Darwin In The Genome

Smart genomes--an enthralling account of revolutionary discoveries at the cutting edge of genomics research Written by a molecular biologist at the forefront of genomics research, Darwin in the Genome is an exciting account of one of the hottest new theories in biology today: evolution by natural selection inevitably leads to strategic mutations. In the struggle for survival, from pathogens to flowers, birds to orangutans, baker's yeast to people, the fittest genomes are those that evolve effective molecular strategies that respond to, and in fact anticipate, challenges and opportunities in their environments. Writing in a clear, accessible style, Lynn Caporale describes the emergence of genomic mutation strategies, which researchers are just beginning to uncover. She also spells out some of the more profound implications of these findings, including the importance of biodiversity, indeed human diversity, for survival, the possibility of bold new directions for medical research, and the inherent dangers of attempting to fix perceived "errors" in a human genome.

The mystery of inheritance has captivated thinkers since antiquity, and the unlocking of this mystery—the development of classical genetics—is one of humanity’s greatest achievements. This great scientific and human drama is the story told fully and for the first time in this book. Acclaimed science writer James Schwartz presents the history of genetics through the eyes of a dozen or so central players, beginning with Charles Darwin and ending with Nobel laureate Hermann J. Muller. In tracing the emerging idea of the gene, Schwartz deconstructs many often-told stories that were meant to reflect glory on the participants and finds that the “official” version of discovery often hides a far more complex and illuminating narrative. The discovery of the structure of DNA and the more recent advances in genome science represent the culmination of one hundred years of concentrated inquiry into the nature of the gene. Schwartz’s multifaceted training as a mathematician, geneticist, and writer enables him to provide a remarkably lucid account of the development of the central ideas about heredity, and at the same time bring to life the brilliant and often eccentric individuals who shaped these ideas. In the spirit of the late Stephen Jay Gould, this book offers a thoroughly engaging story about one of the oldest and most controversial fields of scientific inquiry. It offers readers the background they need to understand the latest findings in genetics and those still to come in the search for the genetic basis of complex diseases and traits.

The 200th anniversary of Darwin’s birthday was celebrated in 2009, making the concept of Darwinism even more popular than at the time it was originally proposed, to the extent that it has acquired quasi-religious status. His theory revolves around a Tree of Life in which all living organisms are considered to have descended from a single ancestor, and each node represents a common ancestor. It comprises hierarchy and dichotomy, which are typical characteristics of the post-biblical 19th century vision. Indeed, according to post-modern philosophy (also called the French theory) the majority of theories, including scientific ones, are based only on meta-narratives expressing the influence of a culture at a given time. Buddhism or Hinduism may have generated a very different story of evolution. Our way of thinking about life, and the way we describe evolution, have changed radically in the 21st century due to the genomic revolution. Comparative genome analyses have demonstrated that gene repertoires are characterized by plasticity, and there is strong evidence that nearly all genes have been exchanged at some point. Genomic data show that the genetic information of living organisms is inherited not only vertically but also laterally. Lateral gene transfers were at first observed only in bacteria, which contain genes originating from eukaryotes, Archaea and viruses. Such transfers were subsequently identified in all living organisms; giant viruses have chimeric genomes and the human genome is a mosaic of genes with eukaryotic, bacterial, and viral origins. We cannot identify a single common ancestor for the gene repertoire of any organism. Furthermore, a very high proportion of genes have been newly created through gene fusion or degradation, and others show no homology to sequences found in other species. It is now clear that every living organism has a variety of ancestors, while exchanges between species are intense, and the creation of new genes is frequent and permanent in all living organisms. Our current genomic knowledge contradicts the tree of life theory, as established by Darwin. Recent analyses have produced bushes rather than resolved trees, with the structure of some parts remaining elusive. It becomes more and more obvious that phylogenetic relationships are better described by forests and networks and that species evolution looks more like a rhizome. The chimerism and mosaic structure of all living organisms through both non-vertical inheritance and de novo creation can only be assimilated and described by a post-Darwinist concept. In this Research Topic we wish to highlight the influence of microbiology and genomics on our understanding of the complexity of gene repertoires, and also demonstrate how current knowledge does not support Darwin’s theory. Microbiology has offered a great advance in the way we perceive life. Evidence obtained from studies on bacterial and viral evolution, lateral inheritance, phylogenetic trees and biodiversity continues to challenge what constituted, until recently, an unimpeded dogma in biology.

Change and necessity is a statement of Darwinian natural selection as a process driven by chance necessity, devoid of purpose or intent.

Do our genes determine our behavior? Do humans occupy a unique position in evolution? To clarify these provoking questions, the author takes the reader on an ambitious and entertaining journey through a variety of scientific disciplines. In doing so, he creates an image of human evolution that argues that our entire individual knowledge is determined - to the smallest detail - by phylogeny. A provoking and controversial analysis of the theory of our inability to learn something new and of the extent to which our behavior is determined by our genes.

This book examines the toxicological and health implications of environmental epigenetics and provides knowledge through an interdisciplinary approach. Included in this volume are chapters outlining various environmental risk factors such as phthalates and dietary components, life states such as pregnancy and ageing, hormonal and metabolic considerations and specific disease risks such as cancer cardiovascular diseases and other non-communicable diseases. Environmental Epigenetics imparts integrative knowledge of the science of epigenetics and the issues raised in environmental epidemiology. This book is intended to serve both as a reference compendium on environmental epigenetics for scientists in academia, industry and laboratories and as a textbook for graduate level environmental health courses. Environmental Epigenetics imparts integrative knowledge of the science of epigenetics and the issues raised in environmental epidemiology. This book is intended to serve both as a reference compendium on environmental epigenetics for scientists in academia, industry and laboratories and as a textbook for graduate level environmental health courses.

Based on the New Hall of Human Origins in the American Museum of Natural History which opens in November 2006, Bones, Brains and DNA takes the young reader to the cutting edge of science, exploring and examining the tools by which we study our origins. Covering the milestones in evolution, global migration and how we became human through the invention of language, music, art and technology.

The idea of mutation has changed considerably from the pre-Mendelian concepts of Darwin's generation to today's up-to-the-minute genomic context of mutation. The historical approach taken by History of Mutation reveals the way science works, incrementally by small steps rather than by dramatic, and rare, paradigm shifts.