Download e-book for kindle: Environment, Development, and Evolution: Toward a Synthesis by Brian K. Hall, Roy D. Pearson, Gerd B. Müller

By Brian K. Hall, Roy D. Pearson, Gerd B. Müller

ISBN-10: 0262083191

ISBN-13: 9780262083195

Evolutionary developmental biology, sometimes called evo-devo or EDB, seeks to discover hyperlinks among improvement and evolution by way of starting the "black field" of development's function in evolution and within the evolution of developmental mechanisms. In specific, this quantity emphasizes the jobs of our environment and of hormonal signaling in evo-devo. It brings jointly a bunch of best researchers to research the dynamic interplay of environmental elements with developmental and physiological procedures and to ascertain how environmental indications are translated into phenotypic swap, from the molecular and mobile point to organisms and teams of organisms. Taken jointly, those chapters show the the most important roles of these methods of genetic, developmental, physiological, and hormonal swap that underpin evolutionary swap in improvement, morphology, body structure, habit, and life-history.Part I investigates hyperlinks among environmental indications and developmental procedures which may be preserved over evolutionary time. numerous individuals evaluation the paintings of the overdue Ryuichi Matsuda, specially his emphasis at the position of the exterior setting in genetic swap and variability ("pan-environmentalism"). different individuals partly I examine assorted facets of environmental-genetic-evolutionary linkages, together with the significance of trade ontogenies in evolution and the anomaly of balance over lengthy classes of evolutionary time. half II examines the plasticity that characterizes a lot of improvement, with individuals discussing such themes as gene regulatory networks and heterochronicity. half III analyzes the function of hormones and metamorphosis in the evolution of such organisms with trade life-history phases as lampreys, amphibians, and bugs.

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Environment, Development, and Evolution: Toward a Synthesis - download pdf or read online

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Extra resources for Environment, Development, and Evolution: Toward a Synthesis (Vienna Series in Theoretical Biology)

Example text

Extreme acceleration resulted in metamorphoses, and saltatory, heterochronic modifications of metamorphoses could then produce new genera. According to Cope, differential “growth force,” which we now call “allometric growth,” could produce major alterations in the proportions of organisms. For example, because the growth of a giraffe’s neck and forequarters is accelerated, they become proportionately larger than the rest of the body, compared to the okapi type of the ancestral form. Action of the growth force also resulted in “repetitive addition,” as illustrated by duplication of the various building units of the body that had produced metameric segmentation in some protostome invertebrates (Cope, 1871).

With the Matsudan antidote, anticipated by Lamarck, monsters would be the numerous successful products of a nonrandom epigenetic process elicited by the existent environment, and their hopes would be far from forlorn. Regarding potential populations of such exotics, a founder effect would not apply, since all of the organisms subjected to environmental change would be altered, and the new population would not be limited to small numbers with only a fraction of the original gene pool (Matsuda, 1982; see also the postscript to this essay).

George Mivart and Jean-Baptiste Lamarck, it is actually to the work of another Frenchman, Étienne Geoffroy St. Hilaire, that Matsuda’s thought harkens back (see chapter 2 in this volume). It was Geoffroy who had suggested that environmental change could cause changes in development; this has earned him the title “father of evo-devo” (see Panchen, 2001). Recent studies in molecular genetics have corroborated Geoffroy’s view that what is ventral in invertebrates is dorsal in vertebrates (De Robertis and Sasai, 1996).

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Environment, Development, and Evolution: Toward a Synthesis (Vienna Series in Theoretical Biology) by Brian K. Hall, Roy D. Pearson, Gerd B. Müller


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