The Investigation Of The Genetic Structure Of Populations
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The Investigation Of The Genetic Structure Of Populations
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Author : Bruce Wallace
language : en
Publisher:
Release Date : 1961
The Investigation Of The Genetic Structure Of Populations written by Bruce Wallace and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Genetics categories.
Investigation Of The Genetic Structure Of Populations Progress Report January 1 1975 December 31 1975
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Author :
language : en
Publisher:
Release Date : 1975
Investigation Of The Genetic Structure Of Populations Progress Report January 1 1975 December 31 1975 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with categories.
This report deals with a number of topics among which are the following: Gene control regions: a manuscript is appended which argues for the presence of a reverse repeat DNA segment following many, if not most, gene loci. Studies on the scute locus: techniques are described by which crossovers in or very near the scute locus can be obtained selectively and, should any of these depart from the ''normal'' scute phenotype, by which the gametes produced by the abnormal male can be characterized in respect to the scute phenotype. The utilization of sugars by geographic strains of D. melanogaster: a survey of some 35 geographic strains of D. melanogaster and eight sugars (and other carbohydrates) has revealed a tremendous variation among the strains in respect to their ability to utilize (or not be inhibited by) these sugars.
Investigation Of The Genetic Structure Of Populations Third Year Summary Review January 1 1975 December 31 1975
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Author :
language : en
Publisher:
Release Date : 1975
Investigation Of The Genetic Structure Of Populations Third Year Summary Review January 1 1975 December 31 1975 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with categories.
This portion of report COO-3149-5 is a ''third year'' review of past accomplishments. Among other research items discussed are the possible structure of gene-control regions, intra- and inter-specific competition, laboratory island biogeography, studies on the utilization of various sugars by different geographic strains of Drosophila melanogaster, and a reassessment of the concepts of hard and soft selection.
Population Genetics
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Author : W.J. Ewens
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-12
Population Genetics written by W.J. Ewens 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 2013-03-12 with Science categories.
Population genetics is the mathematical investigation of the changes in the genetic structure of populations brought about by selection, mutation, inbreeding, migration, and other phenomena, together with those random changes deriving from chance events. These changes are the basic components of evolutionary progress, and an understanding of their effect is therefore necessary for an informed discussion of the reasons for and nature of evolution. It would, however, be wrong to pretend that a mathematical theory, depending as it must on a large number of simplifying assump tions, should be accepted unreservedly and that its conclusions should be accepted uncritically. No-one would pretend that in the event of disagreement between observation and mathematical prediction, the discrepancy is due to anything other than the inadequacy of the mathematical treatment. The biological world is, of course, far too complex for the study of population genetics to be simply a branch of applied mathematics, so that while we are concerned here with the mathematical theory, I have tried to indicate which of our results should continue to apply in a context wider than that in which they are formally derived. The difficulties involved in the joint discussions of mathematical and genetical problems are obvious enough. I have tried to aim this book rather more at the mathematician than at the geneticist, and for this reason a brief glossary of common genetical terms is included.
Genetic Structure And Local Adaptation In Natural Insect Populations
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Author : Susan Mopper
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-17
Genetic Structure And Local Adaptation In Natural Insect Populations written by Susan Mopper 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 2013-04-17 with Science categories.
Providing an essential foundation for evolutionary theory, this comprehensive volume examines patterns of genetic variation within natural insect populations, and explores the underlying mechanisms that lead to the genetic divergence of coexisting organisms. In particular, the text investigates current research on finescale genetic structure in natural insect populations. Internationally renowned scientists offer a wealth of current information not previously published. Part I present case studies of adaptive genetic structure in natural insect populations, including a critical discussion of the strenghts and weaknesses of the experimental methods employed. Part II addresses the ecological mechanisms that produce adaptive genetic structure in natural insect populations. Part III describes how behavioral and life-history patterns influence genetic structure. Finally, Part IV combines theoretical and empirical approaches linking genetic structure at the population level with larger-scale patterns of variation, such as host race formation and speciation. This broad-ranging, interdisciplinary source of information supplies a thorough examination of the mechanisms that promote and impede genetic structure in natural insect populations. It is a book that will be of interest to undergraduate and graduate students, and to researchers in the fields of ecology, evolution, insect and plant systems, entomology, and population genetics.
The Genetic Structure Of Populations
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Author : Albert Jacquard
language : en
Publisher: Springer
Release Date : 1974
The Genetic Structure Of Populations written by Albert Jacquard and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with Science categories.
It is part of the ideology of science that it is an international enterprise, carried out by a community that knows no barriers of nation or culture. But the reality is somewhat different. Despite the best intentions of scientists to form a single community, unseparated by differences of national and political viewpoint, they are, in fact, separated by language. Scientific literature in German is not generally assimilated by French workers, nor that appearing in French by those whose native language is English. The problem appears to have become more severe since the last war, because the ascendance of the United States as the preeminent economic power led, in a time of big and expensive science, to a pre dominance of American scientific production and a growing tendency (at least among English-speakers) to regard English as the international language of science. International congresses and journals of world circulation have come more and more to take English as their standard or official language. As a result, students and scientific workers in the English speaking world have become more linguistically parochial than ever before and have been cut off from a considerable scientific literature. Population genetics has been no exception to the rule. The elegant and extremely innovative theoreticaI work of Malecot, for example, is only now being properly assimilated by population biologists outside France. It was therefore with some sense of frustration that I read Prof.
Genealogical Genetic Structure
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Author : C. Cannings
language : en
Publisher: Cambridge University Press
Release Date : 1981-11-26
Genealogical Genetic Structure written by C. Cannings and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981-11-26 with Mathematics categories.
Although the long-term processes of evolution are selection and mutation, the infrastructure of a population is a no less important force in determining the distributions of genetic characteristics observable within populations. In small populations, and in particular in human populations, complex patterns of genealogical relationship between individuals can be an important factor in the maintenance of genetic variability. The aim of this book is to develop the quantitative theory of the interrelationship between the genealogical and the genetic structures of a population. Aspects of other structural features, such as migration patterns, are also discussed, but are not central to the development. There are three major aspects; each comprises two chapters of the text. First, genealogical relationships are characterized in a way which can illuminate their genetic consequences. Second, the evolutionary aspects of genealogical structure are developed. Finally, the last two chapters present methods of characterizing the complete structure of a genealogy, and of computing relevant parameters of genealogical structure; these topics are of relevance to genetic epidemiology as well as to population genetics.
Population Structure And Human Variation
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Author : G. A. Harrison
language : en
Publisher: Cambridge University Press
Release Date : 1977-08-11
Population Structure And Human Variation written by G. A. Harrison and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977-08-11 with Science categories.
This volume is a collection of eleven studies conducted during the International Biological Programme on the biological structure of human populations.
Surnames And Genetic Structure
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Author : Gabriel Ward Lasker
language : en
Publisher: Cambridge University Press
Release Date : 1985-06-13
Surnames And Genetic Structure written by Gabriel Ward Lasker and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985-06-13 with Language Arts & Disciplines categories.
This book presents a lucid description and evaluation of these studies of the genetic structure of human populations.
Characterizing The Genetic Structure Of Populations
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Author :
language : en
Publisher:
Release Date : 2004
Characterizing The Genetic Structure Of Populations written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
The ability to characterize the genetic structure of populations continues to be central to all aspects of population and quantitative genetics, and measures based on correlations of pairs of alleles continue to be as relevant now as they were when discussed by Wright in 1951. The need to develop methodology for the characterization of the genetic structure of natural populations, especially of humans, has increased with recent large-scale disease association studies. We have proposed various estimators for population structure measure Fst, such as the moment estimator, the Kappa type estimator and the likelihood estimator. The likelihood estimates based on assumed normality of allele frequencies over populations have proven difficult to obtain in practice. Maximum likelihood estimates based on the Dirichlet distribution will provide a more robust framework, in spite of the implicit assumptions for that distribution not applying to microsatellite markers. The behavior of moment and MLE estimates in different scenarios were explored. Another population specific Fst estimator was proposed using GEE2 method. The proposed method yielded consistent results which are demonstrated via simulations.