From Functional Genomics To Biotechnology In Ornamental Plants

For centuries plants of a broad taxonomical background have been bred and commercialized because of the beauty of their flowers. However, until recently genomic analyses of ornamentals remained a challenge because of their large genome sizes and high ploidy levels. In the last decade, increasingly affordable sequencing technologies and powerful bioinformatic approaches resulted in the complete sequencing of several horticultural species genomes and the characterization of their transcriptomes. These developments enabled research on many challenging topics. This Research Topic gives you a primer into them by featuring a broad range of original research contributions on some of the most active areas of ornamental plant research: the genetic basis of flower morphology, scent, and color, the genetic regulation of physiology as well as the epigenetic factors affecting vegetative development. In this context, one of the most significant hurdles to functional genetic studies in ornamentals is achieving efficient genetic transformation. Several articles in this Research Topic describe strategies to tackle this challenge and present insights into the way transgene activity renders novel flower phenotypes.

Functional genomics is a young discipline whose origin can be traced back to the late 1980s and early 1990s, when molecular tools became available to determine the cellular functions of genes. Today, functional genomics is p- ceived as the analysis, often large-scale, that bridges the structure and organi- tion of genomes and the assessment of gene function. The completion in 2000 of the genome sequence of Arabidopsis thaliana has created a number of new and exciting challenges in plant functional genomics. The immediate task for the plant biology community is to establish the functions of the approximately 25,000 genes present in this model plant. One major issue that will remain even after this formidable task is c- pleted is establishing to what degree our understanding of the genome of one model organism, such as the dicot Arabidopsis, provides insight into the or- nization and function of genes in other plants. The genome sequence of rice, completed in 2002 as a result of the synergistic interaction of the private and public sectors, promises to significantly enrich our knowledge of the general organization of plant genomes. However, the tools available to investigate gene function in rice are lagging behind those offered by other model plant systems. Approaches available to investigate gene function become even more limited for plants other than the model systems of Arabidopsis, rice, and maize.

Find out how biotechnology can produce more nutritious fruits and vegetables, more colorful flowers, and grass that needs less water—and mowing! Plant Biotechnology in Ornamental Horticulture presents an in-depth overview of the key scientific and technical advances, issues, and challenges in one of the fastest growing segments of the agriculture industry. This comprehensive book covers 19 different topics related to the use of transgenic plant technology to improve ornamental plants, ranging from metabolic engineering of flower color and scent to improving cold, drought, and disease tolerance in horticultural and ornamental crops to the economics of horticultural biotechnology. Horticulture provides color and flavor to the foods we eat and variety to the products we use, and helps us sustain a healthy environment. Plant Biotechnology in Ornamental Horticulture examines the importance of biotechnology in cultivating garden crops-including fruits, vegetables, flowers, and ornamentals such as plants used for landscaping-by reducing pesticide use, reducing soil erosion, and developing plants with improved nutrition. Leading educators and horticultural professionals address important current and future topics, including micropropagation and regeneration, the use of molecular techniques for genetic improvement, molecular-assisted breeding, abiotic stress, the development of disease resistance, protection from insects, herbicide tolerance, controlled flowering, modifying color and fragrance, plant architecture, and senescence. Plant Biotechnology in Ornamental Horticulture examines: * ornamental plant transformation * molecular phylogeny * drought response and drought tolerance engineering * transgenic approaches to viral, bacterial, and fungal disease resistance * vegetable propagation by cuttings * the promotion of flowering * molecular aspects of leaf morphogenesis * transgenic manipulation * controlling invasive plants * plant hormones, including ethylene, gibberellins (GAs), auxin, cytokinin, and abscisic acid (ABA) * and much more Plant Biotechnology in Ornamental Horticulture is essential reading for plant breeders, physiologists, agronomists, molecular biologists, cropping system specialists, as well as for educators and students involved in horticulture.

With the appearance of methods for the sequencing of genomes and less expensive next generation sequencing methods, we face rapid advancements of the -omics technologies and plant biology studies: reverse and forward genetics, functional genomics, transcriptomics, proteomics, metabolomics, the movement at distance of effectors and structural biology. From plant genomics to plant biotechnology reviews the recent advancements in the post-genomic era, discussing how different varieties respond to abiotic and biotic stresses, understanding the epigenetic control and epigenetic memory, the roles of non-coding RNAs, applicative uses of RNA silencing and RNA interference in plant physiology and in experimental transgenics and plants modified to specific aims. In the forthcoming years these advancements will support the production of plant varieties better suited to resist biotic and abiotic stresses, for food and non-food applications. This book covers these issues, showing how such technologies are influencing the plant field in sectors such as the selection of plant varieties and plant breeding, selection of optimum agronomic traits, stress-resistant varieties, improvement of plant fitness, improving crop yield, and non-food applications in the knowledge based bio-economy. Discusses a broad range of applications: the examples originate from a variety of sectors (including in field studies, breeding, RNA regulation, pharmaceuticals and biotech) and a variety of scientific areas (such as bioinformatics, -omics sciences, epigenetics, and the agro-industry) Provides a unique perspective on work normally performed 'behind closed doors'. As such, it presents an opportunity for those within the field to learn from each other, and for those on the 'outside' to see how different groups have approached key problems Highlights the criteria used to compare and assess different approaches to solving problems. Shows the thinking process, practical limitations and any other considerations, aiding in the understanding of a deeper approach

Plants are sessile organisms and their only alternative to a rapidly changing environment is a fast adaptation to abiotic and biotic stresses. Among the several known species of flowering plants, Arabidopsis thaliana is the only plant that has been most thoroughly studied. This angiosperm with dicotyledonous seeds belonging to the family Brassicaceae was known to botanists for at least four centuries and has been used since then for experimental studies for about half a century, until it was Friedrich Laibach who had outlined the advantages of using it in genetic experiments and had also suggested that it could be used as a plant model system in 1943. Its unique features favors genetic experiments, which include its small size, a rapid generation time, the ability to grow well under controlled conditions, high fecundity of up to 10,000 seeds per plant. Like the peas that Mendel studied, it reproduces mainly by self-fertilisation. Arabidopsis is considered a model plant for many studies as its genomic sequence was completely identified and its mechanisms in genomic, transcriptomic and proteomic regulation are often similar to other plant species. The aim of this book is to give an up-to-date overview on the recent breakthroughs in the area of responses and adaptations of Arabidopsis, particularly those regarding its cultivation, life cycle and functional genomics. The chapters are focused on the most exciting and innovative researches on this species, involving authors with strong research experience. The present volume would definitely be an ideal source of scientific information to the advanced students, junior researchers, faculty and scientists involved in the ecology, agriculture, environmental microbiology, genetics, molecular biology, biochemistry, biotechnology and other areas involving Arabidopsis studies and plant sciences in general.

The openings offered by functional genomics reconciles organism biology and molecular biology, in order to define an integrative biology that should allow new insights about how a phenotype is built up from a genotype in interaction with its environment. This book covers a wide area of concepts and methods in genomics. This range from international

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

This book offers a unique and comprehensive overview of key RNA-based technologies, as well as their development and applications for the functional genomics of plant coding and non-coding genes. It focuses on the latest as well as classical RNA-based techniques used for studies on small RNAs, long non-coding RNAs and protein-coding genes. These techniques chiefly focus on target mimics (TMs) and short tandem target mimics (STTMs) for small RNAs, and artificial microRNAs (amiRNAs), RNA interference (RNAi) and CRISPR/Cas for genes. Furthermore, the book discusses the latest trends in the field and various modifications of the above-mentioned approaches, and explores how these RNA-based technologies have been developed, applied and validated as essential technologies in plant functional genomics. RNA-based technologies, their mechanisms of action, their advantages and disadvantages, and insights into the further development and applications of these technologies in plants are discussed. These techniques will enable the users to functionally characterize genes and small RNAs through silencing, overexpression and editing. Gathering contributions by globally respected experts, the book will appeal to students, teachers and scientists in academia and industry who are interested in horticulture, genetics, pathology, entomology, physiology, molecular genetics and breeding, in vitro culture & genetic engineering, and functional genomics.