Author: William Campbell SteerePublisher:
ISBN:
Category : Chromosomes
Languages : en
Pages : 74
Book Description
Chromosome Studies on California Mosses
Author: William Campbell SteerePublisher:
ISBN:
Category : Chromosomes
Languages : en
Pages : 74
Book Description
Chromosome Studies on California Mosses
Author: William Campbell SteerePublisher:
ISBN:
Category : Chromosomes
Languages : en
Pages : 74
Book Description
Chromosome Studies on Some Mosses of the Southeastern United States
Author: Matti Al-AishCalifornia Mosses
Author: William McLagan MalcolmPublisher:
ISBN:
Category : Mosses
Languages : en
Pages : 440
Book Description
Chromosome Studies of Wild Populations of American Mosses
Author: William Campbell SteerePublisher:
ISBN:
Category :
Languages : en
Pages : 8
Book Description
Chromosome Studies of Some Mosses of the Douglas Lake Region
Author: Chromosome Studies in Relation to the Systematic Position of Certain Mosses
Author: Emily Virginia Schmitt BryanPublisher:
ISBN:
Category : Chromosomes
Languages : en
Pages :
Book Description
Chromosome Studies on Mosses from Austria, Chechoslovakia and Other Parts of Central Europe
Author: Virginia S. BryanEvolutionary Biology
Author: Max HechtPublisher: Springer Science & Business Media
ISBN: 1461569834
Category : Science
Languages : en
Pages : 480
Book Description
Evolutionary Biology, of which this is the nineteenth volume, continues to offer its readers a wide range of original articles, reviews, and com mentaries on evolution, in the broadest sense of that term. The topics of the reviews range from anthropology and behavior to molecular biology and systematics. In recent volumes, a broad spectrum of articles have appeared on such subjects as natural selection among replicating molecules in vitro, mate recognition and the reproductive behavior in Drosophila, evolution of the monocotyledons, species selection, and the communication net work made possible among even distantly related genera of bacteria by plasmids and other transposable elements. Articles such as these, often too long for standard journals, are the stuff of Evolutionary Biology. The editors continue to solicit manuscripts on an international scale in an effort to see that everyone of the many facets of biological evolution is covered. Manuscripts should be sent to anyone of the following: Max K. Hecht, Department of Biology, Queens College of the City University of New York, Flushing, New York 11367; Bruce Wallace, Department of Biology, Virginia Polytechnic Institute and State University, Blacks burg, Virginia 24061; Ghillian T. Prance, New York Botanical Garden, Bronx, New York 10458. The Editors vII Contents 1. Discontinuous Processes in the Evolution of the Bacterial Genome ........................................ 1 Monica Riley Introduction ............................... ,........ 1 Internal Rearrangements ............................... 2 Large-Scale Internal Rearrangements . . . . . . . . . . . . . . . . . . . . 2 Small-Scale Rearrangements: Divergence of Duplicate Genes ......................................... 11 Interactions between Two Genomes ...................... 20 Transposons: Jumping Genes . . . . . . . . . . . . . . . . . . . . 20 . . . . . . Plasmids: Incorporation into Genomic DNA. . . . . . . . . . .. . . 23 .
Polyploidy
Author: Walter H. LewisPublisher: Springer Science & Business Media
ISBN: 1461330696
Category : Medical
Languages : en
Pages : 576
Book Description
Polyploidy as a dramatic mutational event in the process of evolution has wide implications in nature and for the generation of new and improved crops. The three day Conference on POLYPLOIDY: BIOLOGICAL RELEVANCE focused on three aspects of this natural phenomenon: the first emphasized the characteristics of polyploidy, the second described the occurrence of polyploidy among plants and animals, and the third considered past and future areas of both fundamental and pragmatic research that involve polyploidy. New information relative to origin, cytogenetics, ecology, physiology, biochemistry, and populational studies stress the need to reexamine current views on the origins of polyploidy and its significance among both plants and animals. There are major differences in the occurrence of polyploidy between. plant groups and it is proving a much more common event among bisexual vertebrates than heretofore considered possible. Crop development and improvement must utilize approaches based fundamentally on more natural systems; in fact future research should focus more on polyploidy as a natural phenomenon that needs study at all levels of endeavor from field-oriented populational aspects to sophisticated molecular analyses and genome manipulations. This volume provides a summary of current knowledge of polyploidy pertinent to botanists, zoologists, and agriculturists who are interested in the evolution o~natural systems and who are concerned with the contribution that crop improvement can make to human well-being. Walter H. Lewis St. Louis, Missouri October, 1979 v ACKNOWLEDGMENTS The Host Committee thanks all speakers and moderators for their generous contribution to the Conference and to this volume.