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Author : David R. Sultemeier
Publisher :
ISBN 13 :
Total Pages : 374 pages
Book Rating : 4.:/5 (173 download)
Download or read book Xenopus Comparative Genomics written by David R. Sultemeier and published by . This book was released on 2007 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Abraham Fainsod
Publisher : CRC Press
ISBN 13 : 1000529819
Total Pages : 768 pages
Book Rating : 4.0/5 (5 download)
Download or read book Xenopus written by Abraham Fainsod and published by CRC Press. This book was released on 2022-04-19 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the amphibian, Xenopus, one of the most commonly used model animals in the biological sciences. Over the past 50 years, the use of Xenopus has made possible many fundamental contributions to our knowledge in cell biology, developmental biology, molecular biology, and neurobiology. In recent years, with the completion of the genome sequence of the main two species and the application of genome editing techniques, Xenopus has emerged as a powerful system to study fundamental disease mechanisms and test treatment possibilities. Xenopus has proven an essential vertebrate model system for understanding fundamental cell and developmental biological mechanisms, for applying fundamental knowledge to pathological processes, for deciphering the function of human disease genes, and for understanding genome evolution. Key Features Provides historical context of the contributions of the model system Includes contributions from an international team of leading scholars Presents topics spanning cell biology, developmental biology, genomics, and disease model Describes recent experimental advances Incorporates richly illustrated diagrams and color images Related Titles Green, S. L. The Laboratory Xenopus sp. (ISBN 978-1-4200-9109-0) Faber, J. & P. D. Nieuwkoop. Normal Table of Xenopus laevis (Daudin): A Systematical & Chronological Survey of the Development from the Fertilized Egg till the End of Metamorphosis (ISBN 978-0-8153-1896-5) Jarret, R. L. & K. McCluskey. The Biological Resources of Model Organisms (ISBN 978-1-0320-9095-5) The Open Access version of this book, available at www.taylorfrancis.com, has been made available under a Creative Commons Attribution-Non Commercial-No Derivatives 4.0 license.
Author : STEFAN HOPPLER
Publisher : Humana Press
ISBN 13 : 9781493959532
Total Pages : 568 pages
Book Rating : 4.9/5 (595 download)
Download or read book Xenopus Protocols written by STEFAN HOPPLER and published by Humana Press. This book was released on 2016-08-23 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the 20th century Xenopus has flourished as an accessible experimental model system for studying vertebrate biology. The second edition of Xenopus Protocols:Post-Genomic Approaches expands upon the previous edition with novel approaches inspired by Xenopus tropicalis and the sequencing of its genome. Xenopus tropicalis genomics and tractable genetics combined with the unique experimental advantages of Xenopus laevis and their distinctive phylogenetic position make them unique model systems for vertebrate embryonic development in the 21st century. Written in the highly successful Methods in Molecular BiologyTM series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and key tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Xenopus Protocols: Post-Genomic Approaches, Second Edition provides a toolkit that will enable every laboratory to maximize the power of this extraordinary experimental system in the post-genomic age.
Author : Adam M Session
Publisher :
ISBN 13 :
Total Pages : 97 pages
Book Rating : 4.:/5 (957 download)
Download or read book Genomic Analysis of the Allotetraploid Frog, Xenopus Laevis written by Adam M Session and published by . This book was released on 2015 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: Duplication has long been recognized as an evolutionary source of novelty. The relaxation of purifying selection following duplication allows for normally deleterious mutations to persist long enough to give rise to novel phenotypes. Whole-genome duplications (WGDs) are a specific type of duplication, in which a species suddenly finds itself with two copies of all of its genomic loci. While the fate of most of the duplicated loci is to be lost, those that persist are thought to underlie the innovations seen in groups with a history of polyploidy, such as flowering plants, yeast, Paramecium, and vertebrates. These ancient events give us an idea of how WGDs can drive the radiation of large and diverse phyla, but do not give us any information on the genomic response immediately following polyploidy. This thesis provides insights into the origins of polyploidy and its effects on genome dynamics. There are two models for the mechanism of polyploidy: autopolyploidy and allopolyploidy. Autopolyploids are formed by doubling the somatic chromosomes in the zygote or early embryo. Allopolyploids are formed by the hybridization of two related, but genetically distinct, species, followed by chromosome doubling. If there are no extant diploid relatives, it can be difficult to distinguish between these two models. One feature of allopolyploids is the lack of recombination between their homeologous chromosomes. The end result is that any markers that were unique to each species while apart, such as transposable element subfamilies, will be asymmetrically distributed on the progenitor chromosomes in an organism that recently underwent a WGD. Xenopus laevis is an important vertebrate model in developmental and cell biology that has experienced a recent WGD (~40 million years ago [MYA], based on cDNA alignments (Hellsten, 2007). Its diploid cousin Xenopus tropicalis has become a popular genetic model frog. Comparative analysis of these two frog genomes gives us an excellent opportunity to study genome dynamics following whole genome duplication. The discovery of asymmetrically distributed transposon subfamilies supports the model that cross-species hybridization through allotetraploidy is the mechanism underlying the polyploid Xenopus radiation. Thus, the sub-genome sequence divergence of 40 MYA dates the divergence of the progenitor species, not the hybridization event. The asymmetric distribution of these elements between homeologous sequences allows us to assign chromosomes to progenitor species, named "A" and "B", making X. laevis a unique system to study sub-genome-specific evolution. The wealth of transcriptome and epigenetic data available for Xenopus allows me to assay how these genomic changes affect gene expression as well as gene retention. The combination of these resources with genomic data gives me the resolution needed to date the hybridization both by studying the decay of unitary pseudogenes and by comparative analysis of the transposable elements discussed above. The sub-genome from progenitor species "A" has more assembled length, longer chromosomes, a higher rate of gene retention, and higher average expression in the adult frog. The B sub-genome has higher synonymous and nonsynonymous mutation rates. The chromosomes orthologous to X. tropicalis 9 and 10 are fused in both sub-genomes of X. laevis, forming homeologous chromosomes 15 and 18, and deviate from the A/B trends discussed above. The regions of these X. laevis chromosomes orthologous to X. tropicalis chromosome 10 have a lower density of diagnostic repeats, no sub-genome bias in gene retention, and have a higher silent substitution rate. This divergence from the rest of the genome is not shared by the regions orthologous to X. tropicalis 9. I hypothesize that the short length of X. tropicalis 10 plays a role in these deviations due to a higher rate of gene conversion on shorter chromosomes.
Author : James R. Brown
Publisher : CRC Press
ISBN 13 : 1420008870
Total Pages : 409 pages
Book Rating : 4.4/5 (2 download)
Download or read book Comparative Genomics written by James R. Brown and published by CRC Press. This book was released on 2007-12-03 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: Through comparative analysis, the genomes of a number of species are providing a deeper understanding of the human genome. This is highly useful in drug research, especially in the treatment of otherwise intractable conditions. Compiling first-hand descriptions of the pioneering achievements of prominent researchers, this text focuses on revolutionary advances in DNA-sequencing technology, new approaches to the organization and analysis of large phylogenetic data sets, new perspectives on evolution, and the development of novel antimicrobial drugs. This seminal volume demonstrates both the means and the fruits of cooperation across a number of fields, and in doing so lays the groundwork for continued progress.
Author : Susumu Ohno
Publisher : Springer Science & Business Media
ISBN 13 : 364286659X
Total Pages : 171 pages
Book Rating : 4.6/5 (428 download)
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.
Author : Hazel L. Sive
Publisher : CSHL Press
ISBN 13 : 9780879695040
Total Pages : 370 pages
Book Rating : 4.6/5 (95 download)
Download or read book Early Development of Xenopus Laevis written by Hazel L. Sive and published by CSHL Press. This book was released on 2000 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amphibian embryos are supremely valuable in studies of early vertebrate development because they are large, handle easily, and can be obtained at many interesting stages. And of all the amphibians available for study, the most valuable is Xenopus laevis,which is easy to keep and ovulates at any time of year in response to simple hormone injections. Xenopusembryos have been studied for years but this is a particularly exciting time for the field. Techniques have become available very recently that permit a previously impossible degree of manipulation of gene expression in intact embryos, as well as the ability to visualize the results of such manipulation. As a result, a sophisticated new understanding of Xenopusdevelopment has emerged, which ensures the species’ continued prominent position among the organisms favored for biological investigation. This manual contains a comprehensive collection of protocols for the study of early development in Xenopusembryos. It is written by several of the field’s most prominent investigators in the light of the experience they gained as instructors in an intensive laboratory course taught at Cold Spring Harbor Laboratory since 1991. As a result it contains pointers, hints, and other technical knowledge not readily available elsewhere. This volume is essential reading for all investigators interested in the developmental and cell biology of Xenopusand vertebrates generally. Many of the techniques described here are illustrated in an accompanying set of videotapeswhich are cross-referenced to the appropriate section of the manual.
Author : Society for Developmental Biology. Symposium
Publisher : New York : A.R. Liss
ISBN 13 : 9780845115046
Total Pages : 188 pages
Book Rating : 4.1/5 (15 download)
Download or read book Molecular Developmental Biology written by Society for Developmental Biology. Symposium and published by New York : A.R. Liss. This book was released on 1986 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Nicholas H. Bergman
Publisher : Springer Science & Business Media
ISBN 13 : 1934115371
Total Pages : 436 pages
Book Rating : 4.9/5 (341 download)
Download or read book Comparative Genomics written by Nicholas H. Bergman and published by Springer Science & Business Media. This book was released on 2007-11-29 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a collection of robust protocols for molecular biologists studying comparative genomics. Given the tremendous increase in available biosequence data over the past ten years, this volume is timely, comprehensive, and novel. The volume is intended for molecular biologists, biochemists and geneticists.
Author : Melody Clark
Publisher : Springer Science & Business Media
ISBN 13 : 1461546575
Total Pages : 248 pages
Book Rating : 4.4/5 (615 download)
Download or read book Comparative Genomics written by Melody Clark and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the advent of the Human Genome Project, an increasing number of disease-causing genes have been discovered and, in some cases, genetic tests developed. However, this is only the first step. The second, much larger phase is the analysis of the total sequence. What does the rest of the DNA do? The answer to this question will be determined by computer prediction, expression profiling, and comparative genome analysis. Comparative Genomics covers such topics as identifying novel genes, determining gene function, control sequences, and developmental switches. The book aims to demonstrate how different approaches taken with model organisms, such as mutation studies, expression profiling of cDNAs, in situ localization of message and comparative genome analysis (both at the gene and nucleotide level) will aid in our understanding of the results coming out of the Human Genome Project and contribute significantly to our understanding of how genes function.
Author : Cecilia Saccone
Publisher : John Wiley & Sons
ISBN 13 : 0471326410
Total Pages : 442 pages
Book Rating : 4.4/5 (713 download)
Download or read book Handbook of Comparative Genomics written by Cecilia Saccone and published by John Wiley & Sons. This book was released on 2005-03-11 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive reference covers the comparative methodologyinvolved in studying molecular evolution. Providing a practicalintroduction to the role of bioinformatics in comparative genomics,this publication further discusses the basic technology used ingenome sequencing projects and provides an overview of genomestorage databases currently in use. This timely and cutting-edge text also: Reviews the basic principles of genomics and gene expressionanalysis Discusses analytic methods in proteomics andtranscriptomics Includes a comprehensive list of Web resource
Author : Malgorzata Kloc
Publisher : John Wiley & Sons
ISBN 13 : 1118492811
Total Pages : 459 pages
Book Rating : 4.1/5 (184 download)
Download or read book Xenopus Development written by Malgorzata Kloc and published by John Wiley & Sons. This book was released on 2014-06-03 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: Frogs from the genus Xenopus have long been used as model organisms in basic and biomedical research. These frogs have helped unlock key fundamental developmental and cellular processes that have led to important scientific breakthroughs and have had practical application in embryology, cancer research and regenerative medicine. Xenopus Development is a vital resource on the biology and development of these key model organisms, and will be a great tool to researchers using these frogs in various disciplines of biological science. Xenopus Development is divided into four sections, the first three highlight key processes in Xenopus development from embryo to metamophosis. These sections focus on the cellular processes, organogenesis and embryo development. The final section highlights novel techniques and approaches being used in Xenopus research. Providing thorough and detailed coverage, Xenopus Development, will be a timely and welcome volume for those working in cell and molecular biology, genetics, developmental biology and biomedical research. Provides broad overview of the developmental biology of both Xenopus laevis and Xenopus tropicalis Explores cellular to systems development in key biomedical model organisms Timely synthesis of the field of Xenopus biology Highlights key biomedical and basic biological findings unlocked by Xenopus
Author : James J. Nordlund
Publisher : John Wiley & Sons
ISBN 13 : 140515733X
Total Pages : 1248 pages
Book Rating : 4.4/5 (51 download)
Download or read book The Pigmentary System written by James J. Nordlund and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 1248 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most comprehensive and integrated book on pigmentation The Pigmentary System, Second Edition, gathers into one convenient, all-inclusive volume a wealth of information about the science of pigmentation and all the common and rare clinical disorders that affect skin color. The two parts, physiology (science) and pathophysiology (clinical disorders), are complementary and annotated so that those reading one part can easily refer to relevant sections in the other. For the clinician interested in common or rare pigment disorders or the principles of teaching about such disorders, this book provides an immediate and complete resource on the biologic bases for these disorders. For the scientist studying the biology of melanocyte function, the book provides a list of disorders that are related to basic biological functions of melanocytes. New features of this Second Edition include: Completely new section on the basic science of pigmentation – explaining the integration of melanocyte functions with other epidermal cells and with various organ systems like the immune system New chapters on pigmentary disorders related to intestinal diseases, the malignant melanocyte, benign proliferations of melanocytes (nevi) and phototherapy with narrow band UV All clinical chapters include the latest genetic findings and advances in therapy More than 400 color images of virtually all clinical disorders The book is ideal for all dermatologists and especially those interested in disorders of pigmentation. It is of particular use for pediatric dermatologists and medical geneticists caring for patients with congenital and genetic pigmentary disorders. This authoritative volume will fill the gap for dermatology training programs that do not have local experts on pigmentation. Basic and cosmetic scientists studying pigmentation and melanocytes will find the science and clinical correlations very useful in showing human significance and relevance to the results of their studies.
Author : Xuhua Xia
Publisher : Springer Science & Business Media
ISBN 13 : 3642371469
Total Pages : 115 pages
Book Rating : 4.6/5 (423 download)
Download or read book Comparative Genomics written by Xuhua Xia and published by Springer Science & Business Media. This book was released on 2014-07-08 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an evolutionary conceptual framework for comparative genomics, with the ultimate objective of understanding the loss and gain of genes during evolution, the interactions among gene products, and the relationship between genotype, phenotype and the environment. The many examples in the book have been carefully chosen from primary research literature based on two criteria: their biological insight and their pedagogical merit. The phylogeny-based comparative methods, involving both continuous and discrete variables, often represent a stumbling block for many students entering the field of comparative genomics. They are numerically illustrated and explained in great detail. The book is intended for researchers new to the field, i.e., advanced undergraduate students, postgraduates and postdoctoral fellows, although professional researchers who are not in the area of comparative genomics will also find the book informative.
Author : D. Sankoff
Publisher : Springer Science & Business Media
ISBN 13 : 9780792365846
Total Pages : 586 pages
Book Rating : 4.3/5 (658 download)
Download or read book Comparative Genomics written by D. Sankoff and published by Springer Science & Business Media. This book was released on 2000-09-30 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive account of genomic rearrangement, focusing on the mechanisms of inversion, translocation, gene and genome duplication and gene transfer and on the patterns that result from them in comparative maps. Includes analyses of genomic sequences in organelles, prokaryotes and eukaryotes as well as comparative maps of the nuclear genomes in higher plants and animals. The book showcases a variety of algorithmic and statistical approaches to rearrangement and map data.
Author : Sonya Vengrova
Publisher : Humana
ISBN 13 : 9781493955916
Total Pages : 0 pages
Book Rating : 4.9/5 (559 download)
Download or read book DNA Replication written by Sonya Vengrova and published by Humana. This book was released on 2016-10-29 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Updated and revised, this thorough volume covers a range of methods focusing on systems, including mammalian, yeast, bacterial and archaeal. This second edition of DNA Replication: Methods and Protocols describes approaches to analyze whole genomes to single molecules, as well as both in vivo and in vitro experiments. As a volume in the highly successful Methods in Molecular Biology series, chapters contain introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible protocols and tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, DNA Replication: Methods and Protocols, Second Edition provides a collections of methods intended for newcomers to this research field and for established laboratories.
Author : Bruce Turner
Publisher : Springer Science & Business Media
ISBN 13 : 1468446525
Total Pages : 651 pages
Book Rating : 4.4/5 (684 download)
Download or read book Evolutionary Genetics of Fishes written by Bruce Turner and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 651 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is my hope that this collection of reviews can be profitably read by all who are interested in evolutionary biology. However, I would like to specifically target it for two disparate groups of biologists seldom men tioned in the same sentence, classical ichthyologists and molecular biologists. Since classical times, and perhaps even before, ichthyologists have stood in awe at the tremendous diversity of fishes. The bulk of effort in the field has always been directed toward understanding this diversity, i. e. , extracting from it a coherent picture of evolutionary processes and lineages. This effort has, in turn, always been overwhelmingly based upon morphological comparisons. The practical advantages of such compari sons, especially the ease with which morphological data can be had from preserved museum specimens, are manifold. But considered objectively (outside its context of "tradition"), morphological analysis alone is a poor tool for probing evolutionary processes or elucidating relationships. The concepts of "relationship" and of "evolution" are inherently genetic ones, and the genetic bases of morphological traits are seldom known in detail and frequently unknown entirely. Earlier in this century, several workers, notably Gordon, Kosswig, Schmidt, and, in his salad years, Carl Hubbs, pioneered the application of genetic techniques and modes of reasoning to ichthyology. While certain that most contemporary ichth yologists are familiar with this body of work, I am almost equally certain that few of them regard it as pertinent to their own efforts.
