[PDF] Gene Manipulation In Plant Improvement eBook

Author : National Research Council
Publisher : National Academies Press
Page : 254 pages
File Size : 49,75 MB
Release : 2004-07-08
Category : Science
ISBN : 0309166152

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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 : J. Perry Gustafson
Publisher : Springer Science & Business Media
Page : 667 pages
File Size : 12,11 MB
Release : 2012-12-06
Category : Science
ISBN : 1461324297

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The results obtained to date involving the use of in ~ methods to facilitate wide hybridization in plants are voluminous and impressive. The techniques of embryo culture, ovule culture, and in~ pollination and fertilization represent an extension of the normal sexual hybridization process. Successes recorded in obtaining hybrids stem largely from circumventing prezygotic or postzygotic hybridization barriers. Numerous recent successful hybridizations were possible because of the development of improved tissue and cell culture systems for crop plants and attention given to genotypes used in hybridization attempts. Interspecific and intergeneric hybridization utilizing the process of protoplast fusion will bypass the limits set by all sexual me'thods. In addition to combining complete genomes from two different species through protoplast fusion, this system affords unique opportunities for creating novel cytoplasmic combinations, transfer of individual chromosomes, transfer of cytoplasmic organelles, manipulation of male sterility, and for single gene transfer. Some caution must be noted with regard to the extent of hybridization possible between distantly related species. Although practically no limit exists to the physical fusion of protoplasts from widely divergent species, the restrictions imposed by somatic incompatibility have not been adequately addressed. Regeneration of plants from the protoplast or single heterokaryon level is still a major hurdle for many important crop species before somatic cell fusion can be exploited to produce interspecific and intergeneric hybrids. Identification and selection of hybrids is also a limitation to the efficient application of cell fusion methods.

Author : National Research Council
Publisher : National Academies Press
Page : 97 pages
File Size : 28,61 MB
Release : 1984-02-01
Category : Science
ISBN : 0309034345

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"The book...is, in fact, a short text on the many practical problems...associated with translating the explosion in basic biotechnological research into the next Green Revolution," explains Economic Botany. The book is "a concise and accurate narrative, that also manages to be interesting and personal...a splendid little book." Biotechnology states, "Because of the clarity with which it is written, this thin volume makes a major contribution to improving public understanding of genetic engineering's potential for enlarging the world's food supply...and can be profitably read by practically anyone interested in application of molecular biology to improvement of productivity in agriculture."

Author : J. Perry Gustafson
Publisher : Springer Science & Business Media
Page : 436 pages
File Size : 40,90 MB
Release : 2012-12-06
Category : Science
ISBN : 1468470477

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There are clearly many directions in which the further development of the GUS gene fusion system can progress. Some of these have been outlined above, but others can be imagined. There are no reasons to limit our conceptions of the use of GUS gene fusions to analysis and manipulation of single genes. We can envision numerous marked genes - perhaps with several new fusion systems - giving valuable information about gene interaction, or population structure. The study of plan- pathogen and plant symbiont interactions can progress rapidly with simple quantitative markers for genes and individuals. We can imagine ways of using gene fusions to report on crop physiology or other complex phenotypes, thereby enhancing the accuracy and speed of screening. Introduction of the biosynthetic pathway for glucuronide detoxification by expressing genes for the UDP-glucuronyl transferases in plants may result in novel mechanisms for plants to deal with xenobiotics such as insecticides or herbicides. Synthesis of substrates, which until now has been performed chemicall- resulting in expensive compounds - can be done biosynthetically. This should make the system not only the most powerful gene fusion system for agriculture, but also the most accessible.

Author : National Academies of Sciences, Engineering, and Medicine
Publisher : National Academies Press
Page : 607 pages
File Size : 19,15 MB
Release : 2017-01-28
Category : Science
ISBN : 0309437385

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Genetically engineered (GE) crops were first introduced commercially in the 1990s. After two decades of production, some groups and individuals remain critical of the technology based on their concerns about possible adverse effects on human health, the environment, and ethical considerations. At the same time, others are concerned that the technology is not reaching its potential to improve human health and the environment because of stringent regulations and reduced public funding to develop products offering more benefits to society. While the debate about these and other questions related to the genetic engineering techniques of the first 20 years goes on, emerging genetic-engineering technologies are adding new complexities to the conversation. Genetically Engineered Crops builds on previous related Academies reports published between 1987 and 2010 by undertaking a retrospective examination of the purported positive and adverse effects of GE crops and to anticipate what emerging genetic-engineering technologies hold for the future. This report indicates where there are uncertainties about the economic, agronomic, health, safety, or other impacts of GE crops and food, and makes recommendations to fill gaps in safety assessments, increase regulatory clarity, and improve innovations in and access to GE technology.

Author : G.B. Collins
Publisher : Springer Science & Business Media
Page : 607 pages
File Size : 35,19 MB
Release : 2012-12-06
Category : Science
ISBN : 940096207X

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The contributions of plant genetics to the production of higher yielding crops of superior quality are well documented. These successes have been realized through the application of plant breeding techniques to a diverse array of genetically controlled traits. Such highly effective breeding procedures will continue to be the primary method employed for the development of new crop cultivars; however, new techniques in cell and molecular biology will provide additional approaches for genetic modification. There has been considerable speculation recently concerning the potential impact of new techniques in cell and molecular biology on plant improvement. These genetic engineering techniques should offer unique opportunities to alter the genetic makeup of crops if applied to existing breeding procedures. Many questions must be answered in order to identify specific applications of these new technologies. This search for applications will require input from plant scientists working on various aspects of crop improvement. This volume is intended to assess the interrelationships between conventional plant breeding and genetic engineering.

Author : Rup Lal
Publisher : CRC Press
Page : 499 pages
File Size : 17,86 MB
Release : 2020-01-31
Category : Science
ISBN : 1351089137

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Genetic Engineering of Plants for Crop Improvement discusses current genetic engineering methods for plants and addresses the commercial opportunities for transgenic plants. Topics covered include Agrobacterium-mediated transformations, the use of electroporation, PEG-mediated transformation, microinjection, the microprojectile bombardment method, and the electrical discharge particle acceleration method. A concise account of the resistance of transgenic plants to insect attack, viral infection, and herbicides has also been provided. Possibilities for genetic manipulation for proteins that have superior nutritional properties are discussed, and a brief account of tests confirming the safety and commercial validity of transgenic plants is included. A valuable source of information for researchers and students in plant biotechnology, plant gene manipulation, molecular biology, and all areas of the life sciences.

Author : Adrian Slater
Publisher : OUP Oxford
Page : 401 pages
File Size : 36,25 MB
Release : 2008-03-27
Category : Science
ISBN : 0199282617

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Plant Biotechnology presents a balanced, objective exploration of the technology behind genetic manipulation, and its application to the growth and cultivation of plants. The book describes the techniques underpinning genetic manipulation and makes extensive use of case studies to illustrate how this influential tool is used in practice.

Author : David Ronald Murray
Publisher : UNSW Press
Page : 172 pages
File Size : 25,98 MB
Release : 2003
Category : Business & Economics
ISBN : 9780868404608

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How are genetically modified plants produced? Which breeding goals are worthwhile, and which are not? Can the escape of transferred genes be controlled? Why have the first transgenic plants been released without full appreciation of the consequences? How dangerous are bacterial proteins produced in plant foods? Is anyone monitoring the unexpected effects of gene transfer? Will genetically modified plants ever be acceptable to organic growers? These are some of the important questions canvassed in this book, written with the insight of an experienced Australian plant scientist and conservationist.

Author : Iram Siddique
Publisher : Springer Nature
Page : 175 pages
File Size : 37,63 MB
Release : 2020-10-12
Category : Science
ISBN : 9811577366

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Plant biotechnology has now become a key tool in improving crop productivity and enhancing commercial value of plant products. The book complies various methods of in vitro propagation and genetic manipulation of important aromatic and medicinal plants. It puts together latest techniques and innovations in the field of plant biotechnology such as effective protocols of genetic manipulation, isolation of secondary metabolites, use of somaclonal variation, stress management in plants. It also explores the role of various physiological and biochemical factors affecting the genetic stability of in-vitro cultured plants. These themes are of interest to both graduate and postgraduate students. Further this book will be useful for to researchers, academicians and industrialist to review latest progress and future prospects of these technologies.