Introduction to Theoretical Population Genetics

Introduction to Theoretical Population Genetics PDF Author: Thomas Nagylaki
Publisher: Springer Science & Business Media
ISBN: 364276214X
Category : Science
Languages : en
Pages : 381

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Book Description
This book covers those areas of theoretical population genetics that can be investigated rigorously by elementary mathematical methods. I have tried to formulate the various models fairly generally and to state the biological as sumptions quite explicitly. I hope the choice and treatment of topics will en able the reader to understand and evaluate detailed analyses of many specific models and applications in the literature. Models in population genetics are highly idealized, often even over idealized, and their connection with observation is frequently remote. Further more, it is not practicable to measure the parameters and variables in these models with high accuracy. These regrettable circumstances amply justify the use of appropriate, lucid, and rigorous approximations in the analysis of our models, and such approximations are often illuminating even when exact solu tions are available. However, our empirical and theoretical limitations justify neither opaque, incomplete formulations nor unconvincing, inadequate analy ses, for these may produce uninterpretable, misleading, or erroneous results. Intuition is a principal source of ideas for the construction and investigation of models, but it can replace neither clear formulation nor careful analysis. Fisher (1930; 1958, pp. x, 23-24, 38) not only espoused similar ideas, but he recognized also that our concepts of intuition and rigor must evolve in time. The book is neither a review of the literature nor a compendium of results. The material is almost entirely self-contained. The first eight chapters are a thoroughly revised and greatly extended version of my published lecture notes (Nagylaki, 1977a).

Introduction to Theoretical Population Genetics

Introduction to Theoretical Population Genetics PDF Author: Thomas Nagylaki
Publisher: Springer Science & Business Media
ISBN: 364276214X
Category : Science
Languages : en
Pages : 381

Get Book Here

Book Description
This book covers those areas of theoretical population genetics that can be investigated rigorously by elementary mathematical methods. I have tried to formulate the various models fairly generally and to state the biological as sumptions quite explicitly. I hope the choice and treatment of topics will en able the reader to understand and evaluate detailed analyses of many specific models and applications in the literature. Models in population genetics are highly idealized, often even over idealized, and their connection with observation is frequently remote. Further more, it is not practicable to measure the parameters and variables in these models with high accuracy. These regrettable circumstances amply justify the use of appropriate, lucid, and rigorous approximations in the analysis of our models, and such approximations are often illuminating even when exact solu tions are available. However, our empirical and theoretical limitations justify neither opaque, incomplete formulations nor unconvincing, inadequate analy ses, for these may produce uninterpretable, misleading, or erroneous results. Intuition is a principal source of ideas for the construction and investigation of models, but it can replace neither clear formulation nor careful analysis. Fisher (1930; 1958, pp. x, 23-24, 38) not only espoused similar ideas, but he recognized also that our concepts of intuition and rigor must evolve in time. The book is neither a review of the literature nor a compendium of results. The material is almost entirely self-contained. The first eight chapters are a thoroughly revised and greatly extended version of my published lecture notes (Nagylaki, 1977a).

The Origins of Theoretical Population Genetics

The Origins of Theoretical Population Genetics PDF Author: William B. Provine
Publisher: University of Chicago Press
ISBN: 022678892X
Category : Science
Languages : en
Pages : 224

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Book Description
Tracing the development of population genetics through the writings of such luminaries as Darwin, Galton, Pearson, Fisher, Haldane, and Wright, William B. Provine sheds light on this complex field as well as its bearing on other branches of biology.

Theoretical Population Genetics

Theoretical Population Genetics PDF Author: J.S. Gale
Publisher: Springer Science & Business Media
ISBN: 9400903871
Category : Science
Languages : en
Pages : 428

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Book Description
The rise of the neutral theory of molecular evolution seems to have aroused a renewed interest in mathematical population genetics among biologists, who are primarily experimenters rather than theoreticians. This has encouraged me to set out the mathematics of the evolutionary process in a manner that, I hope, will be comprehensible to those with only a basic knowledge of calculus and matrix algebra. I must acknowledge from the start my great debt to my students. Equipped initially with rather limited mathematics, they have pursued the subject with much enthusiasm and success. This has enabled me to try a number of different approaches over the years. I was particularly grateful to Dr L. J. Eaves and Professor W. E. Nance for the opportunity to give a one-semester course at the Medical College of Virginia, and I would like to thank them, their colleagues and their students for the many kindnesses shown to me during my visit. I have concentrated almost entirely on stochastic topics, since these cause the greatest problems for non-mathematicians. The latter are particularly concerned with the range of validity of formulae. A sense of confidence in applying these formulae is, almost certainly, best gained by following their derivation. I have set out proofs in fair detail, since, in my experience, minor points of algebraic manipulation occasionally cause problems. To avoid loss of continuity, I have sometimes put material in notes at the end of chapters.

Theoretical Aspects of Population Genetics. (MPB-4), Volume 4

Theoretical Aspects of Population Genetics. (MPB-4), Volume 4 PDF Author: Motoo Kimura
Publisher: Princeton University Press
ISBN: 0691210098
Category : Science
Languages : en
Pages : 233

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Book Description
To show the importance of stochastic processes in the change of gene frequencies, the authors discuss topics ranging from molecular evolution to two-locus problems in terms of diffusion models. Throughout their discussion, they come to grips with one of the most challenging problems in population genetics--the ways in which genetic variability is maintained in Mendelian populations. R.A. Fisher, J.B.S. Haldane, and Sewall Wright, in pioneering works, confirmed the usefulness of mathematical theory in population genetics. The synthesis their work achieved is recognized today as mathematical genetics, that branch of genetics whose aim is to investigate the laws governing the genetic structure of natural populations and, consequently, to clarify the mechanisms of evolution. For the benefit of population geneticists without advanced mathematical training, Professors Kimura and Ohta use verbal description rather than mathematical symbolism wherever practicable. A mathematical appendix is included.

Mathematical Population Genetics 1

Mathematical Population Genetics 1 PDF Author: Warren J. Ewens
Publisher: Springer Science & Business Media
ISBN: 9780387201917
Category : Science
Languages : en
Pages : 448

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Book Description
This is the first of a planned two-volume work discussing the mathematical aspects of population genetics with an emphasis on evolutionary theory. This volume draws heavily from the author’s 1979 classic, but it has been revised and expanded to include recent topics which follow naturally from the treatment in the earlier edition, such as the theory of molecular population genetics.

Population Genetics and Microevolutionary Theory

Population Genetics and Microevolutionary Theory PDF Author: Alan R. Templeton
Publisher: John Wiley & Sons
ISBN: 0470047216
Category : Science
Languages : en
Pages : 720

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Book Description
The advances made possible by the development of molecular techniques have in recent years revolutionized quantitative genetics and its relevance for population genetics. Population Genetics and Microevolutionary Theory takes a modern approach to population genetics, incorporating modern molecular biology, species-level evolutionary biology, and a thorough acknowledgment of quantitative genetics as the theoretical basis for population genetics. Logically organized into three main sections on population structure and history, genotype-phenotype interactions, and selection/adaptation Extensive use of real examples to illustrate concepts Written in a clear and accessible manner and devoid of complex mathematical equations Includes the author's introduction to background material as well as a conclusion for a handy overview of the field and its modern applications Each chapter ends with a set of review questions and answers Offers helpful general references and Internet links

Modern Developments in Theoretical Population Genetics

Modern Developments in Theoretical Population Genetics PDF Author: Montgomery Slatkin
Publisher: Oxford University Press on Demand
ISBN: 9780198599630
Category : Mathematics
Languages : en
Pages : 264

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Book Description
This book contains chapters by leading population genetics that summarize many of the recent developments in population genetics theory and its application to genetic data. The book was inspired by a meeting in honour of the late French population geneticist, Gustave Malecot, held at the Ecole Normale Superieure in Paris, France, in the summer of 1999. Malecot was, along with R.A. Fisher, J.B.S. Haldane, and S. Wright, among the founders of theoretical population genetics. The meeting demonstrated both the great interest in Malecot's work and its relevance to the recent development of the theory of coalescents and the application of that theory to genetic variation observed at the level of DNA sequence. The introductory papers in the book review Malecot's life and his contributions to the theory of population genetics. Later chapters present recent developments in population genetics with particular emphasis on the theory of coalescents. They include discussions of methods for inferring past changes in population size and patterns of genetic exchange, for inferring the ages of individual mutations, and for analysing the relationships among closely linked genes.

Population Genetics, Molecular Evolution, and the Neutral Theory

Population Genetics, Molecular Evolution, and the Neutral Theory PDF Author: Motoo Kimura
Publisher: University of Chicago Press
ISBN: 9780226435633
Category : Science
Languages : en
Pages : 736

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Book Description
One of this century's leading evolutionary biologists, Motoo Kimura revolutionized the field with his random drift theory of molecular evolution—the neutral theory—and his groundbreaking theoretical work in population genetics. This volume collects 57 of Kimura's most important papers and covers forty years of his diverse and original contributions to our understanding of how genetic variation affects evolutionary change. Kimura's neutral theory, first presented in 1968, challenged the notion that natural selection was the sole directive force in evolution. Arguing that mutations and random drift account for variations at the level of DNA and amino acids, Kimura advanced a theory of evolutionary change that was strongly challenged at first and that eventually earned the respect and interest of evolutionary biologists throughout the world. This volume includes the seminal papers on the neutral theory, as well as many others that cover such topics as population structure, variable selection intensity, the genetics of quantitative characters, inbreeding systems, and reversibility of changes by random drift. Background essays by Naoyuki Takahata examine Kimura's work in relation to its effects and recent developments in each area.

Theories of Population Variation in Genes and Genomes

Theories of Population Variation in Genes and Genomes PDF Author: Freddy Bugge Christiansen
Publisher: Princeton University Press
ISBN: 0691165890
Category : Science
Languages : en
Pages : 431

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Book Description
This textbook provides an authoritative introduction to both classical and coalescent approaches to population genetics. Written for graduate students and advanced undergraduates by one of the world's leading authorities in the field, the book focuses on the theoretical background of population genetics, while emphasizing the close interplay between theory and empiricism. Traditional topics such as genetic and phenotypic variation, mutation, migration, and linkage are covered and advanced by contemporary coalescent theory, which describes the genealogy of genes in a population, ultimately connecting them to a single common ancestor. Effects of selection, particularly genomic effects, are discussed with reference to molecular genetic variation. The book is designed for students of population genetics, bioinformatics, evolutionary biology, molecular evolution, and theoretical biology--as well as biologists, molecular biologists, breeders, biomathematicians, and biostatisticians. Contains up-to-date treatment of key areas in classical and modern theoretical population genetics Provides in-depth coverage of coalescent theory Discusses genomic effects of selection Gives examples from empirical population genetics Incorporates figures, diagrams, and boxed features throughout Includes end-of-chapter exercises Speaks to a wide range of students in biology, bioinformatics, and biostatistics

Some Mathematical Models from Population Genetics

Some Mathematical Models from Population Genetics PDF Author: Alison Etheridge
Publisher: Springer Science & Business Media
ISBN: 3642166318
Category : Mathematics
Languages : en
Pages : 129

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Book Description
This work reflects sixteen hours of lectures delivered by the author at the 2009 St Flour summer school in probability. It provides a rapid introduction to a range of mathematical models that have their origins in theoretical population genetics. The models fall into two classes: forwards in time models for the evolution of frequencies of different genetic types in a population; and backwards in time (coalescent) models that trace out the genealogical relationships between individuals in a sample from the population. Some, like the classical Wright-Fisher model, date right back to the origins of the subject. Others, like the multiple merger coalescents or the spatial Lambda-Fleming-Viot process are much more recent. All share a rich mathematical structure. Biological terms are explained, the models are carefully motivated and tools for their study are presented systematically.