Homologous Recombination And Gene Silencing In Plants

Author : J. Paszkowski
Publisher : Springer Science & Business Media
Page : 389 pages
File Size : 40,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401110945

Get Book

Homologous Recombination and Gene Silencing in Plants by J. Paszkowski Pdf

Higher eukaryotes are characterized by the allocation of distinct functions to numerous types of differentiated cells. Whereas in animals the well-defined, protected cells of the germ line separate early, germ cells in plants differentiate from somatic cells only after many cycles of mitotic division. Therefore somatic mutations in plants can be transmitted via the germ cells to the progeny. There is thus a clear need for somatic tissues to maintain their genetic integrity in the face of environmental challenges, and two types of interactions have been shown to play important roles in the conservation as well as flexibility of plant genomes: homologous recombination of repeated sequences and silencing of multiplied genes. Sensitive methods have been developed that allow greater insights into the dynamics of the genome. This book summarizes current knowledge and working hypotheses about the frequencies and mechanisms of mitochondrial, plastid, nuclear and viral recombination and the inactivation of repeated genes in plants. Despite rapid developments in the field, it is often not possible to provide final answers. Thus, it is an additional task of this book to define the open questions and future challenges. The book is addressed to scientists working on plant biology and recombination, to newcomers in the field and to advanced biology students.

Author : T.R. Lindahl,S.C. West
Publisher : Springer
Page : 103 pages
File Size : 42,6 Mb
Release : 2011-10-06
Category : Medical
ISBN : 9401105383

Get Book

DNA Repair and Recombination by T.R. Lindahl,S.C. West Pdf

Genomic instability is a major threat to living organisms. To counteract the damaging effects posed by endogenous and environmental agents, such as chemicals or radiation, micro-organisms devote several percent of their genome to encode proteins that function in the repair and recombination of DNA. For many years, a relatively small group of scientists have carefully delineated the molecular mechanisms of these repair processes, using the simplest model systems available, namely Escherichia coli and Saccharomyces cerevisiae. These studies, which until recently had only moderate impact outside of the field, now provide the cornerstone for exciting new research into analogous processes in human cells. The reason for this is the revelation that the biochemical pathways for the accurate replication, repair and recombination of DNA have been conserved through evolution. New research shows that human cells use DNA repair mechanisms that are analogous to those found in bacteria to overcome the damaging effects of environmental mutagens and carcinogens. Of particular significance is the observation that certain cancers are caused by defects in DNA repair enzymes. For example, the human inherited non-polyposis colon cancer is now known to be caused by defects in the enzymes that repair DNA mismatches. Because much detailed information has been accumulated in studies of analogous mismatch repair proteins from bacteria, rapid progress can now be made.

Author : Bruce Alberts
Publisher : Unknown
Page : 0 pages
File Size : 51,6 Mb
Release : 2002
Category : Cytology
ISBN : 0815332181

Get Book

Molecular Biology of The Cell by Bruce Alberts Pdf

Author : National Research Council,Institute of Medicine,Board on Agriculture and Natural Resources,Food and Nutrition Board,Board on Life Sciences,Committee on Identifying and Assessing Unintended Effects of Genetically Engineered Foods on Human Health
Publisher : National Academies Press
Page : 254 pages
File Size : 52,6 Mb
Release : 2004-07-08
Category : Science
ISBN : 9780309166157

Get Book

Safety of Genetically Engineered Foods by National Research Council,Institute of Medicine,Board on Agriculture and Natural Resources,Food and Nutrition Board,Board on Life Sciences,Committee on Identifying and Assessing Unintended Effects of Genetically Engineered Foods on Human Health Pdf

Assists policymakers in evaluating the appropriate scientific methods for detecting unintended changes in food and assessing the potential for adverse health effects from genetically modified products. In this book, the committee recommended that greater scrutiny should be given to foods containing new compounds or unusual amounts of naturally occurring substances, regardless of the method used to create them. The book offers a framework to guide federal agencies in selecting the route of safety assessment. It identifies and recommends several pre- and post-market approaches to guide the assessment of unintended compositional changes that could result from genetically modified foods and research avenues to fill the knowledge gaps.

Author : Peter Meyer
Publisher : Springer Science & Business Media
Page : 237 pages
File Size : 43,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642791451

Get Book

Gene Silencing in Higher Plants and Related Phenomena in Other Eukaryotes by Peter Meyer Pdf

In recent years several different gene silencing phenomena have been discovered in plants. The book summarizes the most recent data on gene silencing phenomena such as trans-, inactivation, paramutation and co-suppression. Plant researchers will find this edition a valuable help in differentiating between a number of puzzling and partly contradictory gene silencing events. Those not familiar with plant molecular biology are introduced into the relevant methods and scientific models. In addition examples and models of gene silencing in flamentous fungi, Drosophila and mammalian systems are presented. By providing a comparative update on gene silencing effects in different eukaryotes, this book should stimulate communication among scientists working in diverse areas of eukaryotic gene regulation.

Author : Shri Mohan Jain,D.S. Brar
Publisher : Springer Science & Business Media
Page : 611 pages
File Size : 40,5 Mb
Release : 2013-10-14
Category : Science
ISBN : 9789401723565

Get Book

Molecular Techniques in Crop Improvement by Shri Mohan Jain,D.S. Brar Pdf

This book provides comprehensive information on the latest tools and techniques of molecular genetics and their applications in crop improvement. It thoroughly discusses advanced techniques used in molecular markers, QTL mapping, marker-assisted breeding, and molecular cytogenetics.

Author : Kwang W. Jeon
Publisher : Elsevier
Page : 289 pages
File Size : 55,9 Mb
Release : 2003-12-15
Category : Science
ISBN : 9780080495576

Get Book

International Review of Cytology by Kwang W. Jeon Pdf

The acclaimed International Review of Cytology series presents current advances and reviews in cell biology, both plant and animal. Articles address structure and control of gene expression, nucleocytoplasmic interactions, control of cell development and differentiation, and cell transformation and growth. Authored by some of the foremost scientists in the field, each volume provides up-to-date information and directions for future research. Contributors to this volume are Kiminobu Sugaya, Dario Leister, Anja Schneider, Bernd Reiss, Karl-Josef Dietz, and Jonathan J. Henry. The acclaimed International Review of Cytology series presents current advances and reviews in cell biology, both plant and animal. Articles address structure and control of gene expression, nucleocytoplasmic interactions, control of cell development and differentiation, and cell transformation and growth. Authored by some of the foremost scientists in the field, each volume provides up-to-date information and directions for future research. Contributors to this volume are Kiminobu Sugaya, Dario Leister, Anja Schneider, Bernd Reiss, Karl-Josef Dietz, and Jonathan J. Henry.

Author : Chuni L. Mandahar
Publisher : Springer Science & Business Media
Page : 304 pages
File Size : 52,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781461550631

Get Book

Molecular Biology of Plant Viruses by Chuni L. Mandahar Pdf

Two decades ago, recombinant DNA technology or genetic engineering ushered in a new era in the study of plant viruses. The major breakthrough came in the eighties, primarily due to the development of new methods for RNA reverse transcription and cDNA cloning, along with restriction enzyme mapping and rapid nucleotide sequencing. An information explosion in various molecular aspects of plant viruses was caused by these studies. Current research efforts investigate the study of viral genomes, genetic maps, genes and gene expression, gene products, and genetic basis of virus functions and biological properties. Molecular Biology of Plant Viruses analyzes, collates and reviews such published information. Additionally, it demonstrates the mechanisms of genetic variability; brings out the molecular basis of virus transport in plants and of virus transmission by vectors and of disease symptomatology; and discusses molecular biology of viroids and transgenic plants. It also treats the recently discovered genetic phenomenon of gene silencing and the gene-for-gene interactions between the hosts and plant viruses. Molecular Biology of Plant Viruses is an excellent reference, providing insight into the exciting research developments made in the field.

Author : Anonim
Publisher : Elsevier
Page : 565 pages
File Size : 43,8 Mb
Release : 2002-04-02
Category : Science
ISBN : 9780080490328

Get Book

Homology Effects by Anonim Pdf

Homology Effects offers contributions from an international panel of researchers whose aim has been both to introduce newcomers to the field of homology effects, and to bring colleagues up to date. Topic coverage includes dosage compensation, X-inactivation, imprinting, paramutation, homology-dependent gene silencing, transvection, pairing-sensitive silencing, nuclear organization of chromosomes, DNA repair, quelling, RIP, RNAi and antisense biology, homology effects in ciliates, prion biology, and a discourse on the evolution of gene duplications. Advances in Genetics presents an eclectic mix of articles of use to all human and molecular geneticists. They are written and edited by recognized leaders in the field and make this an essential series of books for anyone in the genetics field. Homology, the examination of similarity due to shared common ancestry, encompasses a fascinating class of phenomena in mammals, plants, insects, ciliates, nematodes, fungi, and bacteria. Homology effects concern processes that recognize homology at the level of DNA and/or RNA, as well as at the level of protein. Their collective history begins at the turn of the century and includes some of the most puzzling and extraordinary observations in biology. The volume covers phenomena that have often been considered unusual, exceptional to the rule, and "out of the ordinary" and, therefore, not for general study. However, it is now becoming clear that taken together, these phenomena represent a class of regulatory mechanisms that are widespread, as well as exceptionally powerful.

Author : Witold Filipowicz,Thomas Hohn
Publisher : Springer Science & Business Media
Page : 419 pages
File Size : 43,9 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400903531

Get Book

Post-Transcriptional Control of Gene Expression in Plants by Witold Filipowicz,Thomas Hohn Pdf

A recent volume of this series (Signals and Signal Transduction Pathways in Plants (K. Palme, ed.) Plant Molecular Biology 26, 1237-1679) described the relay races by which signals are transported in plants from the sites of stimuli to the gene expression machinery of the cell. Part of this machinery, the transcription apparatus, has been well studied in the last two decades, and many important mechanisms controlling gene expression at the transcriptional level have been elucidated. However, control of gene expression is by no means complete once the RNA has been produced. Important regulatory devices determine the maturation and usage of mRNA and the fate of its translation product. Post-transcriptional regulation is especially important for generating a fast response to environmental and intracellular signals. This book summarizes recent progress in the area of post-transcriptional regulation of gene expression in plants. 18 chapters of the book address problems of RNA processing and stability, regulation of translation, protein folding and degradation, as well as intracellular and cell-to-cell transport of proteins and nucleic acids. Several chapters are devoted to the processes taking place in plant organelles.

Author : Anonim
Publisher : Unknown
Page : 348 pages
File Size : 53,8 Mb
Release : 1997
Category : Forests and forestry
ISBN : MINN:31951D01562413D

Get Book

Micropropagation, Genetic Engineering, and Molecular Biology of Populus by Anonim Pdf

Thirty-four Populus biotechnology chapters, written by 85 authors, are comprised in 5 sections: 1) in vitro culture (micropropagation, somatic embryogenesis, protoplasts, somaclonal variation, and germplasm preservation); 2) transformation and foreign gene expression; 3) molecular biology (molecular/genetic characterization); 4) biotic and abiotic resistance (disease, insect, and pollution); and 5) biotechnological applications (wood properties, flowering, phytoremediation, breeding, commercialization, economics, and bioethics).

Author : Anonim
Publisher : Unknown
Page : 576 pages
File Size : 47,8 Mb
Release : 1997
Category : Forests and forestry
ISBN : UOM:39015046277037

Get Book

General Technical Report RM. by Anonim Pdf

Author : Alan R. Lindsey
Publisher : Routledge
Page : 304 pages
File Size : 44,5 Mb
Release : 2022-01-27
Category : Science
ISBN : 9781351407182

Get Book

Transgenic Plant Research by Alan R. Lindsey Pdf

This text is split into four main sections: gene transfer techniques; transgenic approaches to gene isolation; manipulation of plant development, biochemistry and physiology; and predictability of transgene expression.

Author : Sarad R. Parekh
Publisher : Springer Science & Business Media
Page : 374 pages
File Size : 46,6 Mb
Release : 2004-05-15
Category : Science
ISBN : 9781592598014

Get Book

The GMO Handbook by Sarad R. Parekh Pdf

A comprehensive and accessible survey of the best current accomplishments of GMO research in all their complexity and ramifications. The authors introduce the fundamentals of biotechnology as a scientific discipline, show how GMO research is conducted today, discuss the problems that have arisen from genetic technology and the tools needed to resolve them, and describes how GMO-derived technology may impact our lives in the future. On the technical side, the authors examine a wide range of current technologies employed for constructing GMOs, and describe approaches to novel research, appropriate protocols, and the process of constructing and screening a GMO. The discussion of plant and animal cells covers new strategies employed and the large-scale expression and purification of recombinant products in cultured cells. Social political, and legal issues are also discussed.

Author : Richard Winfield
Publisher : Routledge
Page : 157 pages
File Size : 42,8 Mb
Release : 2022-01-26
Category : Business & Economics
ISBN : 9781000543742

Get Book

The Just Economy by Richard Winfield Pdf

First Published in 1988, Richard Dien Winfield's The Just Economy investigates what the economy should be, undertaking a normative inquiry ignored by contemporary economists. Drawing upon Hegel's Philosophy of Right, Winfield's book shows how justice lies in self-determination, how the economy can realize social freedom, and how economic relations must be regulated to uphold family welfare, equal economic opportunity, and political autonomy. Exposing the pitfalls in past attempts to conceive economic justice, including those of ancient Greek philosophers, social contract thinkers, the classical political economists, and Marx, The Just Economy settles the controversy between capitalism, socialism, and communism. It is crucial reading for thinkers and citizens the world over.