On Variations And Mutations
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On Variations And Mutations
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Author : William Berryman Scott
language : en
Publisher:
Release Date : 1894
On Variations And Mutations written by William Berryman Scott and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1894 with categories.
Somaclonal Variation And Induced Mutations In Crop Improvement
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Author : S.M. Jain
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-14
Somaclonal Variation And Induced Mutations In Crop Improvement written by S.M. Jain and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-14 with Science categories.
Genetic variability is an important parameter for plant breeders in any con ventional crop improvement programme. Very often the desired variation is un available in the right combination, or simply does not exist at all. However, plant breeders have successfully recombined the desired genes from cultivated crop gerrnplasm and related wild species by sexual hybridization, and have been able to develop new cultivars with desirable agronomie traits, such as high yield, disease, pest, and drought resistance. So far, conventional breeding methods have managed to feed the world's ever-growing population. Continued population growth, no further scope of expanding arable land, soil degradation, environ mental pollution and global warrning are causes of concern to plant biologists and planners. Plant breeders are under continuous pressure to improve and develop new cultivars for sustainable food production. However, it takes several years to develop a new cultivar. Therefore, they have to look for new technologies, which could be combined with conventional methods to create more genetic variability, and reduce the time in developing new cultivars, with early-maturity, and improved yield. The first report on induced mutation of a gene by HJ. Muller in 1927 was a major mi1estone in enhancing variation, and also indicated the potential applica tions of mutagenesis in plant improvement. Radiation sources, such as X-rays, gamma rays and fast neutrons, and chemical mutagens (e. g. , ethyl methane sulphonate) have been widely used to induce mutations.
Colloquium On Variation And Evolution In Plants And Microorganisms Toward A New Synthesis 50 Years After Stebbins
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Author : Francisco Jos_ Ayala
language : en
Publisher: National Academies Press
Release Date : 2000
Colloquium On Variation And Evolution In Plants And Microorganisms Toward A New Synthesis 50 Years After Stebbins written by Francisco Jos_ Ayala and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Medical categories.
Annotation In 1950, Stebbins (d. 2000) published Variation and Evolution in Plants, which extended the synthetic theory of evolution or "the modern synthesis" to plants. These 17 papers are drawn from a National Academy of Sciences colloquium held in January 2000 on the 50th anniversary of the publication of Stebbins' classic. Following a Stebbins appreciation talk (originally slotted for his own words), papers branch into sections on: early evolution and the origin of cells, virus and bacterial models, protoctist models (having to do with RNA editing), population variation, and trends and patterns in plant evolution. Annotation c. Book News, Inc., Portland, OR (booknews.com).
The Handbook Of Plant Mutation Screening
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Author : Khalid Meksem
language : en
Publisher: John Wiley & Sons
Release Date : 2009-12-21
The Handbook Of Plant Mutation Screening written by Khalid Meksem and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-12-21 with Science categories.
Induced mutagenesis is a common and promising method for screening for new crops with improved properties. This title introduces the different methods and then focuses on the screening, detection and analysis of the novel mutations. Written by a global team of authors the book is an indispensable tool for all scientists working on crop breeding in industry and academia.
Cytogenetics Evolution Biostatistics And Plant Breeding
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Author : Shukla R.S. & Chandel P.S.
language : en
Publisher: S. Chand Publishing
Release Date : 2004-09
Cytogenetics Evolution Biostatistics And Plant Breeding written by Shukla R.S. & Chandel P.S. and has been published by S. Chand Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-09 with Science categories.
Cytology , Genetics, Evolution,Biostatistics and Plant Breeding for B.Sc. & M.Sc. Students
Mutation Driven Evolution
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Author : Masatoshi Nei
language : en
Publisher: OUP Oxford
Release Date : 2013-05-02
Mutation Driven Evolution written by Masatoshi Nei and has been published by OUP Oxford this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-05-02 with Science categories.
The purpose of this book is to present a new mechanistic theory of mutation-driven evolution based on recent advances in genomics and evolutionary developmental biology. The theory asserts, perhaps somewhat controversially, that the driving force behind evolution is mutation, with natural selection being of only secondary importance. The word 'mutation' is used to describe any kind of change in DNA such as nucleotide substitution, gene duplication/deletion, chromosomal change, and genome duplication. A brief history of the principal evolutionary theories (Darwinism, mutationism, neo-Darwinism, and neo-mutationism) that preceded the theory of mutation-driven evolution is also presented in the context of the last 150 years of research. However, the core of the book is concerned with recent studies of genomics and the molecular basis of phenotypic evolution, and their relevance to mutation-driven evolution. In contrast to neo-Darwinism, mutation-driven evolution is capable of explaining real examples of evolution such as the evolution of olfactory receptors, sex-determination in animals, and the general scheme of hybrid sterility. In this sense the theory proposed is more realistic than its predecessors, and gives a more logical explanation of various evolutionary events. Mutation-Driven Evolution is suitable for graduate level students as well as professional researchers (both empiricists and theoreticians) in the fields of molecular evolution and population genetics. It assumes that the readers are acquainted with basic knowledge of genetics and molecular biology.
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Author :
language : en
Publisher: EduGorilla Community Pvt. Ltd.
Release Date :
written by and has been published by EduGorilla Community Pvt. Ltd. this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Concepts Of Epidemiology
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Author : Raj S. Bhopal
language : en
Publisher: Oxford University Press
Release Date : 2016-09-08
Concepts Of Epidemiology written by Raj S. Bhopal and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-09-08 with Medical categories.
Epidemiology is a population science that underpins health improvement and health care, by exploring and establishing the pattern, frequency, trends, and causes of a disease. Concepts of Epidemiology comprehensively describes the application of core epidemiological concepts and principles to readers interested in population health research, policy making, health service planning, health promotion, and clinical care. The book provides an overview of study designs and practical framework for the epidemiological analyses of diseases, including accounting for error and bias within studies. It discusses the ways in which epidemiological data are presented, explains the distinction between association and causation, as well as relative and absolute risks, and considers the theoretical and ethical basis of epidemiology both in the past and the future. This new edition places even greater emphasis on interactive learning. Each chapter includes learning objectives, theoretical and numerical exercises, questions and answers, a summary of the key points, and exemplar panels to illustrate the concepts and methods under consideration. Written in an accessible and engaging style, with a specialized glossary to explain and define technical terminology, Concepts of Epidemiology is ideal for postgraduate students in epidemiology, public health, and health policy. It is also perfect for clinicians, undergraduate students and researchers in medicine, nursing and other health disciplines who wish to improve their understanding of fundamental epidemiological concepts.
Variation
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Author : Benedikt Hallgrímsson
language : en
Publisher: Elsevier
Release Date : 2011-05-04
Variation written by Benedikt Hallgrímsson and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-05-04 with Science categories.
Darwin's theory of evolution by natural selection was based on the observation that there is variation between individuals within the same species. This fundamental observation is a central concept in evolutionary biology. However, variation is only rarely treated directly. It has remained peripheral to the study of mechanisms of evolutionary change. The explosion of knowledge in genetics, developmental biology, and the ongoing synthesis of evolutionary and developmental biology has made it possible for us to study the factors that limit, enhance, or structure variation at the level of an animals' physical appearance and behavior. Knowledge of the significance of variability is crucial to this emerging synthesis. Variation situates the role of variability within this broad framework, bringing variation back to the center of the evolutionary stage. - Provides an overview of current thinking on variation in evolutionary biology, functional morphology, and evolutionary developmental biology - Written by a team of leading scholars specializing on the study of variation - Reviews of statistical analysis of variation by leading authorities - Key chapters focus on the role of the study of phenotypic variation for evolutionary, developmental, and post-genomic biology
Genetics Fundamentals Notes
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Author : Debasish Kar
language : en
Publisher: Springer Nature
Release Date : 2022-10-06
Genetics Fundamentals Notes written by Debasish Kar and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-06 with Science categories.
This up-to-date and comprehensive textbook is essential reading material for advanced undergraduate and graduate students with a course module in genetics and developmental biology. The book provides clear, concise, and rigorous foundational concepts of genetics. It opens with an introductory chapter that provides an overview of genetics. The book includes separate and detailed sections on classical genetics, molecular genetics, and population genetics. It covers basic and foundational principles such as Mendelian genetics, chromosomal theory, transcription, translation, mutation, and gene regulation. It further includes chapters on advanced topics such as molecular genetic techniques, genomics, and applied molecular genetics. The concluding section includes chapters on population genetics, developmental genetics, and evolutionary genetics. The chapters are written by authors with in-depth knowledge of the field. The book is replete with interesting examples, case studies, questions and suggested reading. It is useful to students and course instructors in the field of human genetics, developmental biology, life sciences, and biotechnology. It is also meant for researchers who wish to further their understanding about the fundamental concepts of genetics.