Molecular Basis Of Apomixis In Plants


Molecular Basis Of Apomixis In Plants
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Molecular Basis Of Apomixis In Plants


Molecular Basis Of Apomixis In Plants
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Author : Diego Hojsgaard
language : en
Publisher: MDPI
Release Date : 2021-09-08

Molecular Basis Of Apomixis In Plants written by Diego Hojsgaard and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-09-08 with Science categories.


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.



Molecular Basis Of Apomixis In Plants


Molecular Basis Of Apomixis In Plants
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Author : Diego Hojsgaard
language : en
Publisher:
Release Date : 2021

Molecular Basis Of Apomixis In Plants written by Diego Hojsgaard and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.


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 regulatorynetwork 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.



Apomixis In Flowering Plants


Apomixis In Flowering Plants
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Author : Thammineni Pullaiah
language : en
Publisher: CRC Press
Release Date : 2022-07

Apomixis In Flowering Plants written by Thammineni Pullaiah and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-07 with Science categories.


"Apomixis is a difficult-to-analyze 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, 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 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. Features: A systematic overview of the mechanisms of apomixis and methodology for apomixis research. A reassessment of apomixis at the species level in angiosperm families. 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"--



Genetic And Molecular Basis Of Plant Pathogenesis


Genetic And Molecular Basis Of Plant Pathogenesis
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Author : J.E. Vanderplank
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Genetic And Molecular Basis Of Plant Pathogenesis written by J.E. Vanderplank 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 Science categories.


As befits a volume in the Advanced Series in Agricultural Sciences, this book was written with problems of practical agriculture in mind. One of the ways of controlling plant disease is by using resistant cultivars; and from the wide literature of genetics and biochemistry in plant pathology I have emphasized what seems to bear most closely on breeding for disease resistance. This has a double advantage, for it happens all to the good that this emphasis is also an emphasis on primary causes of disease, as distinct from subsequent processes of symptom expression and other secondary effects. The chapters are entirely modern in outlook. The great revolution in biology this century had its high moments in the elucidation of the DNA double helix in 1953 and the deciphering of the genetic code in 1961. This book, so far as I know, is the first in plant pathology to be conceived within the framework of this new biology. Half the book could not have been written 20 years ago, even if there had then been available all the literature that has since accumulated on the genetics and chemistry of plant disease. The new biology is the cement this book uses to bind the literature together. Another feature of this book is an emphasis on thermodynamics.



Apomixis In Angiosperms


Apomixis In Angiosperms
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Author : Diego Hojsgaard
language : en
Publisher: CRC Press
Release Date : 2022-08-19

Apomixis In Angiosperms written by Diego Hojsgaard and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-08-19 with Science categories.


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 Plants


Apomixis In Plants
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Author : Lenn Jerling
language : en
Publisher: Routledge
Release Date : 2017-11-22

Apomixis In Plants written by Lenn Jerling and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-22 with Science categories.


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.



Apomixis In Angiosperms


Apomixis In Angiosperms
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Author : Tamara N. Naumova
language : en
Publisher: CRC Press
Release Date : 2018-01-10

Apomixis In Angiosperms written by Tamara N. Naumova and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-01-10 with Science categories.


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.



Sexual Plant Reproduction


Sexual Plant Reproduction
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Author : Mauro Cresti
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Sexual Plant Reproduction written by Mauro Cresti 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 Science categories.


In recent years there has been a growing awareness of the importance of reproductive biology to crop production and there has been a tremendous increase in research on reproductive structures of higher plants. Presented here is a wide information of different aspects of micro- and macrosporogenesis, pollen-stigma interaction and recognition, pollen tube growth, cytoskeleton, in vitro and in vivo gamete fusion, and incompatibility. The most advanced techniques employed in studies on reproductive biology of higher plants are described in detail.



Apomixis


Apomixis
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Author : Gurdev S. Khush
language : en
Publisher: Int. Rice Res. Inst.
Release Date : 1994

Apomixis written by Gurdev S. Khush and has been published by Int. Rice Res. Inst. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Apomixis categories.


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.



Plant Breeding In The Omics Era


Plant Breeding In The Omics Era
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Author : Rodomiro Ortiz Ríos
language : en
Publisher: Springer
Release Date : 2015-09-16

Plant Breeding In The Omics Era written by Rodomiro Ortiz Ríos and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-09-16 with Science categories.


​The field of plant breeding has grown rapidly in the last decade with breakthrough research in genetics and genomics, inbred development, population improvement, hybrids, clones, self-pollinated crops, polyploidy, transgenic breeding and more. This book discusses the latest developments in all these areas but explores the next generation of needs and discoveries including omics beyond genomics, cultivar seeds and intellectual and property rights. This book is a leading-edge publication of the latest results and forecasts important areas of future needs and applications.​