Genome Wide Mapping Of Fruit Quality Traits In Apple
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| Author | : Beatrice Amyotte |
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| Total Pages | : |
| Release | : 2017 |
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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.
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| ISBN | : 9788793476721 |
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| Total Pages | : 152 |
| Release | : 2016 |
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| Author | : Chittaranjan Kole |
| Publisher | : CRC Press |
| Total Pages | : 555 |
| Release | : 2024-03-29 |
| Genre | : Science |
| ISBN | : 1003846556 |
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.
| Author | : Schuyler S. Korban |
| Publisher | : Springer |
| Total Pages | : 322 |
| Release | : 2019-07-03 |
| Genre | : Science |
| ISBN | : 3030110486 |
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.
| Author | : Claudius Marondedze |
| Publisher | : |
| Total Pages | : 818 |
| Release | : 2009 |
| Genre | : Apples |
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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...
| Author | : Jim F. Hancock |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 459 |
| Release | : 2008-02-21 |
| Genre | : Science |
| ISBN | : 1402069073 |
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.
| Author | : Maria Luisa Badenes |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 882 |
| Release | : 2012-01-16 |
| Genre | : Science |
| ISBN | : 1441907629 |
Fruit Breeding is the eighth volume in the Handbook of Plant Breeding series. Like the other volumes in the series, this volume presents information on the latest scientific information in applied plant breeding using the current advances in the field, from an efficient use of genetic resources to the impact of biotechnology in plant breeding. The majority of the volume showcases individual crops, complemented by sections dealing with important aspects of fruit breeding as trends, marketing and protection of new varieties, health benefits of fruits and new crops in the horizon. The book also features contributions from outstanding scientists for each crop species. Maria Luisa Badenes Instituto Valenciano de Investigaciones Agrarias (IVIA), Valencia, Spain David Byrne Department of Horticultural Sciences, Texas A&M University, College Station, TX, USA
| Author | : Kevin M. Folta |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 633 |
| Release | : 2009-05-28 |
| Genre | : Science |
| ISBN | : 0387774912 |
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.
| Author | : Claudius Marondedze |
| Publisher | : LAP Lambert Academic Publishing |
| Total Pages | : 352 |
| Release | : 2011-04 |
| Genre | : |
| ISBN | : 9783843394475 |
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.
