Download or read book Gene Flow Among Maize Landraces Impoved Maize Varieties and Teosinte written by J. Antonio Serratos and published by CIMMYT. This book was released on 1997 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigating Hybrid Maize Teosinte written by Jaganna Rawat and published by . This book was released on 2023-07-24 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maize (Zea mays) is one of the most significant cereal crops globally, serving as a staple food source for millions. However, its wild ancestor, teosinte (Zea spp.), remains a vital and intriguing component of maize's evolutionary history. Investigating the hybridization between maize and teosinte has proven crucial for understanding the crop's domestication, genetic diversity, and potential for future agricultural advancements. The domestication of maize from teosinte is considered one of the most pivotal events in human history. Early Mesoamerican farmers selectively bred teosinte, leading to the emergence of maize around 9,000 years ago. This process transformed simple grass into a highly productive cereal crop, fundamentally changing agriculture and food systems worldwide. Studying the genetic relationship between maize and teosinte offers profound insights into their shared ancestry and the genetic basis of their differences. Through modern molecular techniques, researchers have identified regions in their genomes that have undergone significant changes during domestication. Such investigations have facilitated the development of advanced breeding strategies to enhance maize productivity and resilience. Hybridization between maize and teosinte remains a focal point of research in plant biology. Understanding the mechanisms of interspecies gene flow and hybridization can have implications for crop improvement and genetic conservation. Moreover, exploring the ecological interactions between these species' sheds light on the potential for gene exchange, promoting genetic diversity and adaptation. Beyond its historical importance, teosinte continues to contribute to the development of modern maize varieties. Introducing teosinte genes into maize can confer desirable traits, such as disease resistance and drought tolerance. These hybridization efforts open avenues for producing climate-resilient crops, addressing the challenges posed by a changing environment and global food security. Moreover, investigating hybrid maize-teosinte systems can have broader implications for evolutionary biology and conservation. Understanding how these species interact and exchange genetic material informs the study of plant speciation, adaptation, and biodiversity conservation. In conclusion, investigating the hybridization between maize and teosinte is a multidisciplinary endeavor with significant implications for agriculture, genetics, and ecological sciences. The journey from teosinte to modern maize unveils the remarkable story of human ingenuity and the profound impact of domestication on civilization. As we continue to explore this vital connection, we gain insights that empower us to develop sustainable agriculture and ensure food security for future generations. Moreover, the work in this field exemplifies the beauty and complexity of nature's processes and encourages us to preserve and protect the genetic diversity of these invaluable plant species.
Download or read book Population Genetics of Traditionally Managed Maize written by Joost van Heerwaarden and published by . This book was released on 2007 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Races of Maize in Mexico written by Edwin John Wellhausen and published by . This book was released on 1952 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: History of maize classification. How races used in classification. Geographical distribution. Existing races of maize in Mexico.
Download or read book Genetic Diversity and Performance of Maize Varieties from Zimbabwe Zambia and Malawi written by Cosmos Magorokosho and published by . This book was released on 2006 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results from the six studies confirm the origin of maize in southern Africa and reveals that considerable genetic variation exists in the region which could be used to broaden the sources of diversity for maize improvement under the current agro-ecological conditions in southern Africa.
Download or read book Statistical Population Genomics written by Julien Y Dutheil and published by . This book was released on 2020-10-08 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access volume presents state-of-the-art inference methods in population genomics, focusing on data analysis based on rigorous statistical techniques. After introducing general concepts related to the biology of genomes and their evolution, the book covers state-of-the-art methods for the analysis of genomes in populations, including demography inference, population structure analysis and detection of selection, using both model-based inference and simulation procedures. Last but not least, it offers an overview of the current knowledge acquired by applying such methods to a large variety of eukaryotic organisms. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, pointers to the relevant literature, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, Statistical Population Genomics aims to promote and ensure successful applications of population genomic methods to an increasing number of model systems and biological questions. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.
Download or read book Maize written by Duccio Bonavia and published by Cambridge University Press. This book was released on 2013-05-13 with total page 605 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines one of the thorniest problems of ancient American archaeology: the origins and domestication of maize. Using a variety of scientific techniques, Duccio Bonavia explores the development of maize, its adaptation to varying climates and its fundamental role in ancient American cultures. An appendix (by Alexander Grobman) provides the first-ever comprehensive compilation of maize genetic data, correlating this data with the archaeological evidence presented throughout the book. This book provides a unique interpretation of questions of dating and evolution, supported by extensive data, following the spread of maize from South to North America and eventually to Europe and beyond.
Download or read book Where Our Food Comes From written by Gary Paul Nabhan and published by Island Press. This book was released on 2012-02-13 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: The future of our food depends on tiny seeds in orchards and fields the world over. In 1943, one of the first to recognize this fact, the great botanist Nikolay Vavilov, lay dying of starvation in a Soviet prison. But in the years before Stalin jailed him as a scapegoat for the country’s famines, Vavilov had traveled over five continents, collecting hundreds of thousands of seeds in an effort to outline the ancient centers of agricultural diversity and guard against widespread hunger. Now, another remarkable scientist—and vivid storyteller—has retraced his footsteps. In Where Our Food Comes From, Gary Paul Nabhan weaves together Vavilov’s extraordinary story with his own expeditions to Earth’s richest agricultural landscapes and the cultures that tend them. Retracing Vavilov’s path from Mexico and the Colombian Amazon to the glaciers of the Pamirs in Tajikistan, he draws a vibrant portrait of changes that have occurred since Vavilov’s time and why they matter. In his travels, Nabhan shows how climate change, free trade policies, genetic engineering, and loss of traditional knowledge are threatening our food supply. Through discussions with local farmers, visits to local outdoor markets, and comparison of his own observations in eleven countries to those recorded in Vavilov’s journals and photos, Nabhan reveals just how much diversity has already been lost. But he also shows what resilient farmers and scientists in many regions are doing to save the remaining living riches of our world. It is a cruel irony that Vavilov, a man who spent his life working to foster nutrition, ultimately died from lack of it. In telling his story, Where Our Food Comes From brings to life the intricate relationships among culture, politics, the land, and the future of the world’s food.
Download or read book Food Inc written by Peter Pringle and published by Simon and Schuster. This book was released on 2010-05-11 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: For most people, the global war over genetically modified foods is a distant and confusing one. The battles are conducted in the mystifying language of genetics. A handful of corporate "life science" giants, such as Monsanto, are pitted against a worldwide network of anticorporate ecowarriors like Greenpeace. And yet the possible benefits of biotech agriculture to our food supply are too vital to be left to either partisan. The companies claim to be leading a new agricultural revolution that will save the world with crops modified to survive frost, drought, pests, and plague. The greens warn that "playing God" with plant genes is dangerous. It could create new allergies, upset ecosystems, destroy biodiversity, and produce uncontrollable mutations. Worst of all, the antibiotech forces say, a single food conglomerate could end up telling us what to eat. In Food, Inc., acclaimed journalist Peter Pringle shows how both sides in this overheated conflict have made false promises, engaged in propaganda science, and indulged in fear-mongering. In this urgent dispatch, he suggests that a fertile partnership between consumers, corporations, scientists, and farmers could still allow the biotech harvest to reach its full potential in helping to overcome the problem of world hunger, providing nutritious food and keeping the environment healthy.
Download or read book Global Political Ecology written by Richard Peet and published by Routledge. This book was released on 2010-12-17 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world is caught in the mesh of a series of environmental crises. So far attempts at resolving the deep basis of these have been superficial and disorganized. Global Political Ecology links the political economy of global capitalism with the political ecology of a series of environmental disasters and failed attempts at environmental policies. This critical volume draws together contributions from twenty-five leading intellectuals in the field. It begins with an introductory chapter that introduces the readers to political ecology and summarizes the books main findings. The following seven sections cover topics on the political ecology of war and the disaster state; fuelling capitalism: energy scarcity and abundance; global governance of health, bodies, and genomics; the contradictions of global food; capital’s marginal product: effluents, waste, and garbage; water as a commodity, a human right, and power; the functions and dysfunctions of the global green economy; political ecology of the global climate, and carbon emissions. This book contains accounts of the main currents of thought in each area that bring the topics completely up-to-date. The individual chapters contain a theoretical introduction linking in with the main themes of political ecology, as well as empirical information and case material. Global Political Ecology serves as a valuable reference for students interested in political ecology, environmental justice, and geography.
Download or read book Seed Trade in Rural Markets written by Leslie Lipper and published by Earthscan. This book was released on 2010 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: First Published in 2009. Routledge is an imprint of Taylor & Francis, an informa company.
Download or read book Genetic Diversity and Erosion in Plants written by M. R. Ahuja and published by Springer. This book was released on 2015-11-06 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic erosion is the loss of genetic diversity within a species. It can happen very quickly, due to catastrophic events, or changes in land use leading to habitat loss. But it can also occur more gradually and remain unnoticed for a long time. One of the main causes of genetic erosion is the replacement of local varieties by modern varieties. Other causes include environmental degradation, urbanization, and land clearing through deforestation and brush fires. In order to conserve biodiversity in plants, it is important to targets three independent levels that include ecosystems, species and genes. Genetic diversity is important to a species’ fitness, long-term viability, and ability to adapt to changing environmental conditions. Chapters in this book are written by leading geneticists, molecular biologists and other specialists on relevant topics on genetic erosion and conservation genetic diversity in plants. This divisible set of two volumes deals with a broad spectrum of topics on genetic erosion, and approaches to biodiversity conservation in crop plants and trees. Volume 1 deals with indicators and prevention of genetic erosion, while volume 2 covers genetic diversity and erosion in a number of plants species. These two volumes will also be useful to botanists, biotechnologists, environmentalists, policy makers, conservationists, and NGOs working to manage genetic erosion and biodiversity.
Download or read book Biology Physiology and Molecular Biology of Weeds written by Mithila Jugulam and published by CRC Press. This book was released on 2017-07-12 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides comprehensive information on a wide range of topics from biology, physiology, genetics to the use of genomic tools in weed science. The book covers information at a more advanced level than the previously published books in weed science. It covers not only weed genetics and genomics research, but also weed management from an ecological perspective. Furthermore, the book also gives a broad coverage of novel mechanisms of weed resistance to herbicides. More importantly, it includes next generation sequencing techniques and bioinformatics of herbicide resistant genes in weeds.
Download or read book Dangerous Liaisons written by Norman C. Ellstrand and published by JHU Press. This book was released on 2005-04-13 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the advent of genetic engineering, "designer" crops might interbreed with natural populations. Could such romances lead to the evolution of "superweeds", as some have suggested? But haven't crops had sex with wild plants in the past? Has such gene swapping occurred without consequences? And if consequences have indeed occurred, what lessons can be gleaned for engineered crops? In Dangerous Liaisons? Norman Ellstrand examines these and other questions. He begins with basic information about the natural hybridization process. He then describes what we now know about hybridization between the world's most important crops—such as wheat, rice, maize, and soybeans—and their wild relatives. Such hybridization, Ellstrand explains, is not rare, and has occasionally had a substantial impact. In some cases, the result was problematic weeds. In others, crop genes have diluted natural diversity to the point that wild populations of certain rare species were absorbed into the gene pool of the more common crop, essentially bringing the wild species to the brink of extinction. Ellstrand concludes with a look to the future. Will engineered crops pose a greater threat than traditional crops? If so, can gene flow and hybridization be managed to control the escape of engineered genes? This book will appeal to academics, policy makers, students, and all with an interest in environmental issues.
Download or read book Seeds for the Future written by Jennifer A. Thomson and published by Cornell University Press. This book was released on 2007 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants have long been genetically modified through crossbreeding and other basic agricultural techniques to make crops more resilient, nutritious, and profitable. In recent decades, however, advances in genetic engineering--including the ability to blend genetic material from animals with that of plants--have allowed farmers to grow crops that resist insect pests, weeds, viruses, and drought; provide increased iron or beta carotene; deliver vaccines and antibodies; reduce common allergens and pollutants; and augment marketable qualities such as delayed ripening. The complicated scientific, environmental, legal, cultural, and ethical issues surrounding these crops are being hotly debated all over the world. In Seeds for the Future, an internationally respected molecular geneticist and food researcher, Jennifer A. Thomson, describes how these crops are developed, distributed, and regulated.
Download or read book Greening NAFTA written by David L. Markell and published by Stanford University Press. This book was released on 2003 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: A portrait of the CEC notes its establishment as the first international organization created to address "trade and the environment" issues, discussing such topics as the unprecedented resources and opportunities available within North America and what the agency can teach mainstream society about environmental protection and economic integration. (Politics & Government)
Download or read book Harmonisation of Regulatory Oversight in Biotechnology Safety Assessment of Transgenic Organisms Volume 1 OECD Consensus Documents written by OECD and published by OECD Publishing. This book was released on 2006-07-24 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: These OECD Biosafety Consensus Documents identify elements of scientific information used in the environmental safety and risk assessment of transgenic organisms which are common to OECD member countries.
