Biological Relevance

  • Walter H. Lewis

Part of the Basic Life Sciences book series (BLSC, volume 13)

Table of contents

  1. Front Matter
    Pages i-xii
  2. Polyploidy in Plant Evolution

    1. Front Matter
      Pages 1-1
    2. J. M. J. deWet
      Pages 3-15
    3. R. C. Jackson, Jane Casey
      Pages 17-44
    4. Friedrich Ehrendorfer
      Pages 45-60
    5. Moshe Tal
      Pages 61-75
    6. Walter H. Lewis
      Pages 103-144
    7. Walter H. Lewis
      Pages 145-147
  3. Polyploidy in Plant Taxa

    1. Front Matter
      Pages 149-149
    2. H. Wayne Nichols
      Pages 151-161
    3. James Maniotis
      Pages 163-192
    4. W. H. Wagner Jr., Florence S. Wagner
      Pages 199-214
    5. T. Delevoryas
      Pages 215-218
    6. Peter Goldblatt
      Pages 219-239
    7. Walter H. Lewis
      Pages 241-268
    8. John E. Averett
      Pages 269-273
  4. Polyploidy in Animal Evolution

    1. Front Matter
      Pages 275-275
    2. Juhani Lokki, Anssi Saura
      Pages 277-312
    3. R. Jack Schultz
      Pages 313-340
    4. Owen J. Sexton
      Pages 379-381
  5. Polyploidy in Agriculture

    1. Front Matter
      Pages 383-383
    2. Arne Müntzing
      Pages 409-426
    3. G. Kimber, E. R. Sears
      Pages 427-443
    4. E. T. Bingham
      Pages 471-489
    5. Keith A. Walker
      Pages 491-492
  6. Polyploidy: Future Prospects

    1. Front Matter
      Pages 493-493
    2. G. Ledyard Stebbins
      Pages 495-520
    3. Workshop Reports

      1. Bruce Carr, George Johnson
        Pages 521-528
      2. Virginia Walbot, Roger N. Beachy, Meng-Chao Yao
        Pages 529-535
      3. G. Kimber, E. R. Sears
        Pages 543-544
  7. Back Matter
    Pages 545-583

About this book


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.


development evolution evolutionary significance genetics physiology

Editors and affiliations

  • Walter H. Lewis
    • 1
  1. 1.Washington UniversitySt. LouisUSA

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