Author: Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 708
Book Description
Canadian Journal of Botany
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.
Flora of North America: Volume 27: Bryophytes: Mosses, Part 1
Author: Flora of North America Editorial CommitteePublisher:
ISBN:
Category : Nature
Languages : en
Pages : 748
Book Description
FNA presents for the first time, in one published reference source, information on the names, taxonomic relationships, continent-wide distributions, and morphological characteristics of all plants native and naturalized found in North America north of Mexico.
Flora of North America
Author: Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 746
Book Description
FNA presents for the first time, in one published reference source, information on the names, taxonomic relationships, continent-wide distributions, and morphological characteristics of all plants native and naturalized found in North America north of Mexico.
Bibliography of Agriculture
Author: Publications in Botany
Author: Robert R. IrelandPublisher: National Museum of National Sciences, National Museums of Canada
ISBN:
Category : Botany
Languages : en
Pages : 748
Book Description
Syesis
Author: Plant Biosystematics
Author: William F. GrantPublisher: Elsevier
ISBN: 1483273709
Category : Nature
Languages : en
Pages : 691
Book Description
Plant Biosystematics is a compendium of papers from a symposium titled "Plant Biosystematics: Forty Years Later" held in Montreal in July 1983. This collection reviews the current field of biosystematics, particularly the evolution of natural biota, and how plant biosystematics can contribute to the welfare of humans. One paper reviews biosystematics, compares new approaches, and discusses the latest trend in comparative, molecular evolution of genes. One author discusses the cytology and biosystematics concerning the discontinuities and genetic independence occurring in the evolutionary process. Another author discusses chromosome pairing in species and hybrids that includes models of chromosome pairing in diploids. The text also describes chromosome banding and biosystematics, as well as the problems of chromosome banding that should be addressed to in future research. With estimates of the number of species being threatened with extinction numbering around 20,000 one paper address the issue of conservation and biosystematics. The author suggests that more biological information should be published to avoid duplication of effort, and possibly drive scientists to have their views more widely felt. Agriculturists, botanists, conservationists, environmentalists, and researchers in the field of botany, conservation, and plant genealogy will find this book valuable.
Biological Notes
Author: Moss Flora of the Maritime Provinces
Author: Robert R. IrelandPublisher:
ISBN:
Category : Botany
Languages : en
Pages : 748
Book Description