Download or read book GENOME WIDE MAPPING OF FRUIT QUALITY TRAITS IN APPLE written by Beatrice Amyotte and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis is an investigation of the genetics of fruit quality in cultivated apple (Malus x domestica). M. x domestica is grown around the world as one of the most popular temperate fruit crop species. Fruit quality is an important trait in apples, and understanding the genetic architecture can accelerate breeding efforts. In recent years, several important quantitative trait loci have been discovered, including genetic regions controlling components of fruit texture, taste and flavour. The objective of this thesis was to identify genetic sources of variation in fruit quality traits with the potential for application in marker assisted apple breeding. This research was necessary to evaluate how previous findings corresponded with variation in genetically distinct apple germplasm, and to determine whether both previously and newly discovered fruit quality loci could be applied to improve the human perception of apple quality. The genetic relationships among 100 diverse apple cultivars were investigated using genotyping by sequencing, and revealed a high level of diversity. Signatures of selection were detected at genomic regions previously found to be associated with fruit quality and adaptation. A genome wide association study of 85 heritage and commercial cultivars detected significant associations with known quantitative trait loci for apple flavour and texture. A novel association for apple texture was detected on chromosome 13. The novel locus could not be validated in two large and diverse apple populations, but remains a strong candidate for use in apple breeding due to its association with the human perception of apple juiciness. The results of this thesis demonstrate the potential for applying marker assisted selection in apple breeding, and for including trained sensory evaluation panels in association studies.
Download or read book Breeding potential in danish apple cultivars genetic diversity and genome wide association mapping of fruit quality traits written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Exploring Horticulturally Important Traits in Apple Using Genetic Mapping in Populations of Differing Size and Composition written by Kendra McClure and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Apple (Malus x domestica Borkh.) is a long-lived woody perennial important to international markets. Development of new apple cultivars historically has been protracted and expensive, largely due to its biology. We believe that locating markers linked to traits of interest and marker-assisted selection (MAS) at the seedling stage could accelerate this process. Quantitative trait locus (QTL) mapping and genome-wide association studies (GWAS) for traits important to the sustainability and longevity of the Canadian apple industry, such as storage disorders, disease resistance, and fruit quality were conducted in three populations. Two QTL associated with the storage disorder soft scald were detected in the parental background of one F1 cross, but were not replicated across years, or when GWAS were conducted in a different population. Apple scab (Venturia ineaqualis [Cke.] Wint.) is a fungal pathogen that plagues growers in wet, humid climates, such as Nova Scotia. Significant genotype-phenotype GWAS associations were detected across seven different chromosomes for apple scab resistance in a germplasm collection of commercial cultivars. In the same population, GWAS also revealed SNPs associated with fruit quality traits, such as apple fruit skin colour and change in firmness during storage. Finally, a large, diverse germplasm collection and GWAS were used to explore flowering time and fruit quality. Significant marker-trait associations were found for flowering time in two years, but no clear candidate genes were identified. Fruit quality studies revealed several significant genotype-phenotype associations, including harvest date, fruit firmness, and acidity. This research will form the foundation of future studies for the development of markers that will assist with the development of new apple cultivars well-suited for Canadian and international markets.
Download or read book Breeding Potential in Danish Apple Cultivar written by and published by . This book was released on 2016 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigating the Fruit Texture Genetic Control in Apple and Its Interplay with the Production of Volatile Compounds Using Multi family Based Analysis and Genome Wide Association Mapping written by and published by . This book was released on 2017 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Apples written by David Curtis Ferree and published by CABI. This book was released on 2003 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive reference work, summarizing our knowledge of apples and their production worldwide. It includes 24 chapters written by international authorities from the USA, Canada, Europe and New Zealand. The main subjects addressed include taxonomy and production statistics, plant materials, apple physiology, orchard and tree management, crop protection (including organic production), harvesting and handling and utilization. The book will be of significant interest to those working in horticulture and botany.
Download or read book Allele Mining for Genomic Designing of Fruit Crops written by Chittaranjan Kole and published by CRC Press. This book was released on 2024-03-29 with total page 555 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deliberates on the concept, strategies, tools, and techniques of allele mining in fruit crops and its application potential in genome elucidation and improvement including studying allele evolution, discovery of superior alleles, discerning new haplotypes, assessment of intra- and interspecific similarity, and also studies of gene expression and gene prediction. Available gene pools in global germplasm collections specifically consisting of wild allied species and local landraces for almost all major crops have facilitated allele mining. Advanced genomic techniques have been developed including PCR-based allele priming and Eco-TILLING-based allele mining that are being widely used now for mining superior alleles. Allele discovery has become more relevant now for employing molecular breeding to develop designed crop varieties matching with consumer needs and also with genome plasticity to adapt the climate change scenarios. All these concepts and strategies along with precise success stories are presented over the chapters dedicated to the major fruit crops. The features of this book are as follows: The first book on the novel strategy of allele mining in fruit crops for precise breeding Presents genomic strategies of mining superior alleles underlying agronomic traits from genomic resources Depicts case studies of PCR-based allele priming and Eco-TILLING-based allele mining Elaborates on gene discovery and gene prediction in major fruit crops This book will be useful to students and faculties in various plant science disciplines including genetics, genomics, molecular breeding, agronomy, and bioinformatics; scientists in seed industries; and also policy makers and funding agencies interested in crop improvement.
Download or read book The Apple Genome written by Schuyler S. Korban and published by Springer Nature. This book was released on 2021-07-14 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers information on the economics; botany, taxonomy, and origin; germplasm resources; cytogenetics and nuclear DNA; genetic improvement efforts of scion cultivars; genetic and genomic improvement efforts of rootstocks; genetic and physical mapping; genomic resources; genome and epigenome; regulatory sequences; utility of whole-genome sequencing and gene editing in trait dissection; flowering and juvenility; cold hardiness and dormancy; fruit color development; fruit acidity and sugar content; metabolomics; biology and genomics of the microbiome; apple domestication; as well as other ‘omics’ opportunities and challenges for genetic improvement of the apple. The cultivated apple (Malus x domestica Borkh.) is one of the most important tree fruit crops of temperate regions of the world. It is widely cultivated and grown in North America, Europe, and Asia. The apple fruit is a highly desirable fruit due to its flavor, sugar and acid content, metabolites, aroma, as well as its overall texture and palatability. Furthermore, it is a rich source of important nutrients, including antioxidants, vitamins, and dietary fiber.
Download or read book The Pear Genome written by Schuyler S. Korban and published by Springer. This book was released on 2019-07-03 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addressing the pear genome, this book covers the current state of knowledge regarding genetic and genomic resources, breeding approaches and strategies, as well as cutting-edge content on how these tools and resources are being / soon will be utilized to pursue genetic improvement efforts that will combine fruit quality, high productivity, precocious fruit bearing, and long postharvest storage life, along with elevated levels of resistance to various major diseases and insect pests. Throughout, the book also explores potential opportunities and challenges in genomic analysis, sequence assembly, structural features, as well as functional studies that will assist in future genetic improvement efforts for pears. The pear (Pyrus), an important tree fruit crop, is grown worldwide, and has several economically relevant cultivars. In recent years, modern genetic and genomic tools have resulted in the development of a wide variety of valuable resources for the pear. In the past few years, completion of whole genome assemblies of ‘Dangshansuli’, an Asian pear, and ‘Bartlett’, a European pear, have paved the way for new discoveries regarding for example, the pear’s genomic structure, chromosome evolution, and patterns of genetic variation. This wealth of new resources will have a major impact on our knowledge of the pear genome; in turn, these resources and knowledge will have significant impacts on future genetic improvement efforts.
Download or read book Functional Genomic Characterization of Fruit Quality Traits in Apple Malus X Demostica Borkh written by Claudius Marondedze and published by . This book was released on 2009 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt: The domesticated apple (Malus x domestica Borkh.), belonging to the Malus genus of the Rosaceae family, is one of the edible pomaceous fruits. Since it is one of the important commercial fruit crops worldwide, the quality of the fruit is crucial to breeders and farmers as it ultimately determines acceptance of a cultivar for consumption. Fruit quality is also a critical determinant factor that is used to estimate the potential of apples to have a long shelf life. The introduction of marker-assisted selection (MAS) has allowed hastening of traditional breeding and selection of high-quality apple cultivars. The domesticated apple (Malus x domestica Borkh.), belonging to the Malus genus of the Rosaceae family, is one of the edible pomaceous fruits. Since it is one of the important commercial fruit crops worldwide, the quality of the fruit is crucial to breeders and farmers as it ultimately determines acceptance of a cultivar for consumption. Fruit quality is also a critical determinant factor that is used to estimate the potential of apples to have a long shelf life. The introduction of marker-assisted selection (MAS) has allowed hastening of traditional breeding and selection of high-quality apple cultivars. The availability of genetic linkage maps, constructed by positioning molecular markers throughout the apple genome, enables the detection and analysis of major genes and quantitative trait loci (QTLs) contributing to the quality traits of a given genotype. herefore, the primary aim of this study was to construct a genetic linkage map of the Golden Delicious x Dietrich population for the identification of QTLs associated with fruit quality traits and then to examine the apple fruit pulp proteome with a specific focus on fruit firmness. In this regard, genomic DNA was extracted from leaves of the Golden Delicious x Dietrich population and used in megaplex PCR reactions. The PCR products were analysed prior to scoring of alleles. Polymorphic markers were then used to construct genetic linkage maps. The genetic linkage maps constructed in this study comprise of 167 simple sequence repeats (SSR) markers, 33 of these were newly developed markers...
Download or read book Temperate Fruit Crop Breeding written by Jim F. Hancock and published by Springer Science & Business Media. This book was released on 2008-02-21 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book fully integrates the conventional and biotechnological approaches to fruit crop breeding. Individual chapters are written on a wide variety of species covering all the major fruit crops in one volume. For each crop, there is a discussion of their taxonomy and evolution, history of improvement, crossing techniques, evaluation methods, and heritability of major traits and germplasm resources. Also discussed are the most recent advances in genetic mapping and QTL (quantitative trait loci) analysis, marker assisted breeding, gene cloning, gene expression analysis, regeneration and transformation. Patenting and licensing issues are also covered.
Download or read book Applied Plant Genomics and Biotechnology written by Palmiro Poltronieri and published by Woodhead Publishing. This book was released on 2015-01-27 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Genetics and Genomics of Rosaceae written by Kevin M. Folta and published by Springer Science & Business Media. This book was released on 2009-05-28 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book on Rosaceae genomics. It covers progress in recent genomic research among the Rosaceae, grounding this firmly in the historical context of genetic studies and in the application of genomics technologies for crop development.
Download or read book Fruit Quality Traits in Apple written by Claudius Marondedze and published by LAP Lambert Academic Publishing. This book was released on 2011-04 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: The domesticated apple (Malus x domestica Borkh.) of the Rosaceae family is one of the most important commercial fruit worldwide. The quality of this pomaceous fruit is crucial to breeders and farmers as it ultimately determines its acceptance for consumption and determines shelf life. The introduction of marker-assisted selection has allowed hastening of traditional breeding. This book reports the first identification of QTLs associated with nine fruit quality traits using a linkage map derived from 'Golden Delicious' x 'Dietrich' population. These loci are of great importance for identification of candidate markers and characterization of genes associated with these quality traits that can be further exploited for new cultivar conception. The book also relates the use of proteomics for comprehensive characterisation of the fruit pulp proteome using 2D-PAGE. Through comparative proteomics analysis of high and low firmness fruits, mechanisms linked with fruit firmness were elucidated. The study sheds light on the mechanisms involved with fruit quality by combining proteomic, genomic and phenotypic data and further link crop biotechnology and fruit breeding.
Download or read book Crop Breeding written by Delphine Fleury and published by Humana. This book was released on 2016-09-24 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recent advent of molecular technologies has changed the way plant breeders identify and select their germplasm as genetic variation can now be assessed at the DNA level. Crop Breeding: Methods and Protocols presents detailed guidelines and tutorials that suit different needs and capacity from small laboratories analyzing molecular markers on a one-by-one basis to the increasingly popular high-throughput protocols for high capacity laboratories. Topics covered include breeding strategy for the selection of an ideal variety or genetic ideo type, protocols for breeders using molecular markers in selection programs and for laboratories providing molecular services to breeding programs, statistical programs and software to aid implementation of molecular data into breeding programs and methodologies that facilitate the generation of genetic diversity and its characterization. Written in the successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible protocols and notes on troubleshooting and avoiding known pitfalls. Authoritative and easily accessible, Crop Breeding: Methods and Protocols will help in expanding the use of molecular technologies for the creation of tomorrow’s crop varieties.
Download or read book Molecular and Metabolic Mechanisms Associated with Fleshy Fruit Quality written by Ana M. Fortes and published by Frontiers Media SA. This book was released on 2017-09-08 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fleshy Fruits are a late acquisition of plant evolution. In addition of protecting the seeds, these specialized organs unique to plants were developed to promote seed dispersal via the contribution of frugivorous animals. Fruit development and ripening is a complex process and understanding the underlying genetic and molecular program is a very active field of research. Part of the ripening process is directed to build up quality traits such as color, texture and aroma that make the fruit attractive and palatable. As fruit consumers, humans have developed a time long interaction with fruits which contributed to make the fruit ripening attributes conform our needs and preferences. This issue of Frontiers in Plant Science is intended to cover the most recent advances in our understanding of different aspects of fleshy fruit biology, including the genetic, molecular and metabolic mechanisms associated to each of the fruit quality traits. It is also of prime importance to consider the effects of environmental cues, cultural practices and postharvest methods, and to decipher the mechanism by which they impact fruit quality traits. Most of our knowledge of fleshy fruit development, ripening and quality traits comes from work done in a reduced number of species that are not only of economic importance but can also benefit from a number of genetic and genomic tools available to their specific research communities. For instance, working with tomato and grape offers several advantages since the genome sequences of these two fleshy fruit species have been deciphered and a wide range of biological and genetic resources have been developed. Ripening mutants are available for tomato which constitutes the main model system for fruit functional genomics. In addition, tomato is used as a reference species for climacteric fruit which ripening is controlled by the phytohormone ethylene. Likewise, grape is a reference species for non-climacteric fruit even though no single master switches controlling ripening initiation have been uncovered yet. In the last period, the genome sequence of an increased number of fruit crop species became available which creates a suitable situation for research communities around crops to get organized and information to be shared through public repositories. On the other hand, the availability of genome-wide expression profiling technologies has enabled an easier study of global transcriptional changes in fruit species where the sequenced genome is not yet available. In this issue authors will present recent progress including original data as well as authoritative reviews on our understanding of fleshy fruit biology focusing on tomato and grape as model species.
Download or read book Genetic Diversity in Plants written by Amir Muhammed and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the last eighteen years we have been deeply involved in a cooperative effort with our Latin American colleagues in genetics, biochemistry, physiology, and molecular biology. We have been in close contact with scientists in a number of centers and have helped to organize symposia, workshops, and so forth, in an effort to accelerate their development and make their substantial work known. These symposia in Latin America have been quite successful. The fifteenth will take place in Brasilia in 1977. At the request of colleagues, we are in the process of developing a similar series in Asia. The first very successful symposium was held in Calcutta in 1973. We were most pleased when Dr. Amir Muhammed, Vice Chancellor of the University of Agriculture, Lyallpur suggested that we hold a symposium on a topic of great importance to Pakistan, Genetic Control of Diversity in Plants, under the auspices of the University of Agriculture. It is our hope that this symposium will be followed by additional ones in Pakistan as well as in other countries in the Far East. Leadership is quickly developing in the hands of outstanding scientists in these countries, and we appreciate the opportunity to cooperate with them. We are especially grateful to the Natiohal Science Foundation for makingPL- 480 funds available which made this symposium possible.
