Identification and Functional Dissection of Stress-responsive Genes in Cotton

Identification and Functional Dissection of Stress-responsive Genes in Cotton PDF Author: Jia-He Wu
Publisher: Frontiers Media SA
ISBN: 2832506593
Category : Science
Languages : en
Pages : 415

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Book Description

Identification and Functional Dissection of Stress-responsive Genes in Cotton

Identification and Functional Dissection of Stress-responsive Genes in Cotton PDF Author: Jia-He Wu
Publisher: Frontiers Media SA
ISBN: 2832506593
Category : Science
Languages : en
Pages : 415

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Book Description


The Applications of New Multi-Locus GWAS Methodologies in the Genetic Dissection of Complex Traits

The Applications of New Multi-Locus GWAS Methodologies in the Genetic Dissection of Complex Traits PDF Author: Yuan-Ming Zhang
Publisher: Frontiers Media SA
ISBN: 2889458342
Category :
Languages : en
Pages : 236

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Book Description
Genome-Wide Association Studies (GWAS) are widely used in the genetic dissection of complex traits. Most existing methods are based on single-marker association in genome-wide scans with population structure and polygenic background controls. To control the false positive rate, the Bonferroni correction for multiple tests is frequently adopted. This stringent correction results in the exclusion of important loci, especially for GWAS in crop genetics. To address this issue, multi-locus GWAS methodologies have been recommended, i.e., FASTmrEMMA, ISIS EM-BLASSO, mrMLM, FASTmrMLM, pLARmEB, pKWmEB and FarmCPU. In this Research Topic, our purpose is to clarify some important issues in the application of multi-locus GWAS methods. Here we discuss the following subjects: First, we discuss the advantages of new multi-locus GWAS methods over the widely-used single-locus GWAS methods in the genetic dissection of complex traits, metabolites and gene expression levels. Secondly, large experiment error in the field measurement of phenotypic values for complex traits in crop genetics results in relatively large P-values in GWAS, indicating the existence of small number of significantly associated SNPs. To solve this issue, a less stringent P-value critical value is often adopted, i.e., 0.001, 0.0001 and 1/m (m is the number of markers). Although lowering the stringency with which an association is made could identify more hits, confidence in these hits would significantly drop. In this Research Topic we propose a new threshold of significant QTN (LOD=3.0 or P-value=2.0e-4) in multi-locus GWAS to balance high power and low false positive rate. Thirdly, heritability missing in GWAS is a common phenomenon, and a series of scientists have explained the reasons why the heritability is missing. In this Research Topic, we also add one additional reason and propose the joint use of several GWAS methodologies to capture more QTNs. Thus, overall estimated heritability would be increased. Finally, we discuss how to select and use these multi-locus GWAS methods.

Plant Abiotic Stress

Plant Abiotic Stress PDF Author: Matthew A. Jenks
Publisher: John Wiley & Sons
ISBN: 0470994118
Category : Science
Languages : en
Pages : 288

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Book Description
Over the past decade, our understanding of plant adaptation to environmental stress has grown considerably. This book focuses on stress caused by the inanimate components of the environment associated with climatic, edaphic and physiographic factors that substantially limit plant growth and survival. Categorically these are abiotic stresses, which include drought, salinity, non-optimal temperatures and poor soil nutrition. Another stress, herbicides, is covered in this book to highlight how plants are impacted by abiotic stress originating from anthropogenic sources. The book also addresses the high degree to which plant responses to quite diverse forms of environmental stress are interconnected, describing the ways in which the plant utilizes and integrates many common signals and subsequent pathways to cope with less favorable conditions. The book is directed at researchers and professionals in plant physiology, cell biology and molecular biology, in both the academic and industrial sectors.

Plant Receptor-Like Kinases

Plant Receptor-Like Kinases PDF Author: Santosh Kumar Upadhyay
Publisher: Academic Press
ISBN: 0323907172
Category : Science
Languages : en
Pages : 429

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Book Description
Plant Receptor-like Kinases: Role in Development and Stress presents the latest research in receptor-like kinases (RLKs), a class of development and defense-response proteins in plants. As one of the largest protein families, with roles ranging from growth and development to stress response, RLKs are involved in every aspect of the plant life cycle, including growth and development, reproduction, and immunity. Development of high throughput sequencing technology has improved the identification and characterization of numerous gene families in plants in the recent years, allowing researchers to identify and characterize numerous RLK sub-families in model plant species and agro-economically important crop plants like rice, wheat, sorghum, tomatoes, and more. This book provides foundational knowledge on the classification of RLKs, their mechanism of action and their roles in the plant life cycle, as well as the most up-to-date advances in the applications of RLKs. It is an essential read for researchers interested in plant signaling and plant genomics. Presents detailed information on receptor like kinases (RLKs), including their mechanism of action and classification Analyzes numerous sub-families of RLKs and their roles in plant development and stress management Highlights the function of RLKs in plant innate immunity

Genetic advancements for improving the plant tolerance to biotic and abiotic stresses

Genetic advancements for improving the plant tolerance to biotic and abiotic stresses PDF Author: Krishnanand P. Kulkarni
Publisher: Frontiers Media SA
ISBN: 283254990X
Category : Science
Languages : en
Pages : 204

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Book Description
Crop plants are constantly exposed to multiple abiotic (such as drought, salinity, cold, flooding, heavy metal, and heat) and/or biotic (bacterial/fungal/viral) stress factors that hinder their growth and development, subsequently leading to decreases in quality and yield. During the last two decades, many classical genetic and breeding approaches have been used to develop stress-tolerant and climate-adaptable plants that can provide a better yield to meet food demands. Climate change poses a major risk to food security as the world faces frequent floods, droughts, heat waves, and the emergence of new invasive pests and diseases. Novel genomic and genetic approaches look promising to improve plant resilience under stress conditions and achieve sustainable crop improvements. Recent advances in sequencing technologies have facilitated the generation of a plethora of genomic resources in a variety of crop and plant species. With the increased availability of genomic and transcriptomic data, an increasing number of quantitative trait loci and candidate genes are being identified for their application in improving plant tolerance to abiotic and biotic stresses. New approaches such as genomic selection and genomic-assisted breeding have been utilized to develop stress-tolerant cultivars in a variety of plant species. Furthermore, transgenics and rapidly evolving CRISPR technology offer great potential for plant improvement. This Research Topic aims to provide insights into the molecular and genetic factors involved in imparting abiotic and biotic stress tolerance in plants and their application in enhancing plant adaptation to these stress conditions. To review the progress in this research category, we invite manuscripts related to the plant responses to abiotic/biotic stresses and trait improvement through genomic selection, and transgenic or gene-editing approaches. Studies including physiological, biochemical, and molecular genetic analyses revealing the mechanisms involved in plant response to abiotic/biotic stresses are welcome. Topic editor Dr. Balaji Aravindhan Pandian is employed by Enko Chem Inc. All other Topic Editors declare no competing interests with regard to the Research Topic subject.

Cotton Breeding and Biotechnology

Cotton Breeding and Biotechnology PDF Author: Zulqurnain Khan
Publisher: CRC Press
ISBN: 1000535622
Category : Science
Languages : en
Pages : 533

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Book Description
Cotton Breeding and Biotechnology presents information on one of the most economically important crops of the world, cotton. This book contains chapters on the history of cotton; breeding approaches; technologies for increasing germination, crop growth and yield; and fiber quality issues. It emphasizes sustainable development in the cotton industry analysing the progress of breeding technologies under environmental adversity. The book explores the national and global status of cotton crop, including cotton production, possible impacts of climate change, and the vulnerability of cotton to pest infestations and disease attacks. Features Focuses on cotton breeding and biotechnology Proposes ideas, data, and strategies to mount breeding programs for enhancing cotton production Details strategies for cotton quality improvement against abiotic and biotic stresses Emphasizes the revival of cotton in Pakistan and South Asian region This book is useful to researchers, cotton breeders and growers, farmers, and the agriculture industry.

Plant Stress Physiology, 2nd Edition

Plant Stress Physiology, 2nd Edition PDF Author: Sergey Shabala
Publisher: CABI
ISBN: 1780647298
Category : Science
Languages : en
Pages : 376

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Book Description
Completely updated from the successful first edition, this book provides a timely update on the recent progress in our knowledge of all aspects of plant perception, signalling and adaptation to a variety of environmental stresses. It covers in detail areas such as drought, salinity, waterlogging, oxidative stress, pathogens, and extremes of temperature and pH. This second edition presents detailed and up-to-date research on plant responses to a wide range of stresses Includes new full-colour figures to help illustrate the principles outlined in the text Is written in a clear and accessible format, with descriptive abstracts for each chapter. Written by an international team of experts, this book provides researchers with a better understanding of the major physiological and molecular mechanisms facilitating plant tolerance to adverse environmental factors. This new edition of Plant Stress Physiology is an essential resource for researchers and students of ecology, plant biology, agriculture, agronomy and plant breeding.

Marker-Assisted Selection (MAS) in Crop Plants, volume II

Marker-Assisted Selection (MAS) in Crop Plants, volume II PDF Author: Ting Peng
Publisher: Frontiers Media SA
ISBN: 2832550355
Category : Science
Languages : en
Pages : 307

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Book Description
Global climate change, reductions in arable land, and food security demands that plant breeding will continue to play an imperative role in feeding 9 billion people sustainably by 2050. In order to face this challenge, modern plant breeding will necessitate the adoption of new technologies and practices to boost production of cultivated plants by capturing or generating more favorable genetic diversity. In crop plants, the majority of agronomically important traits are quantitatively inherited, controlled by multiple genes each with a small effect (quantitative trait loci, QTLs). The most common approach to pre-breeding is to use genetic mapping to identify QTLs for key phenotypic variation followed by introgressing those QTLs into the elite gene pool with marker-assisted selection (MAS), which can enhance the selection criteria of phenotypes comparing to conventional breeding with the selection of genes. As the cost of genotyping continues to decline, the use of genotyping-by-sequencing (GBS) technologies or whole genome re-sequencing, coupled with the release of the genome sequences of plant species have permitted the development of dense arrays of single nucleotide polymorphisms (SNPs) covering the entire genome, which have in turn paved the way to genome-wide association studies (GWAS). Meanwhile, fine mapping guided by genome sequences of many plant species have facilitated the exploration of functional genes; in addition, pan-genomes constructed from various available resources such as the reference sequence and its variants, raw reads and haplotype reference panels provide a new perspective on QTL locations and potential molecular targets for plant breeding. Similarly, new approaches to marker-trait association analyses such as quantitative trait locus sequencing (QTL-seq) and quantitative trait gene sequencing (QTG-seq) that are based on bulked-segregant analysis (BSA) and whole-genome resequencing will help accelerate QTL fine-mapping and identification of the causal genes. In conclusion, the tools and strategies for MAS in modern plant breeding have been expanding in recent years. By embracing a broad array of conventional and new molecular techniques, modern plant breeding has a bright future in delivering new crop cultivars to keep our food, fiber and biobased economy diverse and safe.

Mapping Abiotic Stress-Tolerance Genes in Plants

Mapping Abiotic Stress-Tolerance Genes in Plants PDF Author: Richard R.-C. Wang
Publisher: MDPI
ISBN: 3039361147
Category : Science
Languages : en
Pages : 450

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Book Description
This book presents the latest research results on plant genes controlling tolerance to abiotic stresses including heat, cold, drought, salt, nitrogen, metals, irradiation, and exogenous phytohormones. The authors report the expression profiles, function/roles in physiological pathways, and chromosomal locations of tolerance genes. The studies involve cytogenetics, genomics, proteomics, and bioinformatics. The information is critical for food security in an environment experiencing global climate changes. Therefore, this book provides a useful reference to students and professionals in plant sciences encompassing genetics, physiology, chemistry, and breeding.

Heat Stress: Response, Mitigation, and Tolerance in Plants

Heat Stress: Response, Mitigation, and Tolerance in Plants PDF Author: Ranjeet Ranjan Kumar
Publisher: Frontiers Media SA
ISBN: 2832533353
Category : Science
Languages : en
Pages : 183

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Book Description