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Somaclonal Variation and Induced Mutations in Crop Improvement: 32 (Current Plant Science and Biotechnology in Agriculture) - Softcover
Inhaltsangabe
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.
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Reseña del editor
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.
Reseña del editor
The basic purpose of this book is to describe the relative value of each method of improving various agricultural crops by using parasexual techniques. While no book can be a complete source of all the information on a subject, a range of topics were selected to highlight the recent developments in mutagenesis (conventional approach and molecular biology) and in vitro induced variation in plant breeding. We have deliberately kept short the title of this book, simply emphasizing somaclonal variation and induced mutation.
This book is divided into three sections. Section 1 contains 13 chapters mainly on somaclonal variation (SCV), covering SCV in crop improvement, SCV in ornamentals, cereals and forage grasses, banana, and forest trees, cytogenetic basis of SCV, in vitro selection, gametoclonal variation, protoclonal variation, and solanaceous medicinal plants. Section 2 deals with induced mutation, and is covered in 10 chapters mainly on mutagenesis in sugarcane, fruit trees, apomixsis, ornamental plants, disease resistance, cereals and legumes, and vegetatively propagated plants. Section 3 describes the molecular aspects of mutagenesis and somaclonal variation, insertional mutagenesis (T-DNA mutagenesis, transposons), and molecular methods for identifying somaclonal variation, RAPD markers in banana somaclones, and transgene expression.
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Somaclonal Variation and Induced Mutations in Crop Improvement
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Springer Netherlands, Springer Netherlands, 2010
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Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - 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. Artikel-Nr. 9789048149568
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