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Long-Range Control of Gene Expression covers the current progress in understanding the mechanisms for genomic control of gene expression, which has grown considerably in the last few years as insight into genome organization and chromatin regulation has advanced. Discusses the evolution of cis-regulatory sequences in drosophila Includes information on genomic imprinting and imprinting defects in humans Includes a chapter on epigenetic gene regulation in cancer
In 1906 Castle, Carpenter, Clarke, Mast, and Barrows published a paper entitled "The effects of inbreeding, cross-breeding, and selection upon the fertility and variability of Drosophila." This article, 55 pages long and published in the Proceedings of the Amer ican Academy, described experiments performed with Drosophila ampe lophila Lov, "a small dipterous insect known under various popular names such as the little fruit fly, pomace fly, vinegar fly, wine fly, and pickled fruit fly." This study, which was begun in 1901 and published in 1906, was the first published experimental study using Drosophila, subsequently known as Drosophila melanogaster Meigen. Of course, Drosophila was known before the experiments of Cas tles's group. The small flies swarming around grapes and wine pots have surely been known as long as wine has been produced. The honor of what was the first known misclassification of the fruit flies goes to Fabricius who named them Musca funebris in 1787. It was the Swedish dipterist, C.F. Fallen, who in 1823 changed the name of ~ funebris to Drosophila funebris which was heralding the beginning of the genus Drosophila. Present-day Drosophila research was started just 80 years ago and first published only 75 years ago. Even though the history of Drosophila research is short, the impact and volume of study on Drosophila has been tremendous during the last decades.
Scientific Frontiers in Developmental Toxicology and Risk Assessment reviews advances made during the last 10-15 years in fields such as developmental biology, molecular biology, and genetics. It describes a novel approach for how these advances might be used in combination with existing methodologies to further the understanding of mechanisms of developmental toxicity, to improve the assessment of chemicals for their ability to cause developmental toxicity, and to improve risk assessment for developmental defects. For example, based on the recent advances, even the smallest, simplest laboratory animals such as the fruit fly, roundworm, and zebrafish might be able to serve as developmental toxicological models for human biological systems. Use of such organisms might allow for rapid and inexpensive testing of large numbers of chemicals for their potential to cause developmental toxicity; presently, there are little or no developmental toxicity data available for the majority of natural and manufactured chemicals in use. This new approach to developmental toxicology and risk assessment will require simultaneous research on several fronts by experts from multiple scientific disciplines, including developmental toxicologists, developmental biologists, geneticists, epidemiologists, and biostatisticians.
Homology Effects offers contributions from an international panel of researchers whose aim has been both to introduce newcomers to the field of homology effects, and to bring colleagues up to date. Topic coverage includes dosage compensation, X-inactivation, imprinting, paramutation, homology-dependent gene silencing, transvection, pairing-sensitive silencing, nuclear organization of chromosomes, DNA repair, quelling, RIP, RNAi and antisense biology, homology effects in ciliates, prion biology, and a discourse on the evolution of gene duplications. Advances in Genetics presents an eclectic mix of articles of use to all human and molecular geneticists. They are written and edited by recognized leaders in the field and make this an essential series of books for anyone in the genetics field. - Homology, the examination of similarity due to shared common ancestry, encompasses a fascinating class of phenomena in mammals, plants, insects, ciliates, nematodes, fungi, and bacteria. Homology effects concern processes that recognize homology at the level of DNA and/or RNA, as well as at the level of protein. Their collective history begins at the turn of the century and includes some of the most puzzling and extraordinary observations in biology. The volume covers phenomena that have often been considered unusual, exceptional to the rule, and "out of the ordinary" and, therefore, not for general study. However, it is now becoming clear that taken together, these phenomena represent a class of regulatory mechanisms that are widespread, as well as exceptionally powerful.
Emphasis is placed on the elaborate cuticular matrices in insects and crustaceans, spider and insect silks, sialomes of phytophagous and blood-feeding arthropods as well as on secretions of male and female accessory glands. Focus is placed largely on insects, due to the extensive body of published research that in part is the result of available whole genome sequences of several model species (in particular Drosophila melanogaster) and accessible ESTs for other species. Such advances have facilitated fundamental insights into genomic, proteomic and molecular biology-based physiology. This new volume contains comprehensive contributions on extracellular composite matrices in arthropods. The building blocks of such matrices are formed in and secreted by single layered epithelial cells into exterior domains where their final assembly takes place.Additionally, the unique mechanical properties of natural biocomposites like chitin/chitosan, the crustacean mineralized exoskeleton, the pliant protein resilin or insect and spider silks, have inspired basic and applied research that yield sophistical biomimetics and structural biocomposite hybrids important for future industrial and biomedical use. In summary, this book provides an invaluable vast source of basic and applied information for a plethora of scientists as well as textbook for graduate and advanced undergraduate students.
This book focuses on drosophila as an especially useful model organism for exploring questions of evolutionary biology in the full range of evolutionary studies: population genetics, ecology, ecological genetics, speciation, phylogenetics, genome evolution, molecular evolution, and development. The author presents an integrated view of evolutionary biology as elucidated in this single organism. Special effort is made to point out holes in our knowledge and areas particularly ripe for new investigation.
Biology of Drosophila was first published by John Wiley and Sons in 1950. Until its appearance, no central, synthesized source of biological data on Drosophila melanogaster was available, despite the fly's importance to science for three decades. Ten years in the making, it was an immediate success and remained in print for two decades. However, original copies are now very hard to find. This facsimile edition makes available to the fly community once again its most enduring work of reference.
A second edition of the classic handbook has become a standard in the Drosophila field. This edition is expanded to include topics in which classical genetic strategies have been augmented with new molecular tools. Included are such new techniques as homologous recombination, RNAi, new mapping techniques, and new mosaic marking techniques.
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.
This open access volume presents state-of-the-art inference methods in population genomics, focusing on data analysis based on rigorous statistical techniques. After introducing general concepts related to the biology of genomes and their evolution, the book covers state-of-the-art methods for the analysis of genomes in populations, including demography inference, population structure analysis and detection of selection, using both model-based inference and simulation procedures. Last but not least, it offers an overview of the current knowledge acquired by applying such methods to a large variety of eukaryotic organisms. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, pointers to the relevant literature, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, Statistical Population Genomics aims to promote and ensure successful applications of population genomic methods to an increasing number of model systems and biological questions. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.