Delivering the Fruits of Plant Genomics

Delivering the Fruits of Plant Genomics PDF Author: Jennifer Elizabeth Spindel
Publisher:
ISBN:
Category :
Languages : en
Pages : 314

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Book Description
To address the multiple challenges to food security posed by global climate change, population growth and rising incomes, plant breeders are developing new crop varieties that can enhance both agricultural productivity and environmental sustainability. Current breeding practices, however, are unable to keep pace with demand. Genomic Selection (GS) is a new breeding method in which genome-wide markers are used to predict the breeding value of individuals in a breeding population. GS has been shown to improve breeding efficiency in dairy cattle and several crop plant species, and here I evaluate for the first time its efficacy for breeding inbred lines of rice. I performed a genome-wide association study (GWAS) in conjunction with five-fold GS cross-validation on a population of 363 elite breeding lines from the International Rice Research Institute's (IRRI) irrigated rice breeding program and herein report the GS results. The population was genotyped using a genotyping-by-sequencing protocol optimized for rice in the first part of this thesis. The training population, statistical method used to build the GS model, number of markers, and trait were varied to determine their effect on prediction accuracy. For all three traits, genomic prediction models outperformed prediction based on pedigree records alone. Furthermore, the most accurate GS models were those that incorporated fixed variables derived from genome-wide-association studies (GWAS) performed on rice model training data and by incorporating data from multiple environments. Two breeding schemas are then presented, including an extended, two-stream breeding design that can be used to efficiently integrate novel variation into elite breeding populations, expanding genetic diversity and enhancing the potential for sustainable productivity gains.

Delivering the Fruits of Plant Genomics

Delivering the Fruits of Plant Genomics PDF Author: Jennifer Elizabeth Spindel
Publisher:
ISBN:
Category :
Languages : en
Pages : 314

Get Book Here

Book Description
To address the multiple challenges to food security posed by global climate change, population growth and rising incomes, plant breeders are developing new crop varieties that can enhance both agricultural productivity and environmental sustainability. Current breeding practices, however, are unable to keep pace with demand. Genomic Selection (GS) is a new breeding method in which genome-wide markers are used to predict the breeding value of individuals in a breeding population. GS has been shown to improve breeding efficiency in dairy cattle and several crop plant species, and here I evaluate for the first time its efficacy for breeding inbred lines of rice. I performed a genome-wide association study (GWAS) in conjunction with five-fold GS cross-validation on a population of 363 elite breeding lines from the International Rice Research Institute's (IRRI) irrigated rice breeding program and herein report the GS results. The population was genotyped using a genotyping-by-sequencing protocol optimized for rice in the first part of this thesis. The training population, statistical method used to build the GS model, number of markers, and trait were varied to determine their effect on prediction accuracy. For all three traits, genomic prediction models outperformed prediction based on pedigree records alone. Furthermore, the most accurate GS models were those that incorporated fixed variables derived from genome-wide-association studies (GWAS) performed on rice model training data and by incorporating data from multiple environments. Two breeding schemas are then presented, including an extended, two-stream breeding design that can be used to efficiently integrate novel variation into elite breeding populations, expanding genetic diversity and enhancing the potential for sustainable productivity gains.

The Molecular Biology and Biochemistry of Fruit Ripening

The Molecular Biology and Biochemistry of Fruit Ripening PDF Author: Graham Seymour
Publisher: John Wiley & Sons
ISBN: 1118592980
Category : Science
Languages : en
Pages : 228

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Book Description
A comprehensive and mechanistic perspective on fruit ripening, emphasizing commonalities and differences between fruit groups and ripening processes. Fruits are an essential part of the human diet and contain important phytochemicals that provide protection against heart disease and cancers. Fruit ripening is of importance for human health and for industry-based strategies to harness natural variation, or genetic modification, for crop improvement. This book covers recent advances in the field of plant genomics and how these discoveries can be exploited to understand evolutionary processes and the complex network of hormonal and genetic control of ripening. The book explains the physiochemical and molecular changes in fruit that impact its quality, and recent developments in understanding of the genetic, molecular and biochemical basis for colour, flavour and texture. It is a valuable resource for plant and crop researchers and professionals, agricultural engineers, horticulturists, and food scientists. Summary: Reviews the physiochemical and molecular changes in fruit which impact flavour, texture, and colour Covers recent advances in genomics on the genetic, molecular, and biochemical basis of fruit quality Integrates information on both hormonal and genetic control of ripening Relevant for basic researchers and applied scientists

Functional genomics in fruit trees: From ‘omics to sustainable biotechnologies, volume II

Functional genomics in fruit trees: From ‘omics to sustainable biotechnologies, volume II PDF Author: Concetta Licciardello
Publisher: Frontiers Media SA
ISBN: 2832523331
Category : Science
Languages : en
Pages : 175

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Book Description


Genomics of Tree Crops

Genomics of Tree Crops PDF Author: R.J. Schnell
Publisher: Springer Science & Business Media
ISBN: 1461409209
Category : Science
Languages : en
Pages : 377

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Book Description
Trees that are indispensably supportive to human life pose a formidable challenge to breed them to suit to human needs. From soft drinks to breweries to beverages to oil to tires, the value added products from trees give a spectrum of products to human kind. While attempts to tap these resources through conventional breeding are underway, the quick and elegant way of manipulating the genetic systems at the genome level is an essential chapter of modern science. Books featuring genomics of tree crops are few, and genomics is such a science that changes rapidly. Genomics of Tree Crops is an earnest attempt towards compiling genomics of tree crops. Plant genomics has made monumental strides in the last decade providing insights into intra-genomic phenomena such as heterosis, epistasis, pleiotropy and other interactions between loci and alleles within the genome. In contrast, the investigation of the roles and functions of single genes is a primary focus of molecular biology and is a common topic of modern genetic research. A genome is the sum total of all of an individual organism's genes. Thus, genomics is the study of all the genes of a cell, or tissue, at the DNA (genotype), mRNA (transcriptome), or protein (proteome) levels. The complete sequencing of the three billion base pair human genome with 25,000 genes identified and the invention of DNA microarrays ushered in a new era in the science of genomics leading to explosive advancements in oncology diagnostics. This impetus into the genomics era lead the way toward advances in plant genomics which started with Arabidopsis thaliana and went through an array of crops such as rice, maize, papaya, various cereals and legumes, with pigeon pea added to the list towards the end of 2011. Trees, on the other hand, are the least attended taxa with regard to genomic research. Some of the areas that attained attention of the scientists are: DNA sequencing, bioinformatics, genomics of flowering, gene flow, spatial structure, local adaptation and assisted migration in trees, transformation of fruit trees, genomics of tropical and temperate fruit trees, genomics of Hevea rubber, genomics of papaya and genomics of palms. Genomics of Tree Crops compiles this information with chapters authored by experts on these crops.

Genetics, Genomics and Breeding of Stone Fruits

Genetics, Genomics and Breeding of Stone Fruits PDF Author: Chittaranjan Kole
Publisher: CRC Press
ISBN: 1578088011
Category : Science
Languages : en
Pages : 432

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Book Description
The stone fruits—including peaches, apricots, almonds, plums, and cherries—have been bred and grown for thousands of years and today are significant agricultural crops in many local economies worldwide. This volume presents a comprehensive commentary on classical genetics and breeding, molecular mapping and breeding of agronomic traits, and the cloning of genes of interest. It also explores recent advances on omics sciences including structural and functional genomics, proteomics, nd metabolomics. The book enumerates the whole genome sequencing of the model fruit plant peach and discusses bioinformatic strategies and tools for stone fruit research

Achievements of the National Plant Genome Initiative and New Horizons in Plant Biology

Achievements of the National Plant Genome Initiative and New Horizons in Plant Biology PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309114187
Category : Science
Languages : en
Pages : 183

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Book Description
Life on Earth would be impossible without plants. Humans rely on plants for most clothing, furniture, food, as well as for many pharmaceuticals and other products. Plant genome sciences are essential to understanding how plants function and how to develop desirable plant characteristics. For example, plant genomic science can contribute to the development of plants that are drought-resistant, those that require less fertilizer, and those that are optimized for conversion to fuels such as ethanol and biodiesel. The National Plant Genome Initiative (NPGI) is a unique, cross-agency funding enterprise that has been funding and coordinating plant genome research successfully for nine years. Research breakthroughs from NPGI and the National Science Foundation (NSF) Arabidopsis 2010 Project, such as how the plant immune system controls pathogen defense, demonstrate that the plant genome science community is vibrant and capable of driving technological advancement. This book from the National Research Council concludes that these programs should continue so that applied programs on agriculture, bioenergy, and others will always be built on a strong foundation of fundamental plant biology research.

The Citrus Genome

The Citrus Genome PDF Author: Alessandra Gentile
Publisher: Springer Nature
ISBN: 3030153088
Category : Science
Languages : en
Pages : 295

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Book Description
This book reviews how the release of the citrus genome facilitates the investigation of ancestral species, the study of their complex biological features, and the genetic basis of agronomic traits of paramount importance for their sustainable cultivation. The first chapters discuss citrus origin and distribution, and the economic importance and varietal composition of the cultivated species, providing an overview of citrus and related genera genetic resources. The book then describes the role of traditional breeding techniques (for scion and rootstocks) as well as the potential of genomic breeding and innovative protocols for biotechnological approaches. The second part provides essential information on the genus Citrus, the attributes of pure citrus species, genetic admixtures, hybrids and citrus relatives, and on the horticultural classification of cultivated species, varieties and rootstocks. The third part then focuses on the different molecular mechanisms, covering various aspects of citrus biology, including the role of beneficial compounds of citrus fruits. In addition, it examines the molecular responses of citrus to abiotic stresses and to field and post-harvest diseases. Providing insights gained in recent years, it is a valuable guide for those who are interested in gene discovery, comparative genomics, molecular breeding and new breeding techniques. It is particularly useful for scientists, breeders and students at universities and public sector institutes involved in research for the citrus industry.

The Genomes of Rosaceous Berries and Their Wild Relatives

The Genomes of Rosaceous Berries and Their Wild Relatives PDF Author: Timo Hytönen
Publisher: Springer
ISBN: 3319760203
Category : Science
Languages : en
Pages : 218

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Book Description
This book collates the most up to date information on Fragaria, and Rubus genomes. It focuses on the latest advances in the model system Fragaria vesca, along with the allied advances in economically important crops. Covering both basic and applied aspects of crop genomics, it illustrates strategies and resources for the study and utilization of genome sequences and aligned functional genomics resources. Rosaceous berries are collectively an increasingly important set of high-value global crops, with a trade value of over £2 billion dollars per annum. The rosaceous berries strawberry, raspberry and blackberry share some common features at the genome scale, namely a range of ploidy levels in each genus and high levels of heterozygosity (and associated inbreeding depression) due to self-incompatibility systems, dioecy, or multispecies hybridization events. Taken together, although the genomes are relatively compact, these biological features lead to significant challenges in the assembly and analysis of berry genomes, which until very recently have hampered the progress of genome-level studies. The genome of the woodland strawberry, Fragaria vesca, a self-compatible species with a homozygous genome was first sequenced in 2011 and has served as a foundation for most genomics work in Fragaria and to some extent Rubus. Since that time, building upon this resource, there have been significant advances in the development of genome sequences for related crop species. This, coupled with the revolution in affordable sequencing technology, has led to a suite of genomics studies on Fragaria and more recently Rubus, which undoubtedly aid crop breeding and production in future years.

Fruits and Nuts

Fruits and Nuts PDF Author: Chittaranjan Kole
Publisher:
ISBN: 9786610805167
Category : Fruit
Languages : en
Pages : 370

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Book Description
"Genome Mapping and Molecular Breeding in Plants" presents the current status of the elucidation and improvement of plant genomes of economic interest. The focus is on genetic and physical mapping, positioning, cloning, monitoring of desirable genes by molecular breeding and the most recent advances in genomics. The series comprises seven volumes: "Cereals and Millets"; "Oilseeds"; "Pulses, Sugar and Tuber Crops"; "Fruits and Nuts"; "Vegetables"; "Technical Crops"; and "Forest Trees." "Fruits and Nuts" form the largest group among crop plants. Several constraints such as long life cycle, heterozygosity and large plant size caused comparatively slow research progress in the past. The chapters on 20 fruit and nut crops authored by 56 renowned scientists from 12 countries include for the first time comprehensive reviews on mango, banana, olive, pineapple, pistachio, persimmon and papaya. Other crops covered are apple, grape, cherry, plum, peach, pear, apricot, strawberry, raspberry, blueberry, almond, citrus, and avocado.

Applied Plant Genomics and Biotechnology

Applied Plant Genomics and Biotechnology PDF Author: Palmiro Poltronieri
Publisher: Woodhead Publishing
ISBN: 0081000715
Category : Science
Languages : en
Pages : 354

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Book Description
Applied plant genomics and biotechnology reviews the recent advancements in the post-genomic era, discussing how different varieties respond to abiotic and biotic stresses, investigating epigenetic modifications and epigenetic memory through analysis of DNA methylation states, applicative uses of RNA silencing and RNA interference in plant physiology and in experimental transgenics, and plants modified to produce high-value pharmaceutical proteins. The book provides an overview of research advances in application of RNA silencing and RNA interference, through Virus-based transient gene expression systems, Virus induced gene complementation (VIGC), Virus induced gene silencing (Sir VIGS, Mr VIGS) Virus-based microRNA silencing (VbMS) and Virus-based RNA mobility assays (VRMA); RNA based vaccines and expression of virus proteins or RNA, and virus-like particles in plants, the potential of virus vaccines and therapeutics, and exploring plants as factories for useful products and pharmaceuticals are topics wholly deepened. The book reviews and discuss Plant Functional Genomic studies discussing the technologies supporting the genetic improvement of plants and the production of plant varieties more resistant to biotic and abiotic stresses. Several important crops are analysed providing a glimpse on the most up-to-date methods and topics of investigation. The book presents a review on current state of GMO, the cisgenesis-derived plants and novel plant products devoid of transgene elements, discuss their regulation and the production of desired traits such as resistance to viruses and disease also in fruit trees and wood trees with long vegetative periods. Several chapters cover aspects of plant physiology related to plant improvement: cytokinin metabolism and hormone signaling pathways are discussed in barley; PARP-domain proteins involved in Stress-Induced Morphogenetic Response, regulation of NAD signaling and ROS dependent synthesis of anthocyanins. Apple allergen isoforms and the various content in different varieties are discussed and approaches to reduce their presence. Euphorbiaceae, castor bean, cassava and Jathropa are discussed at genomic structure, their diseases and viruses, and methods of transformation. Rice genomics and agricultural traits are discussed, and biotechnology for engineering and improve rice varieties. Mango topics are presented with an overview of molecular methods for variety differentiation, and aspects of fruit improvement by traditional and biotechnology methods. Oilseed rape is presented, discussing the genetic diversity, quality traits, genetic maps, genomic selection and comparative genomics for improvement of varieties. Tomato studies are presented, with an overview on the knowledge of the regulatory networks involved in flowering, methods applied to study the tomato genome-wide DNA methylation, its regulation by small RNAs, microRNA-dependent control of transcription factors expression, the development and ripening processes in tomato, genomic studies and fruit modelling to establish fleshy fruit traits of interest; the gene reprogramming during fruit ripening, and the ethylene dependent and independent DNA methylation changes. - provides an overview on the ongoing projects and activities in the field of applied biotechnology - includes examples of different crops and applications to be exploited - reviews and discusses Plant Functional Genomic studies and the future developments in the field - explores the new technologies supporting the genetic improvement of plants