Author: Pranveer Singh
Publisher: Springer
ISBN: 8132225651
Category : Science
Languages : en
Pages : 106
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Book Description
This book introduces readers to classical population genetics and the ways in which it can be applied to practical problems, including testing for natural selection, genetic drift, genetic differentiation, population structuring, gene flow and linkage disequilibrium. It provides a comprehensive monograph on the topic, addressing the theory, applications and evolutionary deductions, which are clearly explained using experimental results. It also offers separate chapters on origin, establishment and spread of chromosomal aberrations in populations along with details of culturing, maintaining and using Drosophila ananassae (genetically unique and the most commonly used species along with D. melanogaster) for genetic research. Encompassing topics like genetics, evolution, Drosophila genetics, population genetics, population structuring, natural selection and genetic drift in considerable detail, it provides a valuable resource to undergraduate and postgraduate students, as well as researchers at all level. This book explores some fundamental questions concerning the role of natural selection and genetic drift on the degree of inversion polymorphism. India, with its wide diversity in geo-climatic conditions, provides an excellent platform to conduct such studies. The book showcases sampling records of inversion frequencies in natural Indian populations of D. ananassae that cover more than two decades. It highlights case studies in which sampling data on inversion frequencies was combined with that from earlier surveys, generating a time series that allows the evolutionary dynamics of inversion polymorphism to be explored. Such long time series are rare but nonetheless crucial for studying the evolutionary dynamics of inversion polymorphism. The population-genetic analysis discussed is unprecedented in terms of its temporal (two decades) and spatial (most regions of India covered) scale and investigates the patterns of polymorphic system in D. ananassae to see if there is any temporal divergence. It endeavors to present a holistic picture of inversion polymorphism across the country (India). Chromosomal aberrations, particularly paracentric inversions, are used as a tool for discussing population genetic studies, helping human geneticists, gynecologists and other medical professionals understand why some aberrations are fatal in humans, with affected embryos often not surviving the first trimester of pregnancy, while similar aberrations in Drosophila flies aid in their adaptation to the environmental heterogeneity across the globe.
Author: Jeffrey R. Powell
Publisher: Oxford University Press
ISBN: 019536032X
Category : Science
Languages : en
Pages : 577
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Book Description
This book focuses on drosophila as an especially useful model organism for exploring questions of evolutionary biology in the full range of evolutionary studies: population genetics, ecology, ecological genetics, speciation, phylogenetics, genome evolution, molecular evolution, and development. The author presents an integrated view of evolutionary biology as elucidated in this single organism. Special effort is made to point out holes in our knowledge and areas particularly ripe for new investigation.
Author: J.S.F. Barker
Publisher: Springer Science & Business Media
ISBN: 146848768X
Category : Science
Languages : en
Pages : 528
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Book Description
Ecological and evolutionary genetics span many disciplines and virtually all levels of biological investigation, from the genetic information itself to the principles governing the complex organization of living things. The ideas and informa tion generated by ecological and evolutionary genetics provide the substance for strong inferences on the origins, changes and patterns of structural and functional organization in bio logical communi ties. It is the coordination of these ideas and thoughts that will provide the answers to many fundamental questions in biology. There is no doubt that Drosophilids provide strong model systems amenable to experimental manipulation and useful for testing pertinent hypotheses in ecological and evolutionary genetics. The chapters in this volume represent efforts to use Drosophila species for such a purpose. The volume consists of a dedication to William B. Heed, followed by four major sections: Ecological Genetics, Habitat Selection, Biochemical Genetics and Molecular Evolution. Each section is introduced by a short statement, and each chapter has an independent summary. The chapters contain the sub stance of talks given at a joint Australia-US workshop held January 5-10, 1989 at the University of New England, New South Wales, Australia. We are indebted to the Division of International Programs of the National Science Foundation (USA) and to the Science and Technology Collaboration Section of the Department of Industry, Technology and Commerce (Australia) for the provi sion of financial support under the US/Australia Science and Technology Agreement. Many people contributed to the preparation of this volume.
Author:
Publisher: Jones & Bartlett Publishers
ISBN: 1449656269
Category :
Languages : en
Pages : 689
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Book Description
Author: Eliot B. Spiess
Publisher: Wiley-Interscience
ISBN:
Category : Science
Languages : en
Pages : 800
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Book Description
In this revised and updated edition of the comprehensive population genetics book, treatment extends basic genetic principles to the dynamics of genes and genotypes in groups of interbred individuals. Presents three points of view: evolutionary, quantitative, and medical/anthropological. Considers random mating, non-random mating, and evolutionary forces that can change gene and genotype frequencies over time. The impact of DNA sequencing is adressed and illustrative examples from the experimental literature are included.
Author: Masatoshi Nei
Publisher: Columbia University Press
ISBN: 9780231063210
Category : Computers
Languages : en
Pages : 526
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Book Description
-- "The Scientist"
Author: Masatoshi Nei
Publisher: North-Holland
ISBN:
Category : Science
Languages : en
Pages : 312
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Author: Brian Golding
Publisher: Springer Science & Business Media
ISBN: 1461523834
Category : Science
Languages : en
Pages : 261
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Book Description
All organisms--from the AIDS virus, to bacteria, to fish, to humans--must evolve to survive. Despite the central place of evolution within biology, there are many things that are still poorly understood. For Charles Darwin, the driving force behind all evolution was natural selection. More recently, evolutionary biologists have considered that many mutations are essentially neutral with respect to natural selection. Many questions remain. Are molecular differences between species adaptive? Are differences within species adaptive? Modern biotechnology has enabled us to identify precisely the actual DNA structure from many individuals within a population, and thus to see how these DNA sequences have changed over time and to answer some of these questions. At the same time, this knowledge poses new challenges to our ability to understand the observed patterns. This exciting volume outlines the biological problems, provides new perspectives on theoretical treatments of the consequences of natural selection, examines the consequences of molecular data, and relates molecular events to speciation. Every evolutionary biologist will find it of interest.
Author: Roger Milkman
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 424
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Book Description
Author: James Stuart Flinton Barker
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 386
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Book Description
