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Genetic Analysis Of Nitrogen Use Efficiency In Arabidopsis Thaliana
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Book Synopsis Genetic Analysis of Nitrogen Use Efficiency in Arabidopsis Thaliana by :
Download or read book Genetic Analysis of Nitrogen Use Efficiency in Arabidopsis Thaliana written by and published by . This book was released on 2019 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen (N) is an abundant element on earth. It is a crucial macro-element for plant growth and development. The lack of N causes reduced shoot growth and photosynthesis, early flowering, increased lateral/primary root ratio, and anthocyanin accumulation. Farmers apply N fertilizers to deal with N shortage, however, it causes adverse effects on the environment. Plants are adapted to live under low N supply and can still sustain growth and reproduction. N use efficiency (NUE), shoot dry matter per shoot N content, is used to measure the adaptation to the N depletion. This research investigates the candidate genes, which are responsible for sub-optimal N supply adaptation by using Arabidopsis thaliana, as a model organism. 354 diverse accessions of a natural population, called as HapMap population, are screened under sub-optimal (1 mM) and optimal (5 mM) N (in the form of ammonium/nitrate) conditions. NUE, related agronomic traits (NRATs), and phenotypic plasticity are used to map quantitative trait loci (QTLs). Genome-wide association study (GWAS) is used as a mapping technique and identifies 28 QTLs. 20 accessions from HapMap population are reassessed to confirm extreme accessions in the population. Besides, positive correlation is observed between NUE and relative growth rate and between shoot N concentration and water content. Br-0 and Col-0, two distinct accessions on NUE, are selected as parental accessions for further QTL investigation using bi-parental linkage mapping. QTL mapping reveals seven loci in Br-0 and Col-0 RIL population. One locus, associated with the phenotypic plasticity of water content in GWAS and the shoot fresh weight in the bi-parental linkage mapping, is found to be co-located in both mapping results. This research indicates that the natural genetic variation in Arabidopsis thaliana has a great potential for investigation of NUE improvement in plants. Both GWAS and bi-parental linkage mapping use the natural genetic variation to identify QTLs associated with NUE, NRATs, and phenotypic plasticity.
Book Synopsis Nitrogen Use Efficiency: Plant Biology to Crop Improvement by : Nandula Raghuram
Download or read book Nitrogen Use Efficiency: Plant Biology to Crop Improvement written by Nandula Raghuram and published by Frontiers Media SA. This book was released on 2024-07-29 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: The predominant role of unused fertilizers in reactive nitrogen pollution and the need for research and policies to improve nitrogen use efficiency (NUE) is now well known globally. NUE research was originally championed by the scientists of the International Nitrogen Initiative (INI) and later recognized by some national governments and UN agencies such as UNEP, FAO and UNECE. The resulting first ever UN resolution on “Sustainable nitrogen management” in 2019 boosted the demand for solutions, especially in agriculture. The Berlin Declaration from the INI 2021 conference called for improvement of nitrogen use efficiency towards achieving sustainable food systems and all the 17 sustainable development goals. Crop NUE is primarily a biological problem, as there exists a genetic limit to agronomic improvement. Overcoming this genetic barrier for crop improvement requires better understanding of the biological mechanisms of N-response and the genetic determinants of NUE. Fortunately, crop genomics in general and the functional genomics of N-response in particular have been providing a wealth of information. The recent developments in phenotyping and genotyping for NUE and the emergence of phenomics, coupled with the growing ability of bioinformatics to integrate diverse datasets offer unprecedented opportunities to solve the NUE puzzle. Some candidate genes for this multi-genic trait have been validated, while some others are being identified, shortlisted or offered for validation.
Book Synopsis Engineering Nitrogen Utilization in Crop Plants by : Ashok Shrawat
Download or read book Engineering Nitrogen Utilization in Crop Plants written by Ashok Shrawat and published by Springer. This book was released on 2018-07-28 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses and addresses the rapidly increasing world population demand for food, which is expected to double by 2050. To meet these demands farmers will need to improve crop productivity, which relies heavily on nitrogen (N) fertilization. Production of N fertilizers, however, consumes huge amounts of energy and the loss of excess N fertilizers to leaching results in the pollution of waterways and oceans. Therefore, increasing plant nitrogen use efficiency (NUE) is essential to help farmers produce more while conserving the environment. This book assembles some of the best work of top researchers from academic and industrial institutions in the area of NUE and provides valuable insight to scholars and researchers by its comprehensive discussion of current and future strategies to improve NUE through genetic manipulation. This book should also be highly valuable to policy makers, environmentalists, farmers, biotechnology executives, and to the hard-core researchers working in the lab.
Book Synopsis Nitrogen Use Efficiency in Plants by : Vanitha Jain
Download or read book Nitrogen Use Efficiency in Plants written by Vanitha Jain and published by New India Publishing Agency. This book was released on 2011-01-01 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen fertilizers are necessary to enhance agricultural production and to sustain food security. However, their inefficient use accrues from inherent limitations of the crop plants as well as the manner in which N fertilizers are formulated, applied and managed. The main aim of the book is to assess the various aspects of the fate of fertilizer N in context of the overall N inputs to agricultural systems, with a view to enhance the efficiency of nitrogen use and reduce the negative impacts on environment. The cross cutting issues relate to improvement in nitrogen use by emerging technologies (genetic enhancement, QTL mapping), meeting N needs by understanding its interactions with other nutrients, and mitigation of nitrogen losses caused by environmental factors and management practices. Nitrogen Use Efficiency in Plants develops links between basic and applied research and practical crop production by addressing a wide range of topics relating to nitrogen use efficiency, and to plant and crop responses to applications of nitrogen via fertilizers, including nitrogen acquisition and reduction, molecular approaches, nitrate induction and signaling; and nitrogen use under abiotic stresses. Nitrogen Use Efficiency in Plants is an invaluable classroom aid for academics working in plant physiology, biochemistry, biotechnology, molecular breeding and agronomy, and an essential professional resource for researchers working in plant and crop systems as it provides a comprehensive, interdisciplinary description of problems related to the efficient use of nitrogen in agriculture.
Book Synopsis Nitrogen Use Efficiency and Sustainable Nitrogen Management in Crop Plants by : Nandula Raghuram
Download or read book Nitrogen Use Efficiency and Sustainable Nitrogen Management in Crop Plants written by Nandula Raghuram and published by Frontiers Media SA. This book was released on 2022-04-26 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Nitrogen written by Peter J. Lea and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Jointly published with INRA, Paris. This book covers all aspects of the transfer of nitrogen from the soil and air to a final resting place in the seed protein of a crop plant. It describes the physiological and molecular mechanisms of ammonium and nitrate transport and assimilation, including symbiotic nitrogen fixation by the Rhizobiacea. Amino acid metabolism and nitrogen traffic during plant growth and development and details of protein biosynthesis in the seeds are also extensively covered. Finally, the effects of the application of nitrogen fertilisers on plant growth, crop yield and the environment are discussed. Written by international experts in their field, Plant Nitrogen is essential reading for all plant biochemists, biotechnologists, molecular biologists and physiologists as well as plant breeders, agricultural engineers, agronomists and phytochemists.
Book Synopsis The Molecular and Physiological Basis of Nutrient Use Efficiency in Crops by : Malcolm J. Hawkesford
Download or read book The Molecular and Physiological Basis of Nutrient Use Efficiency in Crops written by Malcolm J. Hawkesford and published by John Wiley & Sons. This book was released on 2011-09-21 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Efforts to increase efficient nutrient use by crops are of growing importance as the global demand for food, fibre and fuel increases and competition for resources intensifies. The Molecular and Physiological Basis of Nutrient Use Efficiency in Crops provides both a timely summary of the latest advances in the field as well as anticipating directions for future research. The Molecular and Physiological Basis of Nutrient Use Efficiency in Crops bridges the gap between agronomic practice and molecular biology by linking underpinning molecular mechanisms to the physiological and agronomic aspects of crop yield. These chapters provide an understanding of molecular and physiological mechanisms that will allow researchers to continue to target and improve complex traits for crop improvement. Written by leading international researchers, The Molecular and Physiological Basis of Nutrient Use Efficiency in Crops will be an essential resource for the crop science community for years to come. Special Features: coalesces current knowledge in the areas of efficient acquisition and utilization of nutrients by crop plants with emphasis on modern developments addresses future directions in crop nutrition in the light of changing climate patterns including temperature and water availability bridges the gap between traditional agronomy and molecular biology with focus on underpinning molecular mechanisms and their effects on crop yield includes contributions from a leading team of global experts in both research and practical settings
Book Synopsis Genome-wide Association Analysis and Phenotypic Study of Nitrogen Use Efficiency in Arabidopsis Thaliana by : X. Wei
Download or read book Genome-wide Association Analysis and Phenotypic Study of Nitrogen Use Efficiency in Arabidopsis Thaliana written by X. Wei and published by . This book was released on 2011 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Annual Plant Reviews, Nitrogen Metabolism in Plants in the Post-genomic Era by : Christine Foyer
Download or read book Annual Plant Reviews, Nitrogen Metabolism in Plants in the Post-genomic Era written by Christine Foyer and published by John Wiley & Sons. This book was released on 2011-06-09 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of plant nitrogen metabolism continues to be a compelling focus for basic research activities because there is a strong demand for immediate solutions, particularly in key areas, such as improving plant nitrogen use efficiency, which are crucial to future agricultural sustainability and the future economic success of agriculture. The 13 reviews which comprise this excellent and carefully edited new volume bring together the expertise and enthusiasm of an international team of leading researchers. Topics covered include nitrogen sensing and signalling, uptake and membrane systems, nitric oxide, primary nitrogen assimilation and C/N balance and interactions, and regulation of root and plant architecture. Together, these reviews provide an insight into how plants sense, uptake and assimilate nitrogen into the organic compounds required for growth, co-ordinate nitrogen and carbon metabolism and regulate growth and development according to nitrogen availability. The transcription factors that act to integrate environmental nutrient (nitrogen) signals to co-ordinate primary and secondary metabolism are discussed, together with new concepts of cross-talk, transport and signalling, and how such molecular networks influence nitrogen and carbon cycling processes in the environment. Annual Plant Reviews, Volume 42: Nitrogen Metabolism in Plants in the Post-genomic Era is an essential purchase for advanced students, researchers and professionals in plant sciences, biochemistry, physiology, molecular biology, genetics and agricultural sciences, working in the academic and industrial sectors. Libraries in all universities and research establishments where these subjects are studied and taught will need copies of this excellent volume on their shelves.
Book Synopsis Nutrient Use Efficiency in Plants by : Malcolm J. Hawkesford
Download or read book Nutrient Use Efficiency in Plants written by Malcolm J. Hawkesford and published by Springer. This book was released on 2014-11-14 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrient Use Efficiency in Plants: Concepts and Approaches is the ninth volume in the Plant Ecophysiology series. It presents a broad overview of topics related to improvement of nutrient use efficiency of crops. Nutrient use efficiency (NUE) is a measure of how well plants use the available mineral nutrients. It can be defined as yield (biomass) per unit input (fertilizer, nutrient content). NUE is a complex trait: it depends on the ability to take up the nutrients from the soil, but also on transport, storage, mobilization, usage within the plant, and even on the environment. NUE is of particular interest as a major target for crop improvement. Improvement of NUE is an essential pre-requisite for expansion of crop production into marginal lands with low nutrient availability but also a way to reduce use of inorganic fertilizer.
Book Synopsis Nitrogen in Agriculture by : Khan Amanullah
Download or read book Nitrogen in Agriculture written by Khan Amanullah and published by BoD – Books on Demand. This book was released on 2018-02-01 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen is the most yield-restraining nutrient in crop production globally. Efficient nitrogen management is one of the most important factor for improving nitrogen use efficiency, field crops productivity and profitability. Efficient use of nitrogen for crop production is therefore very important for increasing grain yield, maximizing economic return and minimizing nitrous oxide (N2O) emission from the fields and nitrate (NO3) leaching to ground water. Integrated nitrogen management is a good strategy to improve plant growth, increase yield and yield components, grain quality and reduce environmental problems. Integrated nitrogen management (combined use of chemical + organic + bio-fertilizers) in field crop production is more resilient to climate change.
Book Synopsis Genome-Wide Association Studies and Genomic Prediction by : Cedric Gondro
Download or read book Genome-Wide Association Studies and Genomic Prediction written by Cedric Gondro and published by Humana Press. This book was released on 2013-06-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the detailed genomic information that is now becoming available, we have a plethora of data that allows researchers to address questions in a variety of areas. Genome-wide association studies (GWAS) have become a vital approach to identify candidate regions associated with complex diseases in human medicine, production traits in agriculture, and variation in wild populations. Genomic prediction goes a step further, attempting to predict phenotypic variation in these traits from genomic information. Genome-Wide Association Studies and Genomic Prediction pulls together expert contributions to address this important area of study. The volume begins with a section covering the phenotypes of interest as well as design issues for GWAS, then moves on to discuss efficient computational methods to store and handle large datasets, quality control measures, phasing, haplotype inference, and imputation. Later chapters deal with statistical approaches to data analysis where the experimental objective is either to confirm the biology by identifying genomic regions associated to a trait or to use the data to make genomic predictions about a future phenotypic outcome (e.g. predict onset of disease). As part of the Methods in Molecular Biology series, chapters provide helpful, real-world implementation advice.
Book Synopsis Handbook of Plant and Crop Physiology by : Mohammad Pessarakli
Download or read book Handbook of Plant and Crop Physiology written by Mohammad Pessarakli and published by CRC Press. This book was released on 2001-09-18 with total page 997 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions from over 70 international experts, this reference provides comprehensive coverage of plant physiological stages and processes under both normal and stressful conditions. It emphasizes environmental factors, climatic changes, developmental stages, and growth regulators as well as linking plant and crop physiology to the production of food, feed, and medicinal compounds. Offering over 300 useful tables, equations, drawings, photographs, and micrographs, the book covers cellular and molecular aspects of plant and crop physiology, plant and crop physiological responses to heavy metal concentration and agrichemicals, computer modeling in plant physiology, and more.
Book Synopsis Nutrient Dynamics for Sustainable Crop Production by : Ram Swaroop Meena
Download or read book Nutrient Dynamics for Sustainable Crop Production written by Ram Swaroop Meena and published by Springer Nature. This book was released on 2019-09-06 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cropping system is one of the important components of sustainable agriculture, since it provides more efficient nutrient cycling. As such, balanced fertilization must be based on the concept of sustainable crop production. Feeding the rapidly growing world population using environmentally sustainable production systems is a major challenge, especially in developing countries. A number of studies have highlighted the fact that degradation of the world's cultivated soils is largely responsible for low and plateauing yields. Soil is lost rapidly but only formed over millennia, and this represents the greatest global threat to nutrient dynamics in agriculture. This means that nutrient management is essential to provide food and nutritional security for current and future generations. Nutrient dynamics and soil sustainability imply the maintenance of the desired ecological balance, the enhancement and preservation of soil functions, and the protection of biodiversity above and below ground. Understanding the role of nutrient management as a tool for soil sustainability and nutritional security requires a holistic approach to a wide range of soil parameters (biological, physical, and chemical) to assess the soil functions and nutrient dynamics of a crop management system within the desired timescale. Further, best nutrient management approaches are important to advance soil sustainability and food and nutritional security without compromising the soil quality and productive potential. Sustainable management practices must allow environmentally and economically sustainable yields and restore soil health and sustainability. This book presents soil management approaches that can provide a wide range of benefits, including improved fertility, with a focus on the importance of nutrient dynamics. Discussing the broad impacts of nutrients cycling on the sustainability of soil and the cropping systems that it supports, it also addresses nutrient application to allow environmentally and economically sustainable agroecosystems that restore soil health. Arguing that balanced fertilization must be based on the concept of INM for a cropping system rather than a crop, it provides a roadmap to nutrient management for sustainability. This richly illustrated book features tables, figures and photographs and includes extensive up-to-date references, making it a valuable resource for policymakers and researchers, as well as undergraduate and graduate students of Soil Science, Agronomy, Ecology and Environmental Sciences.
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309437385 Total Pages :607 pages Book Rating :4.3/5 (94 download)
Book Synopsis Genetically Engineered Crops by : National Academies of Sciences, Engineering, and Medicine
Download or read book Genetically Engineered Crops written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2017-01-28 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Recent Advances in Rice Research by : Mahmood-Ur- Rahman Ansari
Download or read book Recent Advances in Rice Research written by Mahmood-Ur- Rahman Ansari and published by BoD – Books on Demand. This book was released on 2021-03-03 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: “Recent Advances in Rice Research” is an interdisciplinary book dealing with diverse topics related to recent developments in rice research. The book discusses the latest research activities in the field of hybrid rice, various metabolites produced in rice and its biology, stress studies, and strategies to combat various biotic and abiotic stresses as well as rice economics, value addition, and product development. The book is written by an international team of researchers from all over the globe sharing their results in the field of rice research. I am hopeful that the scientific information available in this book will provide advanced knowledge for rice researchers, students, life scientists, and interested readers on some of the latest developments in rice research.
Book Synopsis Agriculture and the Nitrogen Cycle by : Arvin Mosier
Download or read book Agriculture and the Nitrogen Cycle written by Arvin Mosier and published by Island Press. This book was released on 2013-04-10 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen is an essential element for plant growth and development and a key agricultural input-but in excess it can lead to a host of problems for human and ecological health. Across the globe, distribution of fertilizer nitrogen is very uneven, with some areas subject to nitrogen pollution and others suffering from reduced soil fertility, diminished crop production, and other consequences of inadequate supply. Agriculture and the Nitrogen Cycle provides a global assessment of the role of nitrogen fertilizer in the nitrogen cycle. The focus of the book is regional, emphasizing the need to maintain food and fiber production while minimizing environmental impacts where fertilizer is abundant, and the need to enhance fertilizer utilization in systems where nitrogen is limited. The book is derived from a workshop held by the Scientific Committee on Problems of the Environment (SCOPE) in Kampala, Uganda, that brought together the world's leading scientists to examine and discuss the nitrogen cycle and related problems. It contains an overview chapter that summarizes the group's findings, four chapters on cross-cutting issues, and thirteen background chapters. The book offers a unique synthesis and provides an up-to-date, broad perspective on the issues of nitrogen fertilizer in food production and the interaction of nitrogen and the environment.
