Plant Genome Editing Technologies

Genome Editing in Plants: Principles and Applications addresses the information of genome editing starting from principles and historical aspects to the latest advancements in the field. As genome-editing technology has emerged as promising and cutting edge, researchers around the world have started producing original research outputs, which have significantly improved our current understanding and potential of this technology. The initial chapters of this book describe different genome-editing tools as well as their principles and applications. Other chapters are dedicated to the present status and future applications of genome-editing techniques in various crop improvement programmes. Some of the advanced applications of CRISPR/Cas tools, such as base editing and RNA detection, along with regulatory aspects of genome-edited crops are described in detail. This book serves as a valuable resource to researchers in the field of crop improvement; graduate and postgraduate students engaged in plant molecular biology and biotechnology; academicians; and policy makers. Key Features: Addresses topics associated with historical development and principles of genome-editing technology Addresses basic mechanisms operating under each genome-editing technology Addresses its application in plants to design crops as per the current and future demands Addresses the regulatory mechanisms of genome-edited crops

This open access book is an update of genome editing techniques applied to a range of plants. We discuss the latest techniques and applications to cereals, roots and tubers, oilseed crops, fruit and forest trees, vegetables, legumes and algae including resistance to biotic and abiotic stresses, improved quality, drug production, yield and adaptation to climate change. The regulations in different countries worldwide, the patentibility and the perception by society of the applications of new genomic techniques are examined. This book is written by a multidisciplinary and multisectoral collective of high-profile scientists and other experts belonging to the COST Action network PlantEd, which is mainly European but with contributions from American, Australian, Canadian, Chinese, Indian, Iranian, Pakistani and Peruvian scientists. The book is aimed at a wide audience consisting of students, academics, private and public breeders, other actors in the food and bioeconomy value chains and policy and law makers. This is an open access book.

This book compiles the relevant information related to genome editing tools and their roles in crop improvement. The book contains a brief introduction about various genome editing tools and their application in major crops. It discusses the genome editing approaches and the strategies used for genome editing in different crops. Some of the chapters cover the detailed methodology of sgRNA design, vector construction and transformation in different crops followed by data analysis. A few chapters focus on the applications of genome editing tools towards crop improvement. This book will be of particular interest to plant biologists working in the field of genome editing and crop breeders. It will provide valuable information and useful material for our readers’ experimental work.

Over the past 50 years, biotechnology has been the major driving force for increasing crop productivity. Particularly, advances in plant genetic engineering technologies have opened up vast new opportunities for plant researchers and breeders to create new crop varieties with desirable traits. Recent development of precise genome modification methods, such as targeted gene knock-out/knock-in and precise gene replacement, moves genetic engineering to another level and offers even more potentials for improving crop production. The work provides an overview of the latest advances on precise genomic engineering technologies in plants. Topics include recombinase and engineered nucleases-mediated targeted modification, negative/positive selection-based homologous recombination and oligo nucleotide-mediated recombination. Finally, challenges and impacts of the new technologies on present regulations for genetic modification organisms (GMOs) will be discussed.

Over the last few decades, various techniques have been developed to alter the properties of plants and animals. While the targeted transfer of recombinant DNA into crop plants remains a valuable tool to achieve a desirable breeding outcome, integration of transgenes into the host genome has been random, which in part, leads to reduced acceptance of GMOs by the general population in some parts of the world. Likewise, methods of induced mutagenesis, such as TILLING, have the disadvantage that many mutations are induced per plant, which has to be removed again by expensive backcrossing. Advances in genome sequencing have provided more and more information on differences between susceptible and resistant varieties, which can now be directly targeted and modified using CRISPR/Cas9 technology. By selecting specific gRNAs occurrence of off-target modifications are comparatively low. ZFNs and TALENs- based approaches required re-engineering a new set of assembled polypeptides for every new target site for each experiment. The difficulty in cloning and protein engineering prevented these tools from being broadly adopted by the scientific community. Compared to these technologies, designing the CRISPR toolbox is much simpler and more flexible. CRISPR/Cas9 is versatile, less expensive and highly efficient. It has become the most widely used technology for genome editing in many organisms. Since its inception as a powerful genome-editing tool in late 2012, this breakthrough technology has completely changed how science is performed. The first few chapters in this book introduce the basic concept, design and implementation of CRISPR/Cas9 for different plant systems. They are followed by in-depth discussions on the legal and bio-safety issues accompanying commercialization and patenting of this emerging technology. Lastly, this book covers emerging areas of new tools and potential applications. We believe readers, novice and expert alike, will benefit from this all-in-one resource on genome editing for crop improvement. Chapter 17 is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.

Global food security is increasingly challenging in light of population increase, the impact of climate change on crop production, and limited land available for agricultural expansion. Plant breeding and other agricultural technologies have contributed considerably for food and nutritional security over the last few decades. Genetic engineering approaches are powerful tools that we have at our disposal to overcome substantial obstacles in the way of efficiency and productivity of current agricultural practices. Genome engineering via CRISPR/Cas9, Cpf1, base editing and prime editing, and OMICs through genomics, transcriptomics, proteomics, phenomics, an metabolomics have helped to discover underlying mechanisms controlling traits of economic importance. Principle and Practices of OMICs and Genome Editing for Crop Improvement provides recent research from eminent scholars from around the world, from various geographical regions, with established expertise on genome editing and OMICs technologies. This book offers a wide range of information on OMICs techniques and their applications to develop biotic, abiotic and climate resilient crops, metabolomics and next generation sequencing for sustainable crop production, integration bioinformatics, and multi-omics for precision plant breeding. Other topics include application of genome editing technologies for food and nutritional security, speed breeding, hybrid seed production, resource use efficiency, epigenetic modifications, transgene free breeding, database and bioinformatics for genome editing, and regulations adopted by various countries around globe for genome edited crops. Both OMICs and genome editing are vigorously utilized by researchers for crop improvement programs; however, there is limited literature available in a single source. This book provides a valuable resource not only for students at undergraduate and postgraduate level but also for researchers, stakeholders, policy makers, and practitioners interested in the potential of genome editing and OMICs for crop improvement programs.