"When the molecular processes of epigenetics meet the ecological processes of phenotypic plasticity, the result is a revolutionary new field: ecological developmental biology, or "eco-devo." This new science studies development in the "real world" of predators, pathogens, competitors, symbionts, toxic compounds, temperature changes, and nutritional differences. These environmental agents can result in changes to an individual's phenotype, often implemented when signals from the environment elicit epigenetic changes in gene expression. Ecological developmental biology is a truly integrative biology, detailing the interactions between developing organisms and their environmental contexts. Ecological developmental biology also provides a systems approach to the study of pathology, integrating the studies of diabetes, cancers, obesity, and the aging syndrome into the framework of an ecologically sensitive developmental biology. It looks at examples where the environment provides expected cues for normal development and where the organism develops improperly without such cues. Data from research on teratology, endocrine disruptors, and microbial symbioses, when integrated into a developmental context, may have enormous implications for human health as well as the overall health of Earth's ecosystems. The study of epigenetics--changes in gene expression that are not the result of changes in a gene's DNA sequence--has recently provided startling insights not only into mechanisms of development, but also into the mechanisms and processes of evolution. The notion that epialleles (changes in chromosome structure that alter gene expression) can be induced by environmental agents and transmitted across generations has altered our notions of evolution, as have new experiments documenting the genetic fixation of environmentally induced changes in development. The widespread use of symbiosis in development provides new targets for natural selection. Ecological developmental biology integrates these new ideas into an extended evolutionary synthesis that retains and enriches the notion of evolution by natural selection."--Publisher's description.
This book presents the data for ecological developmental biology, integrating it into new accounts of medicine, evolution, and embryology.
Contents: 1.
Developmental Biology
Several new hypotheses and models are presented in this volume, and these concern how homology may be properly delineated, how neural crest and placode cells emerged and how they formed the skull and jaw, and how plasticity and ...
Covering more than 50 central terms and concepts in entries written by leading experts, this book offers an overview of this new subdiscipline of biology, providing the core insights and ideas that show how embryonic development relates to ...
In particular, this volume emphasizes the roles of the environment and of hormonal signaling in evo-devo.
Images of Development questions the dominant biological approach of explaining animal development as entirely genetic by exploring the explanatory value of investigating environmental influences.
Contents: Sting Journalism: Introduction, Forms and Features, Sting Journalism: Ethics, Methods and Hidden Cameras, Sting Operations: Current Perspective, Famous Investigative Journalists and Scandals, Sting Operations in Indian ...
This volume reviews current research findings and thought in the broad field of evo-devo, looking at the developmental genetic mechanisms that cause variation and how alterations of these mechanisms can generate novel structural changes in ...
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.