Apomixis

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Apomixis in Plants

Author : Lenn Jerling
Publisher : Routledge
ISBN 13 : 1351466305
Total Pages : 324 pages
Book Rating : 4.3/5 (514 download)

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Book Synopsis Apomixis in Plants by : Lenn Jerling

Download or read book Apomixis in Plants written by Lenn Jerling and published by Routledge. This book was released on 2017-11-22 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Apomixis in Plants presents a comprehensive review of different aspects of asexual seed formation in plants. This is important in plant research since apomixis could greatly facilitate breeding in important crops. It is also interesting theoretically because it carries problems related to genetic variation and evolution to its extreme. The book features a broad selection of topics, including a historical review of ideas and landmarks in the field; comparisons with other types of asexual reproduction in higher plants and with related phenomena in animals and related plants; a presentation of cytology and embryology of apomicts and the diversified terminology in the field; views on the genetic background of apomixis and environmental effects on its expression; and the interrelation between apomixis and other traits. Additional topics covered include classical and modern theories of sexual versus asexual reproduction; geographical and taxonomical trends in apomicts; ecological implications of apomixis, and a review of future possibilities for using apomixis in plant breeding. Apomixis in Plants is an important reference volume for researchers and students in all areas of botany, ecology, and plant breeding.

The Flowering of Apomixis

Author : Yves Savidan
Publisher : CIMMYT
ISBN 13 : 9789706480743
Total Pages : 260 pages
Book Rating : 4.4/5 (87 download)

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Book Synopsis The Flowering of Apomixis by : Yves Savidan

Download or read book The Flowering of Apomixis written by Yves Savidan and published by CIMMYT. This book was released on 2001 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Apomixis in Angiosperms

Author : Diego Hojsgaard
Publisher : CRC Press
ISBN 13 : 1000624013
Total Pages : 498 pages
Book Rating : 4.0/5 (6 download)

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Book Synopsis Apomixis in Angiosperms by : Diego Hojsgaard

Download or read book Apomixis in Angiosperms written by Diego Hojsgaard and published by CRC Press. This book was released on 2022-08-19 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Apomixis is a difficult-to-analyse trait with a complex molecular basis and a substantive effect on the biology of a species. Thus, apomixis is an interesting characteristic for researchers and students working in different fields of plant science and agriculture, and technological advances are enabling and making apomixis studies more common. Apomixis in Angiosperms: Mechanisms, Occurrences, and Biotechnology provides a systematic introduction to the mechanisms and developmental types of apomixis along with an overview of alternative methodologies for identifying apomixis and a detailed reassessment of the occurrences of apomictic species among angiosperm families. Optional methods are illustrated with examples of all types of apomixis and biological levels of analysis, i.e. cells, ovules, seeds and offspring. Data on apomictic species are collected in tables along with information on ploidy, type of apomixis and references. Occurrences of apomixis are briefly discussed in phylogenetic and evolutionary contexts. An outline of the molecular basis of apomixis in plants is presented, together with prospects and challenges that remain for its biotechnological exploitation. This book: Provides a systematic overview of the mechanisms of apomixis, developmental types and methodology for apomixis research. Reassesses apomixis at the species level in angiosperm families. Contains tables summarizing relevant information on apomixis. Analyses occurrences of apomixis in phylogenetic and evolutionary contexts. Outlines the molecular basis and biotechnological perspective of apomixis breeding. This book presents an accessible overview of apomixis research and a curated dataset of apomictic species. It serves as a reference book for students, researchers and citizen scientists interested in apomixis, as well as researchers, business innovators and entrepreneurs pursuing apomixis breeding. It can also be used as a textbook in graduate courses on plant reproduction.

Apomixis in Angiosperms

Author : Tamara N. Naumova
Publisher : CRC Press
ISBN 13 : 9780849345708
Total Pages : 160 pages
Book Rating : 4.3/5 (457 download)

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Book Synopsis Apomixis in Angiosperms by : Tamara N. Naumova

Download or read book Apomixis in Angiosperms written by Tamara N. Naumova and published by CRC Press. This book was released on 1992-11-18 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Apomixis in Angiosperms: Nucellar and Integumentary Embryony is based on original cytoembryological data and critically reviewed literature on more than 250 species from 57 families of angiosperms. The book covers the complete process of nucellar and integumentary embryo formation and viable seed development within species, families, and among angiosperms in general. Many species (some of which are economically important) characterized by adventive embryony are listed. The book also provides an original simple classification of apomixis and offers a new approach to differentiating embryological structures in cases of apomixis and amphimixis. Apomixis in Angiosperms: Nucellar and Integumentary Embryony will be a useful reference for embryologists, botanists, cytologists, geneticists, and plant breeders. It will also benefit any researcher interested in studying somatic embryo formation in tissue culture.

Apomixis in Angiosperms

Author : Tamara N. Naumova
Publisher : CRC Press
ISBN 13 : 1351086650
Total Pages : 152 pages
Book Rating : 4.3/5 (51 download)

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Book Synopsis Apomixis in Angiosperms by : Tamara N. Naumova

Download or read book Apomixis in Angiosperms written by Tamara N. Naumova and published by CRC Press. This book was released on 2018-01-10 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Apomixis in Angiosperms: Nucellar and Integumentary Embryony is based on original cytoembryological data and critically reviewed literature on more than 250 species from 57 families of angiosperms. The book covers the complete process of nucellar and integumentary embryo formation and viable seed development within species, families, and among angiosperms in general. Many species (some of which are economically important) characterized by adventive embryony are listed. The book also provides an original simple classification of apomixis and offers a new approach to differentiating embryological structures in cases of apomixis and amphimixis. Apomixis in Angiosperms: Nucellar and Integumentary Embryony will be a useful reference for embryologists, botanists, cytologists, geneticists, and plant breeders. It will also benefit any researcher interested in studying somatic embryo formation in tissue culture.

Hybridization of Crop Plants

Author : Henry Hultman Hadley
Publisher : American Society of Agronomy
ISBN 13 :
Total Pages : 850 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Hybridization of Crop Plants by : Henry Hultman Hadley

Download or read book Hybridization of Crop Plants written by Henry Hultman Hadley and published by American Society of Agronomy. This book was released on 1980 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Apomixis

Author : Gurdev S. Khush
Publisher : Int. Rice Res. Inst.
ISBN 13 : 9712200647
Total Pages : 86 pages
Book Rating : 4.7/5 (122 download)

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Book Synopsis Apomixis by : Gurdev S. Khush

Download or read book Apomixis written by Gurdev S. Khush and published by Int. Rice Res. Inst.. This book was released on 1994 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Apomixis for rice improvement; Transferring apomixis to maize; Transfer of alien chromosome-carrying gene for apomixis to cultived pennisetum; Cytological mechanisms of apospory and diplospory; Genetics of apomixis mechanisms; Embryo and flower development in rice and apomixis in Chinese chive (Allium tuberosum); Modifying embryo sac development and strategies for cloning the apomixis gene from buffelgrass; Molecular markers for apomixis in Pennisetum; Using Arabidopsis in the analysis of megaspore development; Developmental genetics of floral patterning in Arabidopsis thaliana; Isolating apomictic mutnats in Arabidopsis thaliana - prospects adn progess.

Molecular Basis of Apomixis in Plants

Author : Diego Hojsgaard
Publisher : MDPI
ISBN 13 : 3036515089
Total Pages : 300 pages
Book Rating : 4.0/5 (365 download)

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Book Synopsis Molecular Basis of Apomixis in Plants by : Diego Hojsgaard

Download or read book Molecular Basis of Apomixis in Plants written by Diego Hojsgaard and published by MDPI. This book was released on 2021-09-08 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Apomixis is the consequence of a concerted mechanism that harnesses the sexual machinery and coordinates developmental steps in the ovule to produce an asexual (clonal) seed. Altered sexual developments involve widely characterized functional and anatomical changes in meiosis, gametogenesis, and embryo and endosperm formation. The ovules of apomictic plants skip meiosis and form unreduced female gametophytes whose egg cells develop into a parthenogenetic embryo, and the central cells may or may not fuse to a sperm to develop the seed endosperm. Thus, functional apomixis involves at least three components, apomeiosis, parthenogenesis, and endosperm development, modified from sexual reproduction that must be coordinated at the molecular level to progress through the developmental steps and form a clonal seed. Despite recent progress uncovering specific genes related to apomixis-like phenotypes and the formation of clonal seeds, the molecular basis and regulatory network of apomixis is still unknown. This is a central problem underlying the current limitations of apomixis breeding. This book collates twelve publications addressing different topics around the molecular basis of apomixis, illustrating recent discoveries and advances toward understanding the genetic regulation of the trait, discussing the possible origins of apomixis and the remaining challenges for its commercial deployment in plants.

Embryology of Angiosperms

Author : B. M. Johri
Publisher : Springer Science & Business Media
ISBN 13 : 3642693024
Total Pages : 850 pages
Book Rating : 4.6/5 (426 download)

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Book Synopsis Embryology of Angiosperms by : B. M. Johri

Download or read book Embryology of Angiosperms written by B. M. Johri and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thirty-four years have elapsed since the publication of the late Professor P. Maheshwari's text, An Introduction to the Embryology of Angiosperms, a work which for many years served as an invaluable guide for students and a rich source book for research workerso Various texts dealing with sections of the braad spectrum oftopics encompassed by Maheshwari in his book have appeared in the interim, but a compendious modem work dealing with the whole field has been lacking. This present volume splendidly meets the need, and it is altogether fitting that Professor B. M. lohri, long an associate and close colleague of Professor Maheshwari and himself a prolific contributor to the subject, should have undertaken the task of editing it. When Maheshwari wrote, it was stiIl feasible for one author to handIe the subject, but today even someone with his fine bread th of vision and depth of understanding could not, alone, do it justice. So the effort has to be a collaborative one; and Professor lohri's achievement has been to bring together a team of authoritative collaborators, assign them their responsibilities, and put them to work to produce a text as integrated in its treatment as the diversity of the subject would allow. The product vividly illustrates the advances that have been made in the study of angiosperm reproductive systems in the last 30 years, and the book is surely destined to become the new standard for student and researcher alike.

Plant Development and Evolution

Author :
Publisher : Academic Press
ISBN 13 : 0128098058
Total Pages : 660 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Plant Development and Evolution by :

Download or read book Plant Development and Evolution written by and published by Academic Press. This book was released on 2019-01-04 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant Development and Evolution, the latest release in the Current Topics in Developmental Biology series, highlights new advances in the field, with this new volume presenting interesting chapters on the Evolution of the plant body plan, Lateral root development and its role in evolutionary adaptation, the Development of the vascular system, the Development of the shoot apical meristem and phyllotaxis, the Evolution of leaf diversity, the Evolution of regulatory networks in land plants, The role of programed cell death in plant development, the Development and evolution of inflorescence architecture, the Molecular regulation of flower development, the Pre-meiotic another development, and much more. Provides the authority and expertise of leading contributors from an international board of authors Presents the latest release in the Current Topics in Developmental Biology series Updated release includes the latest information on Plant Development and Evolution

Lost Sex

Author : Isa Schön
Publisher : Springer Science & Business Media
ISBN 13 : 904812770X
Total Pages : 617 pages
Book Rating : 4.0/5 (481 download)

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Book Synopsis Lost Sex by : Isa Schön

Download or read book Lost Sex written by Isa Schön and published by Springer Science & Business Media. This book was released on 2009-09-22 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Biotechnology and the Politics of Plants

Author : Matt Hodges
Publisher : Routledge
ISBN 13 : 100040336X
Total Pages : 167 pages
Book Rating : 4.0/5 (4 download)

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Book Synopsis Biotechnology and the Politics of Plants by : Matt Hodges

Download or read book Biotechnology and the Politics of Plants written by Matt Hodges and published by Routledge. This book was released on 2021-04-13 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biotechnology and the Politics of Plants explores the mysterious phenomenon of ‘apomixis’, the ability of certain plants to ‘self-clone’, and its potential as a revolutionary tool for agriculture and enhancing food security, that may soon be a reality. Through historical anthropological and ethnographic study, Matt Hodges traces the development of the CIMMYT Apomixis Project, a prominent frontier research initiative, and its reinvention as a leading public-private partnership. He analyzes the fast-moving historical transition from public sector, mixed plant breeding approaches grounded in genetics, to a contemporary era of agricultural biotechnology and genomics where PPPs are a leading format, and explores how social contexts of research shape how knowledge is produced, as well as what remains ‘unknown’, and constrain the development of an ‘Apomixis Technology’. The chapters present an inventive approach informed by the anthropology of time, science and technology studies, and dialogue with the work of Gilles Deleuze, Paul Rabinow, Hannah Arendt, Andrew Pickering, and Eduardo Viveiros de Castro. Hodges outlines novel ways of integrating notions of history and becoming, and considers how apomixis offers up an alternative image of thought to theoretical concepts such as the well-known ‘rhizome’. The book makes a valuable contribution to both the growing social scientific literature on genomics and biotechnology, and recent anthropological debates on time and history.

Cytogenetics

Author : P. K. Gupta
Publisher : Rastogi Publications
ISBN 13 : 9788171337378
Total Pages : 436 pages
Book Rating : 4.3/5 (373 download)

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Book Synopsis Cytogenetics by : P. K. Gupta

Download or read book Cytogenetics written by P. K. Gupta and published by Rastogi Publications. This book was released on 2007 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Somaclonal Variation and Induced Mutations in Crop Improvement

Author : S.M. Jain
Publisher : Springer Science & Business Media
ISBN 13 : 9780792348627
Total Pages : 644 pages
Book Rating : 4.3/5 (486 download)

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Book Synopsis Somaclonal Variation and Induced Mutations in Crop Improvement by : S.M. Jain

Download or read book Somaclonal Variation and Induced Mutations in Crop Improvement written by S.M. Jain and published by Springer Science & Business Media. This book was released on 1998-05-31 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic variability is an important parameter for plant breeders in any con ventional crop improvement programme. Very often the desired variation is un available in the right combination, or simply does not exist at all. However, plant breeders have successfully recombined the desired genes from cultivated crop gerrnplasm and related wild species by sexual hybridization, and have been able to develop new cultivars with desirable agronomie traits, such as high yield, disease, pest, and drought resistance. So far, conventional breeding methods have managed to feed the world's ever-growing population. Continued population growth, no further scope of expanding arable land, soil degradation, environ mental pollution and global warrning are causes of concern to plant biologists and planners. Plant breeders are under continuous pressure to improve and develop new cultivars for sustainable food production. However, it takes several years to develop a new cultivar. Therefore, they have to look for new technologies, which could be combined with conventional methods to create more genetic variability, and reduce the time in developing new cultivars, with early-maturity, and improved yield. The first report on induced mutation of a gene by HJ. Muller in 1927 was a major mi1estone in enhancing variation, and also indicated the potential applica tions of mutagenesis in plant improvement. Radiation sources, such as X-rays, gamma rays and fast neutrons, and chemical mutagens (e. g. , ethyl methane sulphonate) have been widely used to induce mutations.

Seed Genomics

Author : Philip W. Becraft
Publisher : John Wiley & Sons
ISBN 13 : 1118525515
Total Pages : 294 pages
Book Rating : 4.1/5 (185 download)

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Book Synopsis Seed Genomics by : Philip W. Becraft

Download or read book Seed Genomics written by Philip W. Becraft and published by John Wiley & Sons. This book was released on 2013-01-15 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This up-to-date review of seed genomics, from basic seed biology to practical applications in crop science, provides a thorough background understanding of seed biology from a basic science perspective. A valuable resource for advanced graduate students, post-docs, researchers and professionals in the Plant and Crop Sciences, this book brings together top researchers in the field to cover three general themes: genomic approaches to studying seeds, genomic analysis of basic seed biology, and crop seed genomics. A valuable resource for advanced graduate students, post-docs, researchers and professionals in the Plant and Crop Sciences

Apomixis

Author : Elvira Hörandl
Publisher : Gantner Publishing
ISBN 13 :
Total Pages : 432 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Apomixis by : Elvira Hörandl

Download or read book Apomixis written by Elvira Hörandl and published by Gantner Publishing. This book was released on 2007 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Apomixis (asexual reproduction without fertilisation) is no longer regarded as a 'blind alley' of evolution, but rather as an alternative mechanism to the predominant sexual pathway, and that needs to be explored in many details to fully understand its role in nature.

Brachiaria

Author : John W. Miles
Publisher : CIAT
ISBN 13 : 9789589439579
Total Pages : 306 pages
Book Rating : 4.4/5 (395 download)

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Book Synopsis Brachiaria by : John W. Miles

Download or read book Brachiaria written by John W. Miles and published by CIAT. This book was released on 1996 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Identifying and naming Brachiaria species. Morphology, taxonomy, and natural distribution of Brachiaria (Trin.) Griseb. Natural variation in Brachiaria and existing germplasm collections. The agronomy and physiology of Brachiaria species. National requirementes of Brachiaria and adaptation to acid soils. Nutrient cycling and environmental impact of Brachiaria Pastures. Pests and diseases of Brachiaria species. Nutritional quality and animal production of Brachiaria pastures. Reproductive physiology, seed production, and seed quality of Brachiaria. Seed production: perspective from the Brazilian private sector. Genetic, cytogenetics, and reproductive biology of Brachiaria. Manipulation of apomixis in Brachiaria breeding. Theoretical potential of biotechniques in crop improvement. Aplication of biothecnology to Brachiaria. Regional experience with Brachiaria: Tropical America-humid lowlands. Regional experience with Brachiaria: Tropical America-savannas. Regional experience with Brachiaria: Sub-savannas Africa. Regional experience with Brachiaria: Asia, the South Pacific, and Australia. Reports of working groups.