Download or read book Identification and Characterization of Cold Tolerance Associated Genes in Wheat written by Muhammad Zayed and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The low temperature remains as one of the major limiting factors of crop productivity in the temperate region, and identification of cold tolerance related genes is crucial for developing cold tolerant crop plants to increase agricultural productivity. The objective of my thesis is to identify cold tolerance related candidate genes in wheat, one of the major crops in the temperate region. In Chapter 2, I have reviewed the literature pertaining to the mechanisms of cold tolerance in plants with specific emphasis on Wheat. In Chapter 3, forty candidate genes with increased expression under cold exposure based on published microarray data were selected and further characterized. These genes belonging to four categories namely defense-related regulators; transcriptional and epigenetic regulators; post-transcriptional and post-translational regulators; and genes of unknown functions revealed many differentially expressed genes including Remorin - upregulated in response to cold; a novel gene in wheat homologous to RD29B of Arabidopsis-upregulated in response to cold and ABA; and another novel gene regulated by both ABA and MetJA. In chapter 4, the results of genome-wide identification and characterization of the wheat remorin family and its association with cold tolerance are presented. A search of the wheat database revealed the existence of twenty different remorin genes that we classified into six groups sharing a common structure and phylogenetic origin. Promoter analysis of TaREM genes revealed the presence of putative cis-elements related to diverse functions like development, hormonal regulation, biotic and abiotic stress responsiveness. Expression levels of TaREM genes were measured in plants grown under in field and laboratory conditions and in response to hormone treatment. Our analyses revealed twelve members of the remorin family that are regulated during cold acclimation of wheat in four different tissues (root, crown, stem and leaves), with the highest expression in roots. Differential gene expression was found between wheat cultivars with contrasting degree of cold tolerance suggesting the implication of TaREM genes in cold response and tolerance. Additionally, eight genes were induced in response to ABA and MetJA treatment. This genome-wide analysis of TaREM genes provides valuable resources for functional analysis aimed at understanding their role in stress adaptation. The chapter 5 is focused on gaining insights into the evolutionary history and in-silico functional characterization of a novel cold-responsive gene in wheat. This gene in wheat has distant homology to known abiotic stress-related genes in other plants including CAP160 in Spinacia oleracea, RD29B in Arabidopsis and CDeT11-24 in Craterostigma plantagineum. The results show that these genes are homologous and may have evolved from a common ancestor. The Bayesian phylogenetic analyses of the protein sequences of this gene from various plant species revealed three distinctive clades. Further analyses revealed that this gene has predominantly evolved through neutral processes with some regions experiencing signatures of negative selections and some regions showing signatures of episodic positive selections. These genes contained common K-like segments and function predictions revealed that these protein-coding genes may share at least two functions related to abiotic stress conditions. One function is similar to the cryoprotective function of LEA protein, and the second function as a signalling molecule by binding specifically to phosphatidic acid.
Download or read book Plant Stress Tolerance written by Ramanjulu Sunkar and published by Springer Nature. This book was released on with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantitative Expression Analysis of Four Low Temperature Tolerance Associated Genes During Cold Acclimation in Wheat Triticum Aestivum L written by Tyrel Jonathan Denesik and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Identification and Characterization of Meta QTLs ortho MQTLs and Candidate Genes for the Traits Associated with Lodging Tolerance in Common Wheat Triticum Aestivum L With CD Copy written by Nikita and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rice Improvement written by Jauhar Ali and published by Springer Nature. This book was released on 2021-05-05 with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is open access under a CC BY 4.0 license. By 2050, human population is expected to reach 9.7 billion. The demand for increased food production needs to be met from ever reducing resources of land, water and other environmental constraints. Rice remains the staple food source for a majority of the global populations, but especially in Asia where ninety percent of rice is grown and consumed. Climate change continues to impose abiotic and biotic stresses that curtail rice quality and yields. Researchers have been challenged to provide innovative solutions to maintain, or even increase, rice production. Amongst them, the ‘green super rice’ breeding strategy has been successful for leading the development and release of multiple abiotic and biotic stress tolerant rice varieties. Recent advances in plant molecular biology and biotechnologies have led to the identification of stress responsive genes and signaling pathways, which open up new paradigms to augment rice productivity. Accordingly, transcription factors, protein kinases and enzymes for generating protective metabolites and proteins all contribute to an intricate network of events that guard and maintain cellular integrity. In addition, various quantitative trait loci associated with elevated stress tolerance have been cloned, resulting in the detection of novel genes for biotic and abiotic stress resistance. Mechanistic understanding of the genetic basis of traits, such as N and P use, is allowing rice researchers to engineer nutrient-efficient rice varieties, which would result in higher yields with lower inputs. Likewise, the research in micronutrients biosynthesis opens doors to genetic engineering of metabolic pathways to enhance micronutrients production. With third generation sequencing techniques on the horizon, exciting progress can be expected to vastly improve molecular markers for gene-trait associations forecast with increasing accuracy. This book emphasizes on the areas of rice science that attempt to overcome the foremost limitations in rice production. Our intention is to highlight research advances in the fields of physiology, molecular breeding and genetics, with a special focus on increasing productivity, improving biotic and abiotic stress tolerance and nutritional quality of rice.
Download or read book Quantitative Expression Analysis of Four Low temperature tolerance associated Genes During Cold Acclimation in Wheat i Triticum Aestivum i L written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gene Expression Comparison by Microarray Analysis Between Two Triticum Aestivum Cultivars that Differ in Freezing Tolerance written by Simon Drouin and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Identification and Characterization of Contrasting Genotypes Cultivars to Discover Novel Players in Crop Responses to Abiotic Biotic Stresses written by Raul Antonio Sperotto and published by Frontiers Media SA. This book was released on 2022-02-24 with total page 739 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physiology and Molecular Biology of Stress Tolerance in Plants written by K.V. Madhava Rao and published by Springer Science & Business Media. This book was released on 2006-02-10 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biologists worldwide now speak the scientific language of molecular biology and use the same molecular tools. Interest is growing in the molecular biology of abiotic stress tolerance and modes of installing better tolerant mechanisms in crop plants. Current studies make plants capable of sustaining their yields even under stressful conditions. Further, this information may form the basis for its application in biotechnology and bioinformatics.
Download or read book Current Technologies in Plant Molecular Breeding written by Hee-Jong Koh and published by Springer. This book was released on 2015-08-26 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent progress in biotechnology and genomics has expanded the plant breeders’ horizon providing a molecular platform on the traditional plant breeding, which is now known as ‘plant molecular breeding’. Although diverse technologies for molecular breeding have been developed and applied individually for plant genetic improvement, common use in routine breeding programs seems to be limited probably due to the complexity and incomplete understanding of the technologies. This book is intended to provide a guide for researchers or graduate students involved in plant molecular breeding by describing principles and application of recently developed technologies with actual case studies for practical use. The nine topics covered in this book include the basics on genetic analysis of agronomic traits, methods of detecting QTLs, the application of molecular markers, genomics-assisted breeding including epigenomic issues, and genome-wide association studies. Identification methods of mutagenized plants, actual case studies for the isolation and functional studies of genes, the basics of gene transfer in major crops and the procedures for commercialization of GM crops are also described. This book would be a valuable reference for plant molecular breeders and a cornerstone for the development of new technologies in plant molecular breeding for the future.
Download or read book Cold Tolerance in Plants written by Shabir Hussain Wani and published by Springer. This book was released on 2018-11-24 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cold stress is one of the prevalent environmental stresses affecting crop productivity, particularly in temperate regions. Numerous plant types of tropical or subtropical origin are injured or killed by non-freezing low temperature, and display a range of symptoms of chilling injury such as chlorosis, necrosis, or growth retardation. In contrast, chilling tolerant species thrive well at such temperatures. To thrive under cold stress conditions, plants have evolved complex mechanisms to identify peripheral signals that allow them to counter varying environmental conditions. These mechanisms include stress perception, signal transduction, transcriptional activation of stress-responsive target genes, and synthesis of stress-related proteins and other molecules, which help plants to strive through adverse environmental conditions. Conventional breeding methods have met with limited success in improving the cold tolerance of important crop plants through inter-specific or inter-generic hybridization. A better understanding of physiological, biochemical and molecular responses and tolerance mechanisms, and discovery of novel stress-responsive pathways and genes may contribute to efficient engineering strategies that enhance cold stress tolerance. It is therefore imperative to accelerate the efforts to unravel the biochemical, physiological and molecular mechanisms underlying cold stress tolerance in plants. Through this new book, we intend to integrate the contributions from plant scientists targeting cold stress tolerance mechanisms using physiological, biochemical, molecular, structural and systems biology approaches. It is hoped that this collection will serve as a reference source for those who are interested in or are actively engaged in cold stress research.
Download or read book Biochemistry and Molecular Biology of Plant Hormones written by P.J.J. Hooykaas and published by Elsevier. This book was released on 1999-05-13 with total page 565 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides up-to-date coverage at an advanced level of a range of topics in the biochemistry and molecular biology of plant hormones, with particular emphasis on biosynthesis, metabolism and mechanisms of action. Each contribution is written by acknowledged experts in the field, providing definitive coverage of the field. No other modern book covers this subject matter at such an advanced level so comprehensively. It will be invaluable to university libraries and scientists in the plant biotechnology industries.
Download or read book Abiotic Stress Adaptation in Plants written by Ashwani Pareek and published by Springer Science & Business Media. This book was released on 2009-12-12 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental insults such as extremes of temperature, extremes of water status as well as deteriorating soil conditions pose major threats to agriculture and food security. Employing contemporary tools and techniques from all branches of science, attempts are being made worldwide to understand how plants respond to abiotic stresses with the aim to help manipulate plant performance that will be better suited to withstand these stresses. This book on abiotic stress attempts to search for possible answers to several basic questions related to plant responses towards abiotic stresses. Presented in this book is a holistic view of the general principles of stress perception, signal transduction and regulation of gene expression. Further, chapters analyze not only model systems but extrapolate interpretations obtained from models to crops. Lastly, discusses how stress-tolerant crop or model plants have been or are being raised through plant breeding and genetic engineering approaches. Twenty three chapters, written by international authorities, integrate molecular details with overall plant structure and physiology, in a text-book style, including key references.
Download or read book Light Sensing in Plants written by M. Wada and published by Springer Science & Business Media. This book was released on 2005-04-01 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants utilize light not only for photosynthesis but also as environmental signals. They are capable of perceiving wavelength, intensity, direction, duration, and other attributes of light to perform appropriate physiological and developmental changes. This volume presents overviews of and the latest findings in many of the interconnected aspects of plant photomorphogenesis, including photoreceptors (phytochromes, cryptochromes, and phototropins), signal transduction, photoperiodism, and circadian rhythms, in 42 chapters. Also included, is a prologue by Prof. Masaki Furuya that gives an overview of the historical background. With contributions from preeminent researchers in specific subjects from around the world, this book will be a valuable source for a range of scientists from undergraduate to professional levels.
Download or read book Stress Induced Gene Expression in Plants written by Amarjit Basra and published by CRC Press. This book was released on 1994-09-21 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Researchers from North America and Western Europe discuss the state of the art research on gene expression in plants as affected by various stresses such as water deficit, seed dessication, anoxia, salinity, temperature extremes, heavy metals, air pollutants, and infection by pathogens. They also look at the possibilities of exploiting genes that regulate ozone resistance and the ingenious molecular strategies that have been developed by plants for dealing with pathogen attack. Annotation copyright by Book News, Inc., Portland, OR
Download or read book Identification and characterization of contrasting genotypes cultivars to discover novel players in crop responses to abiotic biotic stresses volume II written by Raul Antonio Sperotto and published by Frontiers Media SA. This book was released on 2023-01-30 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Guide to QTL Mapping with R qtl written by Karl W. Broman and published by Springer. This book was released on 2011-12-02 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive discussion of QTL mapping concepts and theory Detailed instructions on the use of the R/qtl software, the most featured and flexible software for QTL mapping Two case studies illustrate QTL analysis in its entirety
