – that must be resolved in a new polyploid lineage. This process essentially acts as a “reset” button, resulting in genomic changes that may ultimately promote adaptive speciation. This book brings together for the first time the conceptual and theoretical underpinnings of polyploid genome evolution with syntheses of the patterns and processes of genome evolution in diverse polyploid groups. Because polyploidy is most common and best studied in plants, the book emphasizes plant models, but recent studies of vertebrates and fungi are providing fresh perspectives on factors that allow polyploid speciation and shape polyploid genomes. The emerging paradigm is that polyploidy – through alterations in genome structure and gene regulation – generates genetic and phenotypic novelty that manifests itself at the chromosomal, physiological, and organismal levels, with long-term ecological and evolutionary consequences.

Hemoglobin

Hemoglobin PDF Author: Jay F. Storz
Publisher:
ISBN: 0198810687
Category : Medical
Languages : en
Pages : 258

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Book Description
Provides a synthesis of our current understanding of hemoglobin (Hb) function and evolution, and illustrates how research on this protein has provided more general insights into mechanisms of protein evolution and biochemical adaptation.

Spatial Complexity, Informatics, and Wildlife Conservation

Spatial Complexity, Informatics, and Wildlife Conservation PDF Author: Samuel A. Cushman
Publisher: Springer Science & Business Media
ISBN: 4431877711
Category : Science
Languages : en
Pages : 449

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Book Description
As Earth faces the greatest mass extinction in 65 million years, the present is a moment of tremendous foment and emergence in ecological science. With leaps in advances in ecological research and the technical tools available, scientists face the critical task of challenging policymakers and the public to recognize the urgency of our global crisis. This book focuses directly on the interplay between theory, data, and analytical methodology in the rapidly evolving fields of animal ecology, conservation, and management. The mixture of topics of particular current relevance includes landscape ecology, remote sensing, spatial modeling, geostatistics, genomics, and ecological informatics. The greatest interest to the practicing scientist and graduate student will be the synthesis and integration of these topics to provide a composite view of the emerging field of spatial ecological informatics and its applications in research and management.

Chromosome Structure and Function

Chromosome Structure and Function PDF Author: Andreas Houben
Publisher: Springer My Copy UK
ISBN: 9783805592123
Category : Aufsatzsammlung
Languages : en
Pages : 0

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Book Description
Our understanding of the function and structure of chromosomes and their interrelationship has grown in recent years. The chapters in this issue describe the advances that have been made possible by combining microscope techniques with sophisticated biochemical and genetic approaches to unlock the secrets of chromosomes. The authors look at many aspects of chromosome biology, such as protein, DNA and RNA composition of chromosomes, defined chromosome structures, unusual chromosome structures and specialized chromosomes and microscope tools for chromosome analysis. 'Chromosome Structure and Function' will be an invaluable resource for undergraduate and postgraduate students in fields such as plant and animal sciences, genetics, and molecular biology. In fact, any student, teacher or researcher interested in chromosome biology will find this special issue indispensable.

Tears of the Cheetah

Tears of the Cheetah PDF Author: Dr. Stephen J. O'Brien
Publisher: St. Martin's Griffin
ISBN: 1250102316
Category : Science
Languages : en
Pages : 313

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Book Description
The history of life on Earth is dominated by extinction events so numerous that over 99.9% of the species ever to have existed are gone forever. If animals could talk, we would ask them to recall their own ancestries, in particular the secrets as to how they avoided almost inevitable annihilation in the face of daily assaults by predators, climactic cataclysms, deadly infections and innate diseases. In Tears of the Cheetah, medical geneticist and conservationist Stephen J. O'Brien narrates fast-moving science adventure stories that explore the mysteries of survival among the earth's most endangered and beloved wildlife. Here we uncover the secret histories of exotic species such as Indonesian orangutans, humpback whales, and the imperiled cheetah-the world's fastest animal which nonetheless cannot escape its own genetic weaknesses. Among these genetic detective stories we also discover how the Serengeti lions have lived with FIV (the feline version of HIV), where giant pandas really come from, how bold genetic action pulled the Florida panther from the edge of extinction, how the survivors of the medieval Black Death passed on a genetic gift to their descendents, and how mapping the genome of the domestic cat solved a murder case in Canada. With each riveting account of animal resilience and adaptation, a remarkable parallel in human medicine is drawn, adding yet another rationale for species conservation-mining their genomes for cures to our own fatal diseases. Tears of the Cheetah offers a fascinating glimpse of the insight gained when geneticists venutre into the wild.

Gene Sharing and Evolution

Gene Sharing and Evolution PDF Author: Joram Piatigorsky
Publisher: Harvard University Press
ISBN: 9780674023413
Category : Science
Languages : en
Pages : 434

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Book Description
In Gene Sharing and Evolution Piatigorsky explores the generality and implications of gene sharing throughout evolution and argues that most if not all proteins perform a variety of functions in the same and in different species, and that this is a fundamental necessity for evolution.

Across the Bridge

Across the Bridge PDF Author: Henry Gee
Publisher: University of Chicago Press
ISBN: 022640319X
Category : Science
Languages : en
Pages : 325

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Book Description
“Addresses an important topic for biologists and zoologists about vertebrates’ place in the ‘grand scheme’ . . . genuinely witty and charming . . . magnificent.” —Neil J. Gostling, University of Southampton Our understanding of vertebrate origins and the backbone of human history evolves with each new fossil find and DNA map. Many species have now had their genomes sequenced, and molecular techniques allow genetic inspection of even non-model organisms. But as longtime Nature editor Henry Gee argues in Across the Bridge, despite these giant strides and our deepening understanding of how vertebrates fit into the tree of life, the morphological chasm between vertebrates and invertebrates remains vast and enigmatic. As Gee shows, even as scientific advances have falsified a variety of theories linking these groups, the extant relatives of vertebrates are too few for effective genetic analysis. Moreover, the more we learn about the species that do remain—from sea-squirts to starfish—the clearer it becomes that they are too far evolved along their own courses to be of much use in reconstructing what the latest invertebrate ancestors of vertebrates looked like. Fossils present yet further problems of interpretation. Tracing both the fast-changing science that has helped illuminate the intricacies of vertebrate evolution as well as the limits of that science, Across the Bridge helps us to see how far the field has come in crossing the invertebrate-to-vertebrate divide—and how far we still have to go. “A beautiful ode to some of the least appreciated animals . . . guides the reader joyfully through deuterostomes—weaving disparate elements of embryology, paleontology, and morphology into an unprecedented and accessible narrative.” —Jakob Vinther, University of Bristol