Polyploidy

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Polyploidy

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Author : Walter H. Lewis
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Polyploidy written by Walter H. Lewis and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Medical categories.

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.

Evolution And Biodiversity Of Wild Polyploids

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Author : Elvira Hörandl
language : en
Publisher: Frontiers Media SA
Release Date : 2021-09-28

Evolution And Biodiversity Of Wild Polyploids written by Elvira Hörandl and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-09-28 with Science categories.

Polyploid Population Genetics And Evolution From Theory To Practice

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Author : Hans D. Daetwyler
language : en
Publisher: Frontiers Media SA
Release Date : 2020-01-28

Polyploid Population Genetics And Evolution From Theory To Practice written by Hans D. Daetwyler and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-28 with categories.

Polyploidy And Hybridization For Crop Improvement

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Author : Annaliese Mason
language : en
Publisher: CRC Press
Release Date : 2016

Polyploidy And Hybridization For Crop Improvement written by Annaliese Mason and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with Crop improvement categories.

A Strategy of "Large Population, Strong Selection" Will Guarantee Success in Poplar Polyploid Breeding

Biogeography

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Author : C. Barry Cox
language : en
Publisher: John Wiley & Sons
Release Date : 2010-05-10

Biogeography written by C. Barry Cox and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-05-10 with Science categories.

Biologists searching for a resource that explores all of the exciting changes that have occurred recently in the field will turn to this eighth edition. It offers insight into the multidisciplinary nature of the field, presenting a sound historical base, up-to-date coverage, and a look at the latest controversies. The authors evaluate conflicting theories and provide a reasoned judgment as to which is preferable. In a new chapter the authors examine marine biogeography, so that biologists can compare and analyze the data, patterns and problems arising from continental, marine and island biogeography.

Polyploid And Hybrid Genomics

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Author : Z. Jeffrey Chen
language : en
Publisher: John Wiley & Sons
Release Date : 2013-04-05

Polyploid And Hybrid Genomics written by Z. Jeffrey Chen and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-05 with Science categories.

Polyploidy plays an important role in biological diversity, trait improvement, and plant species survival. Understanding the evolutionary phenomenon of polyploidy is a key challenge for plant and crop scientists. This book is made up of contributions from leading researchers in the field from around the world, providing a truly global review of the subject. Providing broad-ranging coverage, and up-to-date information from some of the world’s leading researchers, this book is an invaluable resource for geneticists, plant and crop scientists, and evolutionary biologists.

Lost Sex

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Author : Isa Schön
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-09-22

Lost Sex written by Isa Schön and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-09-22 with Science categories.

Sex is the queen of problems in evolutionary biology. Generations of researchers have investigated one of the last remaining evolutionary paradoxes: why sex exists at all. Given that sexual reproduction is costly from an evolutionary point of view, one could wonder why not all animals and plants reproduce asexually. Dozens of contemporary hypotheses attempt to explain the prevalence of sex and its advantages and predict the early extinction of fully asexual lineages. The major theme of this book is: what is the fate of animal and plant groups in which sex is lost? Initial chapters discuss theory behind asexual life: what major disadvantages do asexual groups have to face, what are the genetic and ecological consequences and what does this theory predict for more applied aspects of asexual life, for example in agricultural pests, diseases as well as in cultural crops such as grapes. Cases studies in many animals (focusing on both invertebrates and vertebrates) and plants reveal parallel, but also singularly novel adaptations to the absence of meiosis and syngamy. And last but not least, are asexuals really doomed to early extinction or do genuine ancient asexuals exist? This book assembles contributions from the most important research groups dealing with asexual evolution in eukaryotes. It is a milestone in research on parthenogenesis and will be useful to undergraduate as well as graduate students and to senior researchers in all fields of evolutionary biology, as the paradox of sex remains its queen of problems.

Genetics And Genomics Of Polyploid Plants

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Author : Jun Yang
language : en
Publisher: Frontiers Media SA
Release Date : 2019-10-15

Genetics And Genomics Of Polyploid Plants written by Jun Yang and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-10-15 with categories.

Genetics

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Author : Daniel L. Hartl
language : en
Publisher: Jones & Bartlett Learning
Release Date : 2009

Genetics written by Daniel L. Hartl and has been published by Jones & Bartlett Learning this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Medical categories.

This handbook covers all dimensions of breast cancer prevention, diagnosis, and treatment for the non-oncologist. A special emphasis is placed on the long term survivor.

Fertility And Chromosome Pairing

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Author : Christopher Bob Gillies
language : en
Publisher: CRC Press
Release Date : 1989-08-31

Fertility And Chromosome Pairing written by Christopher Bob Gillies and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989-08-31 with Medical categories.

This book discusses the nature of meiotic chromosome pairing effects which may play a role in the determination of fertility. In particular, data and illustrations from the application of recently developed electron microscopic spreading techniques will allow researchers in related fields to come to grips with the recent advances in the cytogenetics of meiotic chromosome pairing behavior. Topics dealt with include meiotic and synaptonemal complex behavior in humans and mice with a variety of chromosomal and genetic abnormalities, sex chromosome pairing in mammals and birds, the significance for fertility or pairing in mammals and birds, the significance for fertility of XY pairing and crossing over, the effects of hybridity on pairing and fertility in plants, and the genetic control of synaptonemal complex formation and crossing over in polyploids. This is a timely reference book for graduate level medical and veterinary students, and scientists in the field of genetics and cell biology.