Taxonomy and Genetics of Oenothera; Forty Years Study in the Cytology and Evolution of the Onagraceae; 7 PDF Download
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Author: R R (Reginald Ruggles) 1882 Gates
Publisher: Hassell Street Press
ISBN: 9781014240200
Category :
Languages : en
Pages : 124
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Book Description
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: R. Ruggles Gates
Publisher: Springer Science & Business Media
ISBN: 9401179417
Category : Science
Languages : en
Pages : 115
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Book Description
At the beginning of this century the mutation theory of evolution, based by HUGO DE VRIES on many years of culture experiments mainly with Oenothera Lamarckiana, took the world by storm when published in 1901. As early as 1889 DE VRIES had shown that various plant "monstrosities" are inherited. His breeding experi ments with other plants involved the rediscovery of MENDEL'S laws and the resuscitation of MENDEL'S breeding methods, which had been in abeyance in the long period from 1865 to 1900. MENDEL began his crossing experiments in 1854, DE VRIES began his Oeno thera cultures in 1886. The genus Oenothera was thus the first after Pisum to be the subject of extensive genetic experiments. Thus was introduced the method now so widely pursued. It may be remembered also that DE VRIES drew the distinction between fluctuations and mutations, but he regarded all fluctuations or continuous variations as non-heritable. Both can be equated with the continuous and discontinuous variations of BATESON. DE VRIES' conception of mutations corresponds with the "single variations" of DARWIN, except that he regarded each mutation as producing a new elementary species, now generally called microspe cies. He said in the introduction to his Mutationstheorie, that the characters of organisms are built up from units which are as sharply distinguished from each other as the molecules of chemistry. These units can be united into groups, and in related species of plants and animals the same units and groups are repeated.
Author: R R (Reginald Ruggles) 1882 Gates
Publisher: Hassell Street Press
ISBN: 9781014240200
Category :
Languages : en
Pages : 124
Get Book Here
Book Description
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: Reginald Ruggles Gates
Publisher:
ISBN:
Category :
Languages : en
Pages : 115
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Book Description
Author: R. Ruggles Gates
Publisher:
ISBN:
Category :
Languages : en
Pages : 115
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Book Description
Author: Donald Alexander Johansen
Publisher:
ISBN:
Category : Onagraceae
Languages : en
Pages : 512
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Book Description
Author: W. B. Turrill
Publisher: Elsevier
ISBN: 1483223655
Category : Nature
Languages : en
Pages : 337
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Book Description
Vistas in Botany, Volume 4: Recent Researchers in Plant Taxonomy covers some of the more important general aspects of plant taxonomy. This volume is composed of seven chapters that link the practice and theory of taxonomy to plant geography, ecology, pollen anatomy, embryology, genetics, and cytology. The opening chapter outlines the views on plant taxonomy classification, the relevance of these views to biological classification, and some of the problems of classification in the non-taxonomic fields of ecology, soil science, and librarianship. The succeeding chapter presents the classification of the spores in higher plants, the cormophytes. This topic is followed by discussions on the embryological characters of taxonomic significance and the interrelations of plant taxonomy, phytogeography, and plant ecology. The final chapters consider the taxonomic preparation of flora and plant fossils. This book will prove useful to taxonomists, botanists, ecologists, and scientists and researchers in the allied fields of botany.
Author: National Library of Medicine (U.S.)
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1350
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Book Description
First multi-year cumulation covers six years: 1965-70.
Author: Cornelia Harte
Publisher: Springer Science & Business Media
ISBN: 3642842860
Category : Science
Languages : en
Pages : 270
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Book Description
Because of the great variety of problems which this genus presents to biologists, Oenothera belongs to the best-known genera of plants not used economically. This book summarizes today's knowledge of Oenothera's genetics and related fields like caryology and cytogenetics. It is further of great value for all those whose research topics are based on genetics, such as developmental and evolutionary biology.
Author: National Library of Medicine (U.S.)
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1360
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Book Description
Includes subject section, name section, and 1968-1970, technical reports.
Author: Ralph Erskine Cleland
Publisher: Literary Licensing, LLC
ISBN: 9781258283834
Category : Chromosomes
Languages : en
Pages : 350
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Book Description
Additional Editor Is Harold J. Brodie. Additional Contributors Are Lucie-Blair Hodges Geckler, Charles W. Hagen, Jr., Bayard L. Hammond, Adolph Hecht, And Louise Brandau Preer. Indiana University Publications, Science Series No. 16.
