Download or read book Induced Mutagenesis written by Christopher W. Lawrence and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concern is often expressed that our environment may include an increasingly large variety of mutagens, but the extent of the potential hazard they pose has yet to be fully evaluated. A variety of empirical procedures has been devised with which to estimate the mutagenic potency of suspect agents, and the relative merits of different tests are currently under debate. Although such tests are of great value, and are indeed indispensable, they are not, nevertheless, sufficient. In the long term, accurate estimation of hazard will also require a better understanding of the various mechanisms of mutagenesis, and in many instances these remain remarkably elusive. Our knowledge and appreciation of the problem has increased substantially over the last few years, but the precise way in which many mutagens cause mutations is not yet known. The aims of this conference were therefore two-fold. The first was to survey present information about mutagenic mechanisms, drawing together data from work with various experimental approaches and organisms, in order to discern the principles governing the action of different mutagens. The second was to examine the implications of such principles for the execution and evaluation of test procedures, and critically assess the research areas that need further attention in order to improve the interpretation of test results. Chris Lawrence v ACKNOWLEDGEMENT We gratefully acknowledge the support provided for this Conference by the U.,S. Department of Energy, The Foundation for Microbiology, Exxon Corporation and the University of Rochester.
Download or read book Induced Mutations in Plant Breeding written by W. Gottschalk and published by . This book was released on 1983-06-01 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Somaclonal Variation and Induced Mutations in Crop Improvement written by S.M. Jain and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 615 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic variability is an important parameter for plant breeders in any con ventional crop improvement programme. Very often the desired variation is un available in the right combination, or simply does not exist at all. However, plant breeders have successfully recombined the desired genes from cultivated crop gerrnplasm and related wild species by sexual hybridization, and have been able to develop new cultivars with desirable agronomie traits, such as high yield, disease, pest, and drought resistance. So far, conventional breeding methods have managed to feed the world's ever-growing population. Continued population growth, no further scope of expanding arable land, soil degradation, environ mental pollution and global warrning are causes of concern to plant biologists and planners. Plant breeders are under continuous pressure to improve and develop new cultivars for sustainable food production. However, it takes several years to develop a new cultivar. Therefore, they have to look for new technologies, which could be combined with conventional methods to create more genetic variability, and reduce the time in developing new cultivars, with early-maturity, and improved yield. The first report on induced mutation of a gene by HJ. Muller in 1927 was a major mi1estone in enhancing variation, and also indicated the potential applica tions of mutagenesis in plant improvement. Radiation sources, such as X-rays, gamma rays and fast neutrons, and chemical mutagens (e. g. , ethyl methane sulphonate) have been widely used to induce mutations.
Download or read book C Elegans II written by Donald L. Riddle and published by Firefly Books. This book was released on 1997 with total page 1252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Defines the current status of research in the genetics, anatomy, and development of the nematode C. elegans, providing a detailed molecular explanation of how development is regulated and how the nervous system specifies varied aspects of behavior. Contains sections on the genome, development, neural networks and behavior, and life history and evolution. Appendices offer genetic nomenclature, a list of laboratory strain and allele designations, skeleton genetic maps, a list of characterized genes, a table of neurotransmitter assignments for specific neurons, and information on codon usage. Includes bandw photos. For researchers in worm studies, as well as the wider community of researchers in cell and molecular biology. Annotation copyrighted by Book News, Inc., Portland, OR
Download or read book Biotechnologies for Plant Mutation Breeding written by Joanna Jankowicz-Cieslak and published by Springer. This book was released on 2016-12-08 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is open access under a CC BY-NC 2.5 license. This book offers 19 detailed protocols on the use of induced mutations in crop breeding and functional genomics studies, which cover topics including chemical and physical mutagenesis, phenotypic screening methods, traditional TILLING and TILLING by sequencing, doubled haploidy, targeted genome editing, and low-cost methods for the molecular characterization of mutant plants that are suitable for laboratories in developing countries. The collection of protocols equips users with the techniques they need in order to start a program on mutation breeding or functional genomics using both forward and reverse-genetic approaches. Methods are provided for seed and vegetatively propagated crops (e.g. banana, barley, cassava, jatropha, rice) and can be adapted for use in other species.
Download or read book Health Effects of Exposure to Low Levels of Ionizing Radiation written by National Research Council and published by National Academies. This book was released on 1990-02-01 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reevaluates the health risks of ionizing radiation in light of data that have become available since the 1980 report on this subject was published. The data include new, much more reliable dose estimates for the A-bomb survivors, the results of an additional 14 years of follow-up of the survivors for cancer mortality, recent results of follow-up studies of persons irradiated for medical purposes, and results of relevant experiments with laboratory animals and cultured cells. It analyzes the data in terms of risk estimates for specific organs in relation to dose and time after exposure, and compares radiation effects between Japanese and Western populations.
Download or read book Stress Induced Mutagenesis written by David Mittelman and published by Springer Science & Business Media. This book was released on 2013-03-12 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discovery of stress-induced mutagenesis has changed ideas about mutation and evolution, and revealed mutagenic programs that differ from standard spontaneous mutagenesis in rapidly proliferating cells. The stress-induced mutations occur during growth-limiting stress, and can include adaptive mutations that allow growth in the otherwise growth-limiting environment. The stress responses increase mutagenesis specifically when cells are maladapted to their environments, i.e. are stressed, potentially accelerating evolution then. The mutation mechanism also includes temporary suspension of post-synthesis mismatch repair, resembling mutagenesis characteristic of some cancers. Stress-induced mutation mechanisms may provide important models for genome instability underlying some cancers and genetic diseases, resistance to chemotherapeutic and antibiotic drugs, pathogenicity of microbes, and many other important evolutionary processes. This book covers pathways of stress-induced mutagenesis in all systems. The principle focus is mammalian systems, but much of what is known of these pathways comes from non-mammalian systems.
Download or read book Safety of Genetically Engineered Foods written by National Research Council and published by National Academies Press. This book was released on 2004-07-08 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Manual on MUTATION BREEDING THIRD EDITION written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-10-09 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper provides guidelines for new high-throughput screening methods – both phenotypic and genotypic – to enable the detection of rare mutant traits, and reviews techniques for increasing the efficiency of crop mutation breeding.
Download or read book Induced Mutation Breeding written by Subodh Kumar Datta and published by Springer Nature. This book was released on 2023-05-24 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is an excellent reference collection of the research conducted by different workers on induced mutagenesis, worldwide, for more than 80 years. One can get almost all mutation breeding references at one place. The book gives a coherent and concise account of all the important and relevant aspects related to induced mutagenesis with an emphasis on recent developments in the field of crop improvement. The references have been arranged crop wise and important topic wise which deal with not only classical mutation breeding but also spontaneous mutations, somaclonal variations, nanoparticles, and relevant modern aspects. The book highlights 22 chapters covering holistic information on almost all important components such as radiosensitivity, chromosomal and morphological abnormalities, detection of mutation, management of chimera, present status of mutation etc.) of Mutation Breeding. Chapters are very informative, and one can follow the references on crop and aspect basis since the start of mutation breeding work. This book is an excellent resource for researchers and students for understanding proper applications of induced mutations in crop improvement and biological research. It is of interest and useful to graduate and postgraduate students, horticulturists, floriculturists, agricultural scientists, and breeders related to crop improvement program.
Download or read book Plant Functional Genomics written by Erich Grotewold and published by Springer Science & Business Media. This book was released on 2008-02-03 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functional genomics is a young discipline whose origin can be traced back to the late 1980s and early 1990s, when molecular tools became available to determine the cellular functions of genes. Today, functional genomics is p- ceived as the analysis, often large-scale, that bridges the structure and organi- tion of genomes and the assessment of gene function. The completion in 2000 of the genome sequence of Arabidopsis thaliana has created a number of new and exciting challenges in plant functional genomics. The immediate task for the plant biology community is to establish the functions of the approximately 25,000 genes present in this model plant. One major issue that will remain even after this formidable task is c- pleted is establishing to what degree our understanding of the genome of one model organism, such as the dicot Arabidopsis, provides insight into the or- nization and function of genes in other plants. The genome sequence of rice, completed in 2002 as a result of the synergistic interaction of the private and public sectors, promises to significantly enrich our knowledge of the general organization of plant genomes. However, the tools available to investigate gene function in rice are lagging behind those offered by other model plant systems. Approaches available to investigate gene function become even more limited for plants other than the model systems of Arabidopsis, rice, and maize.
Download or read book Plant Cell Culture written by Michael R. Davey and published by John Wiley & Sons. This book was released on 2010-05-20 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ability to culture cells is fundamental for mass propagation and as a baseline for the genetic manipulation of plant nuclei and organelles. The introduction to Plant Cell Culture: Essential Methods provides a general background to plant cell culture, including basic principles, technologies and laboratory practices that underpin the more detailed techniques described in subsequent chapters. Whilst each chapter provides a background to the topic area and methodology, a crucial aspect is the provision of detailed protocols with emphasis on trouble shooting, describing common problems and detailed advice for their avoidance. Plant Cell Culture: Essential Methods provides the reader with a concise overview of these techniques, including micropropagation, mutagenesis, cryopreservation, genetic and plastid transformation and somatic cell technologies. This book will be an essential addition to any plant science laboratory's bookshelf. Highlights the best and most up-to-date techniques for working on plant cell culture Explains clearly and precisely how to carry out selected techniques in addition to background information on the various approaches Chapters are written by leading international authorities in the field and cover both well-known and new, tried and tested, methods for working in plant cell culture An essential laboratory manual for students and early-career researchers.
Download or read book Induced Plant Mutations in the Genomics Era written by Q. Y. Shu and published by . This book was released on 2009 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Mutation Breeding and Biotechnology written by Q. Y. Shu and published by CABI. This book was released on 2012 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: This book presents contemporary information on mutagenesis in plants and its applications in plant breeding and research. The topics are classified into sections focusing on the concepts, historical development and genetic basis of plant mutation breeding (chapters 1-6); mutagens and induced mutagenesis (chapters 7-13); mutation induction and mutant development (chapters 14-23); mutation breeding (chapters 24-34); or mutations in functional genomics (chapters 35-41). This book is an essential reference for those who are conducting research on mutagenesis as an approach to improving or modifying a trait, or achieving basic understanding of a pathway for a trait --.
Download or read book DNA Repair and Mutagenesis written by Errol C. Friedberg and published by American Society for Microbiology Press. This book was released on 2005-11-22 with total page 2587 pages. Available in PDF, EPUB and Kindle. Book excerpt: An essential resource for all scientists researching cellular responses to DNA damage. • Introduces important new material reflective of the major changes and developments that have occurred in the field over the last decade. • Discussed the field within a strong historical framework, and all aspects of biological responses to DNA damage are detailed. • Provides information on covering sources and consequences of DNA damage; correcting altered bases in DNA: DNA repair; DNA damage tolerance and mutagenesis; regulatory responses to DNA damage in eukaryotes; and disease states associated with defective biological responses to DNA damage.
Download or read book Induced Mutations in Plant Breeding written by W. Gottschalk and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mutation breeding has been introduced into modern plant breeding in the early 1940's. In spite of pessimistic predictions, the application of experimental mutagenesis has led to encouraging results demonstrating that mutation breeding is a well-functioning method in many crops. So far, more than 500 varieties, developed by means of induced mutations, have been officially released; others have been approved for registration. Many mutants with characters of agronomic interest cannot be utilized directly because of their unsatisfying yielding capacities, or of other negative traits which are partly due to the pleiotropic action of the mutant genes. Sometimes their negative selection value can be overcome by transferring them into the genomes of other varieties. According to experience available, the efficiency of mutant genes can conSiderably vary depending on the genotypic background in which they become effective. The interactions between mutant genes and genotypic back ground cannot be predicted. Therefore, mutants with valuable traits should be crossed with many varieties and strains in order to discern positive and negative interactions. In this way, genotypes can be selected in which the mutant gene is able to express its action without showing negative by-effects. This procedure has been used for about 10 years by combining the methods of mutation and crossbreeding. Mutation breeding is predominantly used in annual diploid and allo polyploid self-fertilizing crops, while it causes much more difficulties in cross-pollinating species.
Download or read book From DNA Photolesions to Mutations Skin Cancer and Cell Death written by Evelyne Sage and published by Royal Society of Chemistry. This book was released on 2005 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: As modern day society takes an increasing interest in outdoor activities, its exposure to sunlight has never been greater. As a consequence, countries throughout the world are experiencing a dramatic increase in the incidences of skin carcinomas and melanomas. From DNA photolesions to mutations, skin cancer and cell death provides an authoritative source of information for photobiologists interested in the series of genetic events that occur in the skin, and eventually lead to cancer. With contributions from eminent scientists in the field, this book includes the latest information on DNA photolesions and repair, as well as the key mechanisms of solar UV in skin cancer initiation and development. Significant information relating to UV-induced photolesions and mechanisms of skin tumour occurrence is also included. By providing the basic phenomena underlying the science and an overview of the biological events that take place when cells are exposed to solar UV radiation, From DNA photolesions to mutations, skin cancer and cell death is suitable to all researchers interested in the process of photocarcinogenesis.
