5 edition of evolution of asexual reproduction in plants found in the catalog.
Includes bibliographical references (p. -265) and indexes.
|LC Classifications||QK826 .M64 1992|
|The Physical Object|
|Pagination||xiv, 276 p. :|
|Number of Pages||276|
|LC Control Number||91041024|
Sexual reproduction was an early evolutionary innovation after the appearance of eukaryotic cells. It appears to have been very successful because most eukaryotes are able to reproduce sexually, and in many animals, it is the only mode of reproduction. In asexual reproduction, part of the parent plant is used to generate a new plant. Grafting, layering, and micropropagation are some methods used for artificial asexual reproduction. The new plant is genetically identical to the parent plant from which the stock has been taken. Asexually reproducing plants thrive well in stable environments.
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Asexual reproduction thus does not require one egg-producing parent and one sperm-producing parent. A single parent is all that is required. Sporulation (the formation of spores) is one method of asexual reproduction among protozoa and certain plants. A spore is a reproductive cell that produces a new organism without fertilization. One of the central issues of evolutionary ecology is the study of trade-offs between life-history components. In this context, the effect of alternative reproductive modes and genetic variation on trade-offs has attracted the attention of evolutionary biologists for many years (Maynard Smith ; Nunney and Keller ).Because of the overwhelming predominance of sexual reproduction .
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Evolution of Asexual Reproduction in Plants nd Edition by M. Mogie (Author) ISBN ISBN Why is ISBN important. ISBN. This bar-code number lets you verify that you're getting exactly the right version or edition of a book. The digit and digit formats both : $ About this book Asexual reproduction is found in many taxonomic groups and considerable effort has been directed by biologists towards understanding its mechanisms, evolution and ecological significance.
This title offers a thought-provoking and novel contribution to this debate. Prologue --Patterns of Reproduction in Bryophytes and Tracheophytes --The costs, Benefits and Constraints of Asexual Reproduction in Plants --Cosexuality, Asexuality and the Male Function --The Genetic Control of Apomixis --At the Court of the Red Queen --Reflections.
Responsibility: Michael Mogie. More information: Table of contents. Stems. In some species, stems arch over and take root at their tips, forming new plants. Figure Strawberry stolon.
The horizontal above-ground stems (called stolons) of the strawberry (shown here) produce new daughter plants at alternate nodes. Underground stems such as rhizomes, bulbs, corms and tubers are used for asexual reproduction as well as for food.
The different forms of asexual reproduction in plants (modified from ). Cell. Mol. Life Sci. Vol, Review Article produced can stay attached to the mother plant. Plant somatic cells have the remarkable ability to regenerate an entire organism. Many species in the genus Kalanchoë, known as “mother of thousands,” develop plantlets on the leaf margins.
Using key regulators of organogenesis (STM) and embryogenesis (LEC1 and FUS3) processes, we analyzed asexual reproduction in Kalanchoë leaves. Plant somatic cells have the remarkable ability to regenerate an entire organism. Many species in the genus Kalanchoë, known as “mother of thousands,” develop plantlets on the leaf key regulators of organogenesis (STM) and embryogenesis (LEC1 and FUS3) processes, we analyzed asexual reproduction in Kalanchoë ssion of STM.
There are a few major ways in which plants asexually reproduce in their life cycles to secure future generations. New plants can grow by the separation of parts of the original plant.
When fragmentation, or division, occurs, an offspring is created by the breakup of a single part of the plant. Bacteria reproduce means that, when a bacteria cell splits, both halves of the split are identical -- they contain exactly the same DNA.
The offspring is a clone of the parent. As explained in How Human Reproduction Works, higher organisms like plants, insects and animals reproduce sexually, and this process makes the actions of evolution.
Since sexual reproduction is more conducive to driving evolution than asexual reproduction, much more genetic diversity is available for natural selection to work on.
Evolution can happen over time. When asexual organisms evolve, they typically do so very quickly after a sudden mutation and do not require multiple generations to accumulate.
Evolution, 55(8),pp. – THE IMPORTANCE OF SEXUAL AND ASEXUAL REPRODUCTION IN THE RECENT EVOLUTION OF ALLIUM VINEALE ALF CEPLITIS1 Department of Genetics, Lund University, So¨lvega SE 62 Lund, Sweden Abstract.
In the weedy plant species Allium vineale (wild garlic), individuals may simultaneously produce. () The Evolution of Asexual Reproduction in Plants (Chapman & Hall, London).
Gustafsson A (–) Lunds Universitets Årsskrift 42– 1 – Most plants can reproduce both sexually and asexually (or vegetatively), and the balance between the two reproductive modes may vary widely between and within species. Extensive clonal growth may affect the evolution of life history traits in many ways.
First, in some clonal species, sexual reproduction and sex ratio vary largely among populations. Discuss plant life spans. Many plants are able to propagate themselves using asexual reproduction.
This method does not require the investment required to produce a flower, attract pollinators, or find a means of seed dispersal. Asexual reproduction produces plants that are genetically identical to the parent plant because no mixing of male and female gametes takes place.
Many plants reproduce asexually as well as sexually. In asexual reproduction, part of the parent plant is used to generate a new plant. Grafting, layering, and micropropagation are some methods used for artificial asexual reproduction. The new plant is genetically identical to the parent plant from which the stock has been taken.
Since the first edition of this book, several theoretical developments have clarified the population genetics consequences of the different breeding systems, and empirical evidences have been accumulating, partly changing our view of breeding system evolution and consequences, especially for asexual organisms.
In this article we will discuss about the asexual and sexual modes of reproduction in plants and animals. Sexual Reproduction in Plants and Animals: The mode of reproduction which involves the formation of male and female gametes either by the same individuals or by different individuals of opposite sex is known as sexual reproduction.
The evolution of sexual reproduction is an adaptive feature which is common to almost all multi-cellular organisms (and also some single-cellular organisms) with many being incapable of reproducing to the advent of sexual reproduction, the adaptation process whereby genes would change from one generation to the next (genetic mutation) happened.
Asexual reproduction in plants can take place by natural methods or artificial methods. Natural methods include strategies used by the plant to propagate itself. Artificial methods include grafting, cutting, layering, and micropropagation. Discuss the life cycles of various plants.
Evolution of Sexual Reproduction in Plants. Acronym EVOREPRO; Duration 36; Project leader Becker, Jörg (PL), Portugal, I Gulbenkian de Ciencia; Other project participants Gutierrez-Marcos, Jose, UK, U Warwick Twell, David, UK, U of Leicester. A central fact for genome evolution, however, is that apomixis in angiosperms is rarely obligate.
Apomictic plants produce asexual and sexual progeny within the same offspring generation, i.e., from different ovules and seeds in the same mother plant, and therefore asexuality is facultative.Many plants are capable of reproducing both asexually and sexually.
Asexual reproduction occurs in a variety of ways, including production of rhizomes (horizontal underground stems), runners (aboveground stems that run along the ground), and suckers (vertical stems that arise from the base of stumps or existing stems).Plant - Plant - Asexual reproduction: Both homosporous and heterosporous life histories may exhibit various types of asexual reproduction (vegetative reproduction, somatic reproduction).
Asexual reproduction is any reproductive process that does not involve meiosis or the union of nuclei, sex cells, or sex organs. Depending on the type of life history, asexual reproduction .