Identification And Functional Dissection Of Stress Responsive Genes In Cotton
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Identification And Functional Dissection Of Stress Responsive Genes In Cotton
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Author : Jia-He Wu
language : en
Publisher: Frontiers Media SA
Release Date : 2022-11-22
Identification And Functional Dissection Of Stress Responsive Genes In Cotton written by Jia-He Wu and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-11-22 with Science categories.
The Applications Of New Multi Locus Gwas Methodologies In The Genetic Dissection Of Complex Traits
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Author : Yuan-Ming Zhang
language : en
Publisher: Frontiers Media SA
Release Date : 2019-06-19
The Applications Of New Multi Locus Gwas Methodologies In The Genetic Dissection Of Complex Traits written by Yuan-Ming Zhang and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-06-19 with categories.
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.
Genetic Advancements For Improving The Plant Tolerance To Biotic And Abiotic Stresses
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Author : Krishnanand P. Kulkarni
language : en
Publisher: Frontiers Media SA
Release Date : 2024-05-31
Genetic Advancements For Improving The Plant Tolerance To Biotic And Abiotic Stresses written by Krishnanand P. Kulkarni and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-05-31 with Science categories.
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.
Progress In Botany Vol 81
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Author : Francisco M. Cánovas
language : en
Publisher: Springer Nature
Release Date : 2020-01-23
Progress In Botany Vol 81 written by Francisco M. Cánovas and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-23 with Science categories.
With one volume each year, this series keeps scientists and advanced students informed of the latest developments and results in all areas of the plant sciences. The present volume includes reviews on plant physiology, biochemistry, genetics and genomics, forests, and ecosystems.
Marker Assisted Selection Mas In Crop Plants Volume Ii
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Author : Ting Peng
language : en
Publisher: Frontiers Media SA
Release Date : 2024-06-13
Marker Assisted Selection Mas In Crop Plants Volume Ii written by Ting Peng and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-06-13 with Science categories.
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
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Author : Richard R.-C. Wang
language : en
Publisher: MDPI
Release Date : 2020-12-02
Mapping Abiotic Stress Tolerance Genes In Plants written by Richard R.-C. Wang and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-12-02 with Science categories.
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
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Author : Ranjeet Ranjan Kumar
language : en
Publisher: Frontiers Media SA
Release Date : 2023-09-06
Heat Stress Response Mitigation And Tolerance In Plants written by Ranjeet Ranjan Kumar and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-09-06 with Science categories.
Plant Signaling Molecules
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Author : M. Iqbal R. Khan
language : en
Publisher: Woodhead Publishing
Release Date : 2019-03-15
Plant Signaling Molecules written by M. Iqbal R. Khan and has been published by Woodhead Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-03-15 with Technology & Engineering categories.
Plant Signaling Molecule: Role and Regulation under Stressful Environments explores tolerance mechanisms mediated by signaling molecules in plants for achieving sustainability under changing environmental conditions. Including a wide range of potential molecules, from primary to secondary metabolites, the book presents the status and future prospects of the role and regulation of signaling molecules at physiological, biochemical, molecular and structural level under abiotic stress tolerance. This book is designed to enhance the mechanistic understanding of signaling molecules and will be an important resource for plant biologists in developing stress tolerant crops to achieve sustainability under changing environmental conditions. - Focuses on plant biology under stress conditions - Provides a compendium of knowledge related to plant adaptation, physiology, biochemistry and molecular responses - Identifies treatments that enhance plant tolerance to abiotic stresses - Illustrates specific physiological pathways that are considered key points for plant adaptation or tolerance to abiotic stresses
Approaches For Enhancing Abiotic Stress Tolerance In Plants
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Author : Mirza Hasanuzzaman
language : en
Publisher: CRC Press
Release Date : 2019-01-10
Approaches For Enhancing Abiotic Stress Tolerance In Plants written by Mirza Hasanuzzaman and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-01-10 with Science categories.
Plants are frequently exposed to unfavorable and adverse environmental conditions known as abiotic stressors. These factors can include salinity, drought, heat, cold, flooding, heavy metals, and UV radiation which pose serious threats to the sustainability of crop yields. Since abiotic stresses are major constraints for crop production, finding the approaches to enhance stress tolerance is crucial to increase crop production and increase food security. This book discusses approaches to enhance abiotic stress tolerance in crop plants on a global scale. Plants scientists and breeders will learn how to further mitigate plant responses and develop new crop varieties for the changing climate.
Cumulated Index Medicus
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Author :
language : en
Publisher:
Release Date : 1995
Cumulated Index Medicus written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Medicine categories.