Genetic Basis of Morphological Variation PDF Download

Author: Richard H. Osborne
Publisher:
ISBN:
Category : Human genetics
Languages : en
Pages : 0

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Author: Richard Hazelet Osborne
Publisher: Harvard University Press
ISBN:
Category : Family & Relationships
Languages : en
Pages : 248

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"The study reported here explores the possibilities of investigating the important question of genetic and environmental interaction by genetic methods utilizing the techniques of morphological description and measurement. The complex nature of man's genetic variation and some of the problems which are unique to human studies are reviewed. The twin method is then evaluated, within the context of our understanding of the phenomenon of human twinning, for its usefulness in detecting genetic variability and analyzing genetic and environmental interaction. With this background, the twin method is then applied to the study of different descriptions and measurements of morphological variation. Because this is a preliminary study, emphasis has been placed upon the methods of investigation and upon providing an empirical basis for the application of genetic and morphological studies to different human problems. It is hoped that the methods presented here and the results of this analysis will suggest further twin research and morphological studies in genetics, anthropology, and the medical sciences. While the present study was designed for the analysis of genetic and environmental effects on what may be termed "normal" morphological variation, selection of the subjects on the basis of medical histories and examinations has made it possible to extend considerably the scope of the investigation. Most of the data relating to medical information have been reported elsewhere. Those aspects which have a bearing on the evaluation of the twin method or the analysis of morphological variables are reported here. Extensive data available from the records of the Columbia-Presbyterian Medical Center also have been incorporated. The Twin Study Project was carried out under the auspices of the Institute for the Study of Human Variation in Columbia University, and was conducted within the facilities of the Columbia-Presbyterian Medical Center. The collection of the data was started in September 1952 with a poll of all new admissions to Vanderbilt Clinic, for twins; it was completed in March 1956"--Preface. (PsycINFO Database Record (c) 2010 APA, all rights reserved).

Author: Richard H. Osborne
Publisher:
ISBN: 9780758154675
Category :
Languages : en
Pages : 204

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Author: Richard Horsley Osborne
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Author: Toshio Sekimura
Publisher: Springer
ISBN: 9811049564
Category : Science
Languages : en
Pages : 321

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This book facilitates an integrative understanding of the development, genetics and evolution of butterfly wing patterns. To develop a deep and realistic understanding of the diversity and evolution of butterfly wing patterns, it is essential and necessary to approach the problem from various kinds of key research fields such as “evo-devo,” “eco-devo,” ”developmental genetics,” “ecology and adaptation,” “food plants,” and “theoretical modeling.” The past decade-and-a-half has seen a veritable revolution in our understanding of the development, genetics and evolution of butterfly wing patterns. In addition, studies of how environmental and climatic factors affect the expression of color patterns has led to increasingly deeper understanding of the pervasiveness and underlying mechanisms of phenotypic plasticity. In recognition of the great progress in research on the biology, an international meeting titled “Integrative Approach to Understanding the Diversity of Butterfly Wing Patterns (IABP-2016)” was held at Chubu University, Japan in August 2016. This book consists of selected contributions from the meeting. Authors include main active researchers of new findings of corresponding genes as well as world leaders in both experimental and theoretical approaches to wing color patterns. The book provides excellent case studies for graduate and undergraduate classes in evolution, genetics/genomics, developmental biology, ecology, biochemistry, and also theoretical biology, opening the door to a new era in the integrative approach to the analysis of biological problems. This book is open access under a CC BY 4.0 license.

Author: Joseph Sidney Weiner
Publisher: Taylor & Francis Group
ISBN:
Category : Science
Languages : en
Pages : 210

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Author: Timothy A. Mousseau
Publisher: Oxford University Press
ISBN: 019512183X
Category : Science
Languages : en
Pages : 276

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Patterns of adaptation in the past and the genetic basis of traits likely to be under selection in the dynamically changing environment are also discussed in relation to these responses.".

Author: Wallace Arthur
Publisher: John Wiley & Sons
ISBN:
Category : Evolution
Languages : en
Pages : 300

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Author: G. Richard Scott
Publisher: Cambridge University Press
ISBN: 1316805719
Category : Social Science
Languages : en
Pages : 432

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All humans share certain components of tooth structure, but show variation in size and morphology around this shared pattern. This book presents a worldwide synthesis of the global variation in tooth morphology in recent populations. Research has advanced on many fronts since the publication of the first edition, which has become a seminal work on the subject. This revised and updated edition introduces new ideas in dental genetics and ontogeny and summarizes major historical problems addressed by dental morphology. The detailed descriptions of 29 dental variables are fully updated with current data and include details of a new web-based application for using crown and root morphology to evaluate ancestry in forensic cases. A new chapter describes what constitutes a modern human dentition in the context of the hominin fossil record.

Author: Rodney Mauricio
Publisher: Springer Science & Business Media
ISBN: 1402038364
Category : Science
Languages : en
Pages : 209

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An enduring controversy in evolutionary biology is the genetic basis of adaptation. Darwin emphasized "many slight differences" as the ultimate source of variation to be acted upon by natural selection. In the early 1900’s, this view was opposed by "Mendelian geneticists", who emphasized the importance of "macromutations" in evolution. The Modern Synthesis resolved this controversy, concluding that mutations in genes of very small effect were responsible for adaptive evolution. A decade ago, Allen Orr and Jerry Coyne reexamined the evidence for this neo-Darwinian view and found that both the theoretical and empirical basis for it were weak. Orr and Coyne encouraged evolutionary biologists to reexamine this neglected question: what is the genetic basis of adaptive evolution? In this volume, a new generation of biologists have taken up this challenge. Using advances in both molecular genetic and statistical techniques, evolutionary geneticists have made considerable progress in this emerging field. In this volume, a diversity of examples from plant and animal studies provides valuable information for those interested in the genetics and evolution of complex traits.