Download or read book Polyploidy and Hybridization for Crop Improvement written by Annaliese S. Mason and published by CRC Press. This book was released on 2017-11-22 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many of our current agricultural crops are natural or agricultural hybrids (between two or more species), or polyploids (containing more than one genome or set of chromosomes). These include potato, oats, cotton, oilseed rape, wheat, strawberries, kiwifruit, banana, seedless watermelon, triticale and many others. Polyploidy and hybridization can also be used for crop improvement: for example, to introgress disease resistance from wild species into crops, to produce seedless fruits for human consumption, or even to create entirely new crop types. Some crop genera have hundreds of years of interspecific hybridization and ploidy manipulation behind them, while in other genera use of these evolutionary processes for crop improvement is still at the theoretical stage. This book brings together stories and examples by expert researchers and breeders working in diverse crop genera, and details how polyploidy and hybridization processes have shaped our current crops, how these processes have been utilized for crop improvement in the past, and how polyploidy and interspecific hybridization can be used for crop improvement in the future.
Download or read book Distant Hybridization of Crop Plants written by G. Kalloo and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wild taxa are invaluable sources of resistance to diseases, insects/ pests, nematodes, temperature extremes, salinity and alkalinity stresses, and also of nutritional quality; adaptation; genetic diversity and new species. Utilization of wild relatives of a crop depends largely upon its crossability relations with cultivated varieties. Sev eral wild species are not crossable with the commercial cultivars due to various isolation barriers. Furthermore, in a few cases, hybridiza tion is possible only in one direction and reciprocal crosses are not successful, thus depriving the utilization of desired cytoplasm of many species. However, techniques have been developed to over come many barriers and hybrid plants are produced. New crop species have been developed by overcoming the F 1 sterility and producing amphidiploids and such crops are commercially being grown in the field. The segregation pattern ofF 1 hybrids produced by distant hybridization in segregating generations are different from the intervarietal hybrids. In former cases, generally, unidirectional segregation takes place in early generations and accordingly, selec tion procedures are adopted. In most of the cases, backcross or modified backcross methods have been followed to utilize wild species, and thus numerous types of resistance and other economical attributes have been transferred in the recurrent parents. Protoplast fusion has been amply demonstrated in a number of cases where sexual hybridization was not possible and, as a result, hybrids have been produced.
Download or read book The Amaranth Genome written by Dinesh Adhikary and published by Springer Nature. This book was released on 2021-06-01 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the development of genetic resources in amaranths, with a major focus on genomics, reverse, and forward genetics tools and strategies that have been developed for crop improvement. Amaranth is an ancient crop native to the New World. Interest in amaranths is being renewed, due to their adaptability, stress tolerance, and nutritional value. There are about 65 species in the genus, including Amaranthus caudatus L., A. cruentus L., and A. hypochondriacus L., which are primarily grown as protein-rich grains or pseudocereals. The genus also includes major noxious weeds (e.g., A. palmeri). The amaranths are within the Caryophyllales order and thus many species (e.g., A. tricolor) produce red (betacyanin) or yellow (betaxanthin) betalain pigments, which are chemically distinct from the anthocyanins responsible for red pigmentation in other plants. A. hypochondriacus, which shows disomic inheritance (2n = 32; n= 466 Mb), has been sequenced and annotated with 23,059 protein-coding genes. Additional members of the genus are now also been sequenced including weedy amaranths, other grain amaranths, and their putative progenitors.
Download or read book Polyploidy written by Walter H. Lewis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyploidy as a dramatic mutational event in the process of evolution has wide implications in nature and for the generation of new and improved crops. The three day Conference on POLYPLOIDY: BIOLOGICAL RELEVANCE focused on three aspects of this natural phenomenon: the first emphasized the characteristics of polyploidy, the second described the occurrence of polyploidy among plants and animals, and the third considered past and future areas of both fundamental and pragmatic research that involve polyploidy. New information relative to origin, cytogenetics, ecology, physiology, biochemistry, and populational studies stress the need to reexamine current views on the origins of polyploidy and its significance among both plants and animals. There are major differences in the occurrence of polyploidy between. plant groups and it is proving a much more common event among bisexual vertebrates than heretofore considered possible. Crop development and improvement must utilize approaches based fundamentally on more natural systems; in fact future research should focus more on polyploidy as a natural phenomenon that needs study at all levels of endeavor from field-oriented populational aspects to sophisticated molecular analyses and genome manipulations. This volume provides a summary of current knowledge of polyploidy pertinent to botanists, zoologists, and agriculturists who are interested in the evolution o~natural systems and who are concerned with the contribution that crop improvement can make to human well-being. Walter H. Lewis St. Louis, Missouri October, 1979 v ACKNOWLEDGMENTS The Host Committee thanks all speakers and moderators for their generous contribution to the Conference and to this volume.
Download or read book Somatic Hybridization in Crop Improvement II written by Toshiyuki Nagata and published by Springer Science & Business Media. This book was released on 2001-07-17 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Somatic hybrids through the fusion of plant protoplasts have widened the genetic variability of cultivated plants. As "Somatic Hybridization in Crop Improvement I", published in 1994, this volume describes how this discipline can contribute to the improvement of crops. It comprises 24 chapters dealing with interspecific and intergeneric somatic hybridization and cybridization. It is divided into four sections: I. Cereals: Barley, rice, and wheat. II. Vegetables and Fruits: Arabidopsis, Asparagus, Brassica, chicory, Citrus, Cucumis, Diospyros, Ipomoea, and various Solanaceous species, e.g., tomato, potato, and eggplant. III. Medicinal and Aromatic Plants: Atropa, Dianthus, Nicotiana, and Senecio. IV. Legumes/Pasture Crops: Alfalfa. This book is tailored to the needs of advanced students, teachers and researchers in the fields of plant breeding, genetic engineering, and plant tissue culture.
Download or read book Hybridization of Crop Plants written by Henry Hultman Hadley and published by American Society of Agronomy. This book was released on 1980 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chromosome Structure and Aberrations written by Tariq Ahmad Bhat and published by Springer. This book was released on 2017-02-08 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a compilation of various chapters contributed by a group of leading researchers from different countries and covering up to date information based on published reports and personal experience of authors in the field of cytogenetics. Beginning with the introduction of chromosome, the subsequent chapters on organization of genetic material, karyotype evolution, structural and numerical variations in chromosomes, B-chromosomes and chromosomal aberrations provide an in-depth knowledge and easy understanding of the subject matter. A special feature of the book is the inclusion of a series of chapters on various types of chromosomal aberrations and their impact on breeding behaviour and crop improvement. The possible mechanism, their consequences and role in genetic analysis has been emphasized in these chapters. A few chapters have also been dedicated on various techniques routinely used in the laboratory by students and researchers. Each chapter ends with an extensive bibliography so that the students and researchers may find it relevant to consult more literature on the subject than a book of this size can offer. The book is intended to fulfill the needs of undergraduate and post graduate students of botany, zoology and agriculture besides, teachers and researchers engaged in the field of genetics, cytogenetics, and molecular genetics. In general the readers will find each chapter of the book informative and easy to understand.
Download or read book Plant Breeding and Cultivar Development written by D. P. Singh and published by Academic Press. This book was released on 2021-01-21 with total page 663 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant Breeding and Cultivar Development features an optimal balance between classical and modern tools and techniques related to plant breeding. Written for a global audience and based on the extensive international experience of the authors, the book features pertinent examples from major and minor world crops. Advanced data analytics (machine learning), phenomics and artificial intelligence are explored in the book's 28 chapters that cover classical and modern plant breeding. By presenting these advancements in specific detail, private and public sector breeding programs will learn about new, effective and efficient implementation. The insights are clear enough that non-plant breeding majoring students will find it useful to learn about the subject, while advanced level students and researchers and practitioners will find practical examples that help them implement their work. Bridges the gap between conventional breeding practices and state-of-the-art technologies Provides real-world case studies of a wide range of plant breeding techniques and practices Combines insights from genetics, genomics, breeding science, statistics, computer science and engineering for crop improvement and cultivar development
Download or read book PLANT BREEDING Classical to Modern written by P. M. Priyadarshan and published by Springer Nature. This book was released on 2019-11-09 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a detailed overview of both conventional and modern approaches to plant breeding. In 25 chapters, it explores various aspects of conventional and modern means of plant breeding, including: history, objective, activities, centres of origin, plant introduction, reproduction, incompatibility, sterility, biometrics, selection, hybridization, methods of breeding both self- and cross- pollinated crops, heterosis, synthetic varieties, induced mutations and polyploidy, distant hybridization, quality breeding, ideotype breeding, resistance breeding, breeding for stress resistance, G x E interactions, tissue culture, genetic engineering, molecular breeding, genomics, gene action and varietal release. The book’s content addresses the needs of students worldwide. Modern methods like molecular breeding and genomics are dealt with extensively so as to provide a firm foundation and equip readers to read further advanced books. Each chapter discusses the respective subject as comprehensively as possible, and includes a section on further reading at the end. Info-boxes highlight the latest advances, and care has been taken to include nearly all topics required under the curricula of MS programs. As such, the book provides a much-needed reference guide for MS students around the globe.
Download or read book Genetics and Genomics of Polyploid Plants written by Jun Yang and published by Frontiers Media SA. This book was released on 2019-10-15 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Principles of Plant Breeding written by Robert W. Allard and published by John Wiley & Sons. This book was released on 1999-05-10 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Die Pflanzenzucht enthält Elemente individueller und kultureller Selektion - ein Prozeß, den die langerwartete zweite Auflage hinsichtlich sowohl einzelner Pflanzen als auch kompletter Populationen unter die Lupe nimmt. Im Zuge der Aktualisierung des Stoffes wurden neue Themen aufgenommen: moderne Gewebekulturtechniken, molekularbiologische Verfahren, Aspekte der Wechselwirkung zwischen natürlicher und menschlicher Selektion und zwischen Genotyp und Umwelt sowie eine Reihe von Techniken zur Ertragssteigerung in ungünstigen Anbaugebieten. (05/99)
Download or read book History of Plant Breeding written by Rolf H. J. Schlegel and published by CRC Press. This book was released on 2017-12-15 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: While there has been great progress in the development of plant breeding over the last decade, the selection of suitable plants for human consumption began over 13,000 years ago. Since the Neolithic era, the cultivation of plants has progressed in Asia Minor, Asia, Europe, and ancient America, each specific to the locally wild plants as well as the ecological and social conditions. A handy reference for knowing our past, understanding the present, and creating the future, this book provides a comprehensive treatment of the development of crop improvement methods over the centuries. It features an extensive historical treatment of development, including influential individuals in the field, plant cultivation in various regions, techniques used in the Old World, and cropping in ancient America. The advances of scientific plant breeding in the twentieth century is extensively explored, including efficient selection methods, hybrid breeding, induced polyploidy, mutation research, biotechnology, and genetic manipulation. Finally, this book presents information on approaches to the sustainability of breeding and to cope with climatic changes as well as the growing world population.
Download or read book Plant Genomes written by Jean-Nicolas Volff and published by Karger Medical and Scientific Publishers. This book was released on 2008-01-01 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent major advances in the field of comparative genomics and cytogenomics of plants, particularly associated with the completion of ambitious genome projects, have uncovered astonishing facets of the architecture and evolutionary history of plant genomes. The aim of this book was to review these recent developments as well as their implications in our understanding of the mechanisms which drive plant diversity. New insights into the evolution of gene functions, gene families and genome size are presented, with particular emphasis on the evolutionary impact of polyploidization and transposable elements. Knowledge on the structure and evolution of plant sex chromosomes, centromeres and microRNAs is reviewed and updated. Taken together, the contributions by internationally recognized experts present a panoramic overview of the structural features and evolutionary dynamics of plant genomes.This volume of Genome Dynamics will provide researchers, teachers and students in the fields of biology and agronomy with a valuable source of current knowledge on plant genomes.
Download or read book Concise Encyclopedia of Crop Improvement written by Rolf Schlegel and published by CRC Press. This book was released on 2007-11-24 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: How were today’s complex approaches to improving crops developed? The quest for a steady food supply sparked plant breeding attempts over 12,000 years ago. The Concise Encyclopedia of Crop Improvement is a comprehensive resource explaining the development of crop improvement methods over the centuries. This extensive history of development is examined in detail, including influential individuals in the field, plant cultivation in Asia since the Neolithic time, techniques used in the Old World, and cropping in ancient America. The advance of scientific plant breeding in the twentieth century is extensively explored, including hybrid breeding, biotechnological improvement, and genetic manipulation. The Concise Encyclopedia of Crop Improvement focuses on the full range of social and scientific advances in crop development. This concise yet detailed overview discusses leaders in the field, theories, achievements, disputes, and institutions that were crucial in the evolution of crop improvement, breeding, and plant genetics. Individual chapters discuss crop improvement within a specific time frame or geographic area as well as providing separate sections describing specific types or advances of breeding or scientific method. Numerous helpful tables, figures, and photos are included for idea clarity and illustration, and include comprehensive references. Topics in the Concise Encyclopedia of Crop Improvement include: plant breeding development over the past 10,000 years Arabic agriculture Medieval and Renaissance agriculture in Europe Mendel’s laws—the beginning of genetic research breeding by selection pure lines and improvement of self-pollinated crops positive and negative mass selection backcross breeding synthetics mutation breeding induced mutation somaclonal variation by in vitro culture much, much more The Concise Encyclopedia of Crop Improvement is essential for governmental, public, and academic libraries. This superb reference is a perfect desktop resource for students, educators, researchers, seed producers, historians, and anyone interested in agronomy, plant breeding, genetics, biotechnology, or biology.
Download or read book Encyclopedia of Food and Agricultural Ethics written by David M. Kaplan and published by . This book was released on 2014-12-12 with total page 1939 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Encyclopedia offers a definitive source on issues pertaining to the full range of topics in the important new area of food and agricultural ethics. It includes summaries of historical approaches, current scholarship, social movements, and new trends from the standpoint of the ethical notions that have shaped them. It combines detailed analyses of specific topics such as the role of antibiotics in animal production, the Green Revolution, and alternative methods of organic farming, with longer entries that summarize general areas of scholarship and explore ways that they are related. Renewed debate, discussion and inquiry into food and agricultural topics have become a hallmark of the turn toward more sustainable policies and lifestyles in the 21st century. Attention has turned to the goals and ethical rationale behind production, distribution and consumption of food, as well as to non-food uses of cultivated biomass and the products of animal husbandry. These wide-ranging debates encompass questions in human nutrition, animal rights and the environmental impacts of aquaculture and agricultural production. Each of these and related topics is both technically complex and involves an – often implicit – ethical dimension. Other topics include methods for integrating ethics into scientific and technical research programs or development projects, the role of intensive agriculture and biotechnology in addressing persistent world hunger and the role of crops, forests and engineered organisms in making a transition to renewable, carbon-neutral sources of energy. The Encyclopedia of Food and Agricultural Ethics proves an indispensible reference point for future research and writing on topics in agriculture and food ethics for decades to come.
Download or read book Genome Engineering for Crop Improvement written by Bidyut Kumar Sarmah and published by Springer Nature. This book was released on 2021-04-18 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book serves the teachers, researchers and the students as a handy and concise reference as well as guidebook while designing and planning for use of the advanced technologies for crop improvement. The content of the book is designed to cover the latest genome engineering techniques for crop improvement. The conventional breeding has got its limitations such as non-availability of desired genes within the genepool. In many cases, breeding has been highly used and it has nearly reached its highest limit so far as the productivity and production of crops are concerned. However, with increasing need of food and decreasing resources, including water, land, labour, etc., to feed the growing population, the alternative available ways of increasing crop productivity need to be explored and exploited. Genome engineering has a wide scope that includes technologies such as genetic engineering and transgenesis, RNA technologies, CRISPR, cisgenics and subgenics for better productivity and more efficient biotic and abiotic stress management. Therefore, the book is planned to enlighten the readers with the advanced technologies with examples and case studies, whenever possible. Efforts will be made to emphasize on general efforts on various major food crops; however, it would also be made clear that such efforts could be taken as proofs of concepts and that this could be extrapolated keeping the demand in mind.
Download or read book Chromosome Manipulation for Plant Breeding Purposes written by Pilar Prieto and published by MDPI. This book was released on 2021-01-29 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ability to exploit the potential of wild relatives carrying beneficial traits is a major goal in breeding programs. However, it relies on the possibility of the chromosomes from the crop and wild species in interspecific crosses to recognize, associate, and undergo crossover formation during meiosis, the cellular process responsible for producing gametes with half the genetic content of their parent cells. Unfortunately, in most cases, a barrier exists preventing successful hybridization between the wild and crop chromosomes. Understanding the mechanisms controlling chromosome associations during meiosis are of great interest in plant breeding and will allow chromosome manipulation to introduce genetic variability from related species into a crop. In addition to interspecific hybrids, other materials, such as natural and synthetic polyploids and introgression lines derived from allopolyploids, among others, are powerful tools in the framework of plant breeding. For example, an extra pair of alien chromosomes in the full genome complement of a crop species has been frequently used as a first step to access genetic variation from the secondary gene pool in breeding programs. In addition, such introgression lines are also pivotal in the study of interspecific genetic interactions, in the chromosomal location of genetic markers, and in the study of chromosome structure and behavior in somatic and meiotic cells. Contained in this Special Issue are accounts of original research, including new tools to identify chromosome introgressions and the development and characterization of introgression lines and interspecific hybrids carrying desirable agronomic traits for plant breeding purposes. Also included are reviews about the chromosome engineering of tropical cash crops and the effect of chromosome structure on chromosome associations and recombination during meiosis to allow chromosome manipulation in the framework of plant breeding.
