Leveraging Evolution to Understand Genetic Load in Cassava (manihot Esculenta)

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (14 download)

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Book Synopsis Leveraging Evolution to Understand Genetic Load in Cassava (manihot Esculenta) by : Evan Long

Download or read book Leveraging Evolution to Understand Genetic Load in Cassava (manihot Esculenta) written by Evan Long and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cassava (Manihot esculenta) is a root crop that serves as an important caloric source for many tropical regions of the world. Cassava was domesticated 5k-10k years ago where it transitioned from being a perennial, outcrossing species to a crop grown as an annual or biannual and is propagated clonally through stem cuttings. Breeding efforts in cassava are hindered by high levels of inbreeding depression and limited sexual reproductive ability. Genetic load due to the accumulation of underlying deleterious mutations has been hypothesized as an underlying cause for these difficulties. In recent years genomic selection has been adopted as a strategy to accelerate genetic gain and quickly purge genetic load. Obtaining accurate and consistent genotype data across thousands of cassava clones is necessary to more effectively implement genomic selection strategies. Genomic selection uses genome-wide markers to predict plant performance to accelerate genetic gain, by reducing time and money to evaluate every cross. Genotype imputation, a method of obtaining genome-wide variants from limited sequence, has been hindered in cassava due to its high levels of heterozygosity. The first section of this project concerns the creation of a Practical Haplotype Graph (PHG) in cassava to improve genotype imputation in cassava, which in turn can enable more effective genomic selection strategies. Centuries of limited sexual recombination, selection cannot effectively purge recessive deleterious mutations, which may be responsible for observed genetic load in cassava. This work aims to understand these deleterious mutations and evaluate the prospect of incorporating them into improvement of cassava. With accurate genotypes and knowledge of deleterious impact of specific mutations, breeders and researchers will be able to more effectively improve genetic gain in cassava. Millions of years of selection and evolution can reveal what regions of a genome are functionally important and what mutations may be deleterious. I sequenced and assembled 27 plant species that, like cassava, belong to the Euphorbiaceae family. Using comparative genomics with these and other publicly available genome data, I analyzed evolutionary conservation across 53 species. By looking at selection signatures in cassava through evolutionary conservation, I discovered genes responsible for effective sexual reproduction to have an abundance of functional mutation in cassava suggesting a relaxation of selection compared to the rest of the Euphorbiaceae family. Derived alleles at conserved regions of the genome were then used to identify putative deleterious mutation contributing to genetic load. These mutations were found to be negatively correlated with fitness related traits in cassava and were additionally validated through incorporation in genomic prediction scenarios. This dissertation summarizes the efforts made to uncover the source and effects of genetic load in cassava by leveraging millions of years of evolutionary signal.

Advances in cassava genomics, genetics and breeding

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Publisher : Frontiers Media SA
ISBN 13 : 283252589X
Total Pages : 214 pages
Book Rating : 4.8/5 (325 download)

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Book Synopsis Advances in cassava genomics, genetics and breeding by : Xiaofei Zhang

Download or read book Advances in cassava genomics, genetics and breeding written by Xiaofei Zhang and published by Frontiers Media SA. This book was released on 2023-06-08 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Manual on MUTATION BREEDING THIRD EDITION

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Publisher : Food & Agriculture Org.
ISBN 13 : 9251305269
Total Pages : 319 pages
Book Rating : 4.2/5 (513 download)

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Book Synopsis Manual on MUTATION BREEDING THIRD EDITION by : Food and Agriculture Organization of the United Nations

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.

Cassava

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Publisher : CABI
ISBN 13 : 9780851998831
Total Pages : 362 pages
Book Rating : 4.9/5 (988 download)

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Book Synopsis Cassava by : R. J. Hillocks

Download or read book Cassava written by R. J. Hillocks and published by CABI. This book was released on 2002 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cassava is a major tropical tuber crop found throughout the tropics (India, Oceania, Africa and Latin America). Hitherto, there has been no single text covering all aspects of cassava biology, production and utilization. This book fills that gap, representing the first comprehensive research level overview of this main staple crop. Chapters are written by leading experts in this field from all continents. The book is suitable for those working and researching in cassava, in both developed and developing countries, as well as advanced students.

Genome Engineering for Crop Improvement

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Publisher : Springer Nature
ISBN 13 : 3030633721
Total Pages : 277 pages
Book Rating : 4.0/5 (36 download)

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Book Synopsis Genome Engineering for Crop Improvement by : Bidyut Kumar Sarmah

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.

Plant Systems Biology

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Publisher : Springer Science & Business Media
ISBN 13 : 376437439X
Total Pages : 362 pages
Book Rating : 4.7/5 (643 download)

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Book Synopsis Plant Systems Biology by : Sacha Baginsky

Download or read book Plant Systems Biology written by Sacha Baginsky and published by Springer Science & Business Media. This book was released on 2007-06-25 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume aims to provide a timely view of the state-of-the-art in systems biology. The editors take the opportunity to define systems biology as they and the contributing authors see it, and this will lay the groundwork for future studies. The volume is well-suited to both students and researchers interested in the methods of systems biology. Although the focus is on plant systems biology, the proposed material could be suitably applied to any organism.

Plant Chimeras

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Publisher : Cambridge University Press
ISBN 13 : 9780521427876
Total Pages : 208 pages
Book Rating : 4.4/5 (278 download)

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Book Synopsis Plant Chimeras by : Richard A. E. Tilney-Bassett

Download or read book Plant Chimeras written by Richard A. E. Tilney-Bassett and published by Cambridge University Press. This book was released on 1991-10-03 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, which was originally published in 1986, introduces the reader to the main steps in the analysis of chimeras, explains their structural and developmental basis, and the ways of classifying and manipulating them. The twelve chapters separate types of chimeras according to their origin - by grafting or polyploidy; their structure - sectorial or periclinal; or according to the varied parts of the plant most affected - tubers, leaves, flowers or fruit. Throughout the book care is taken to distinguish between the activity of the growing-point in determining chimera structure, and the role of gene expression in determining appearance. Examples of the experimental uses of chimeras are given and of the valuable role they can play in studying fundamental questions of anatomical development; the disadvantages of chimeras in mutation breeding are discussed too.

Plant Breeding in the Omics Era

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Publisher : Springer
ISBN 13 : 3319205323
Total Pages : 250 pages
Book Rating : 4.3/5 (192 download)

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Book Synopsis Plant Breeding in the Omics Era by : Rodomiro Ortiz Ríos

Download or read book Plant Breeding in the Omics Era written by Rodomiro Ortiz Ríos and published by Springer. This book was released on 2015-09-16 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: ​The field of plant breeding has grown rapidly in the last decade with breakthrough research in genetics and genomics, inbred development, population improvement, hybrids, clones, self-pollinated crops, polyploidy, transgenic breeding and more. This book discusses the latest developments in all these areas but explores the next generation of needs and discoveries including omics beyond genomics, cultivar seeds and intellectual and property rights. This book is a leading-edge publication of the latest results and forecasts important areas of future needs and applications.​

Association Mapping in Plants

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Publisher : Springer Science & Business Media
ISBN 13 : 0387360115
Total Pages : 290 pages
Book Rating : 4.3/5 (873 download)

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Book Synopsis Association Mapping in Plants by : Nnadozie C. Oraguzie

Download or read book Association Mapping in Plants written by Nnadozie C. Oraguzie and published by Springer Science & Business Media. This book was released on 2007-01-06 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides both basic and advanced understanding of association mapping and an awareness of population genomics tools to facilitate mapping and identification of the underlying causes of quantitative trait variation in plants. It acts as a useful review of the marker technology, the statistical methodology, and the progress to date. It also offers guides to the use of single nucleotide polymorphisms (SNPs) in association studies.

The Potato Crop

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Publisher : Springer Nature
ISBN 13 : 3030286835
Total Pages : 524 pages
Book Rating : 4.0/5 (32 download)

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Book Synopsis The Potato Crop by : Hugo Campos

Download or read book The Potato Crop written by Hugo Campos and published by Springer Nature. This book was released on 2019-12-03 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is open access under a CC BY 4.0 license. This book provides a fresh, updated and science-based perspective on the current status and prospects of the diverse array of topics related to the potato, and was written by distinguished scientists with hands-on global experience in research aspects related to potato. The potato is the third most important global food crop in terms of consumption. Being the only vegetatively propagated species among the world’s main five staple crops creates both issues and opportunities for the potato: on the one hand, this constrains the speed of its geographic expansion and its options for international commercialization and distribution when compared with commodity crops such as maize, wheat or rice. On the other, it provides an effective insulation against speculation and unforeseen spikes in commodity prices, since the potato does not represent a good traded on global markets. These two factors highlight the underappreciated and underrated role of the potato as a dependable nutrition security crop, one that can mitigate turmoil in world food supply and demand and political instability in some developing countries. Increasingly, the global role of the potato has expanded from a profitable crop in developing countries to a crop providing income and nutrition security in developing ones. This book will appeal to academics and students of crop sciences, but also policy makers and other stakeholders involved in the potato and its contribution to humankind’s food security.

FUTURE SMART FOOD

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Publisher : Food & Agriculture Org.
ISBN 13 : 9251304955
Total Pages : 241 pages
Book Rating : 4.2/5 (513 download)

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Book Synopsis FUTURE SMART FOOD by : Food and Agriculture Organization of the United Nations

Download or read book FUTURE SMART FOOD 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 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication demonstrates the benefits of neglected and underutilized species, including amaranth, sorghum and cowpea, and their potential contribution to achieving Zero Hunger in South and Southeast Asia.

Agrobiodiversity

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Publisher : MIT Press
ISBN 13 : 0262549697
Total Pages : 403 pages
Book Rating : 4.2/5 (625 download)

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Book Synopsis Agrobiodiversity by : Karl S. Zimmerer

Download or read book Agrobiodiversity written by Karl S. Zimmerer and published by MIT Press. This book was released on 2023-10-31 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experts discuss the challenges faced in agrobiodiversity and conservation, integrating disciplines that range from plant and biological sciences to economics and political science. Wide-ranging environmental phenomena—including climate change, extreme weather events, and soil and water availability—combine with such socioeconomic factors as food policies, dietary preferences, and market forces to affect agriculture and food production systems on local, national, and global scales. The increasing simplification of food systems, the continuing decline of plant species, and the ongoing spread of pests and disease threaten biodiversity in agriculture as well as the sustainability of food resources. Complicating the situation further, the multiple systems involved—cultural, economic, environmental, institutional, and technological—are driven by human decision making, which is inevitably informed by diverse knowledge systems. The interactions and linkages that emerge necessitate an integrated assessment if we are to make progress toward sustainable agriculture and food systems. This volume in the Strüngmann Forum Reports series offers insights into the challenges faced in agrobiodiversity and sustainability and proposes an integrative framework to guide future research, scholarship, policy, and practice. The contributors offer perspectives from a range of disciplines, including plant and biological sciences, food systems and nutrition, ecology, economics, plant and animal breeding, anthropology, political science, geography, law, and sociology. Topics covered include evolutionary ecology, food and human health, the governance of agrobiodiversity, and the interactions between agrobiodiversity and climate and demographic change.

Plant Comparative Genomics

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Publisher : Springer Nature
ISBN 13 : 1071624296
Total Pages : 293 pages
Book Rating : 4.0/5 (716 download)

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Book Synopsis Plant Comparative Genomics by : Alejandro Pereira-Santana

Download or read book Plant Comparative Genomics written by Alejandro Pereira-Santana and published by Springer Nature. This book was released on 2022-07-11 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This detailed book presents recent methodologies for the task of inspecting the genomic world of plants, extracting valuable information, and presenting it in a readable way. With a focus on bioinformatics tools, the volume explores phylogenetics and evolution, Omics analysis, as well as experimental procedures for trait characterization. Written for the highly successful Methods in Molecular Biology series, chapters include the kind of vital expert implementation advice that will lead to successful results. Authoritative and practical, Plant Comparative Genomics serves as an ideal resource for researchers looking to implement comparative tools in order to explore their genomic data for their daily scientific work.

Plant Biodiversity and Genetic Resources

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Publisher : MDPI
ISBN 13 : 3036508945
Total Pages : 672 pages
Book Rating : 4.0/5 (365 download)

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Book Synopsis Plant Biodiversity and Genetic Resources by : Andreas W. Ebert

Download or read book Plant Biodiversity and Genetic Resources written by Andreas W. Ebert and published by MDPI. This book was released on 2021-06-18 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers included in this Special Issue address a variety of important aspects of plant biodiversity and genetic resources, including definitions, descriptions, and illustrations of different components and their value for food and nutrition security, breeding, and environmental services. Furthermore, comprehensive information is provided regarding conservation approaches and techniques for plant genetic resources, policy aspects, and results of biological, genetic, morphological, economic, social, and breeding-related research activities. The complexity and vulnerability of (plant) biodiversity and its inherent genetic resources, as an integral part of the contextual ecosystem and the human web of life, are clearly demonstrated in this Special Issue, and for several encountered problems and constraints, possible approaches or solutions are presented to overcome these.

Understanding Options for Agricultural Production

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Publisher : Springer Science & Business Media
ISBN 13 : 9401736243
Total Pages : 405 pages
Book Rating : 4.4/5 (17 download)

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Book Synopsis Understanding Options for Agricultural Production by : G.Y. Tsuji

Download or read book Understanding Options for Agricultural Production written by G.Y. Tsuji and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first premise of this book is that farmers need access to options for improving their situation. In agricultural terms, these options might be manage ment alternatives or different crops to grow, that can stabilize or increase household income, that reduce soil degradation and dependence on off-farm inputs, or that exploit local market opportunities. Farmers need a facilitating environment, in which affordable credit is available if needed, in which policies are conducive to judicious management of natural resources, and in which costs and prices of production are stable. Another key ingredient of this facilitating environment is information: an understanding of which options are viable, how these operate at the farm level, and what their impact may be on the things that farmers perceive as being important. The second premise is that systems analysis and simulation have an impor tant role to play in fostering this understanding of options, traditional field experimentation being time-consuming and costly. This book summarizes the activities of the International Benchmark Sites Network for Agrotechnology Transfer (IBSNAT) project, an international initiative funded by the United States Agency for International Development (USAID). IBSNAT was an attempt to demonstrate the effectiveness of understanding options through systems analysis and simulation for the ultimate benefit of farm households in the tropics and subtropics. The idea for the book was first suggested at one of the last IBSNAT group meetings held at the University of Hawaii in 1993.

Mountain agriculture: Opportunities for harnessing Zero Hunger in Asia

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Publisher : Food & Agriculture Org.
ISBN 13 : 9251316805
Total Pages : 322 pages
Book Rating : 4.2/5 (513 download)

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Book Synopsis Mountain agriculture: Opportunities for harnessing Zero Hunger in Asia by : Food and Agriculture Organization of the United Nations

Download or read book Mountain agriculture: Opportunities for harnessing Zero Hunger in Asia written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2019-08-07 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mountain food security and nutrition are core issues that can contribute positively to the achievement of the Sustainable Development Goals but paradoxically are often ignored in Zero Hunger and poverty reduction-related agenda. Under the overall leadership of José Graziano da Silva, the Former Director-General of FAO, sustainable mountain agriculture development is set as a priority in Asia and the Pacific, to effectively address this issue and assist Member Countries in tackling food insecurity and malnutrition in mountain regions. This comprehensive publication is the first of its kind that focuses on the multidimensional status, challenges, opportunities and solutions of sustainable mountain agriculture development for Zero Hunger in Asia. This publication is building on the ‘International Workshop and Regional Expert Consultation on Mountain Agriculture Development and Food Security and Nutrition Governance’, held by FAO RAP and UIR in November 2018 Beijing, in collaboration with partners from national governments, national agriculture institutes, universities, international organizations and international research institutes. The publication provides analysis with evidence on how mountain agriculture could contribute to satisfying all four dimensions of food security, to transform food systems to be nutrition-sensitive, climate-resilient, economically-viable and locally adaptable. From this food system perspective, the priority should be given to focus on specialty mountain product identification (e.g. Future Smart Food), production, processing, marketing and consumption, which would effectively expose the potential of mountain agriculture to contribute to Zero Hunger and poverty reduction. In addition, eight Asian country case studies not only identify context-specific challenges within biophysical-technical, policy, socio-economic and institutional dimensions.

Combating Desertification with Plants

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Publisher : Springer Science & Business Media
ISBN 13 : 1461513278
Total Pages : 451 pages
Book Rating : 4.4/5 (615 download)

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Book Synopsis Combating Desertification with Plants by : D. Pasternak

Download or read book Combating Desertification with Plants written by D. Pasternak and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conference "Combating Desertification with Plants" was held in Beer Sheva, Israel, from November 2-5, 1999, and was attended by 70 participants from 30 countries and/or international organisations. Desertification - the degradation of soils in drylands - is a phenomenon occurring in scores of countries around the globe. The number of people (in semiarid regions) affected by the steady decline in the productivity of their lands is in the hundred millions. The measures required to halt and reverse the process of desertification fall into many categories - policy, institutional, sociological-anthropological, and technical. Although technical "solutions" are not currently in vogue, the conference organizers felt that perhaps the pendulum had swung too far in the direction of "participatory approaches." Hence IPALAC - The International Program for Arid Land Crops - whose function is to serve as a catalyst for optimizing the contribution of plant germplasm to sustainable development in desertification-prone regions - felt the time was opportune for providing a platform for projects where the "plant-driven" approach to development finds expression. Some 45 papers were delivered at the conference, falling into the categories of this volume: Overview, Potential Germplasm for Arid Lands, Introduction, Domestication and Dissemination of Arid Land Plants, Land Rehabilitation, and Mechanisms of Plant Transfer. The conference was funded by UNESCO (Division of Ecological Sciences), the Ministry of Foreign Affairs of Finland, and MASHAV, Israel's Center for International Development Cooperation.