The Genus Citrus presents the enormous amount of new knowledge that has been generated in recent years in practically all topics related to citrus. Beginning with an overview of the fundamental principles and understanding of citrus biology and behavior, the book provides a comprehensive view from Citrus evolution through to current market importance. Reporting on new insights supported by the elucidation of the citrus genome sequence, it presents ground-breaking theories and fills in previous knowledge gaps.
Because citrus is among the most difficult plants to improve through traditional breeding, citrus researchers, institutions and industries have to learn quickly to adapt to new developments, knowledge and technologies to address the biological constraints of a unique fruit-tree such as citrus. Despite the challenges of working with citrus, tremendous progress has been made, mostly through advances in molecular biology and genomics.
This book is valuable for all those involved with researching and advancing, producing, processing and delivering citrus products.
- Includes the most current information on citrus genomic information
- Provides the first detailed description of citrus origin, a new proposal for citrus taxonomy, and a redefinition of the genus Citrus
- Details citrus challenges including climate change, global disease impacts, and plant improvement strategies
Students and researchers focused on citrus, citriculture, and horticulture
PART I: CITRUS ORIGIN
1. The citrus genome. Breakthrough developments in citrus genomics, especially a full description of the citrus genome. Impact on citrus research and in particular in taxonomy since a reformulated proposal based on genome sequencing can be presented
2. The origin of citrus. First time description of citrus origin, chronogram, spatio-temporal framework and geological, geographic and climatological causes of origin. Phylogeny of citrus Biogeography. Radiations and evolution. Natural dispersal
3. Domestication and history. First domestication hypotheses. Citrus in ancient China, Japan and India. Citrus introduction and diversification in the Western Hemisphere. Current distribution.
PART II: CITRUS DIVERSITY
5. The genus Citrus. Definition of the genus citrus. Botanical and physiological description of pure species, hybrids, genetic admixtures and citrus related species. Horticultural classifications
6. Commercial scion varieties. Description of major citrus varieties, their characteristics, distribution and commercial value.
7. Commercial rootstocks. Description of major citrus rootstocks, their characteristics, distribution and commercial value
PART III: CITRUS PHYSIOLOGY
8. Vegetative growth. Regulation of vegetative growth, including seeds, seedlings, bud and shoot development, dormancy, photosynthesis, anatomy of leaves and roots, leaf growth and development, plant growth regulators and gene expression.
9. Flowering and fruit set. Flower and developing fruit anatomy, regulation and control of reproductive growth, flowering, alternate bearing, fruit setting, plant growth regulators and gene expression.
10. Fruit growth and ripening. Fruit anatomy and development, physiology and biochemistry of citrus fruits, fruit quality and productivity, characteristics of citrus fruits, regulation and control of fruit abscission and gene expression.
PART IV: CITRUS ECOPHYSIOLOGY
11. Climate change. Climatic considerations, limits to citrus growth, constraints on vegetative and reproductive development, high temperature, humidity, rainfalls, wind, day length and light, frost and freezes.
12. Salinity and water stress. Salinity components, sodium and chloride ions, water deficits, effect on vegetative and reproductive growth, mechanisms of tolerance and adaptation and variety and rootstock performances and tolerances.
13. Soil and nutrition interactions Soil composition, organic matter, pH, mineral deficiencies, effect on vegetative and reproductive growth, adaptation and variety and rootstock performances and tolerances
PART V: CITRUS PESTS AND DISEASES
14. Insects and pests. Main pests, agents, symptoms and control, pest status, recent development, biological control
15. Fungal pathogens. Main pathogenic agents, symptoms, control, recent developments, Alternaria, Phytophthora… etc
16. Bacterial pathogens Main pathogenic agents, symptoms, control, recent developments, Citrus canker, Huanglonbing… etc
17. Virus and viroids. Main pathogenic agents, symptoms, control, recent developments, Tristeza, Exocortis … etc
PART VI: CITRUS BREEDING
18. Traditional breeding. Spontaneous mutations, mutation breeding, seedlessness, chimeras, apomixis, nucellar embryony, polyploidy, hybridizations, somatic hybridization, crossings and selection, breeding programs.
19. Genomic breeding. Genomic selection, genotyping by sequencing, genome wide association studies, marker-assisted selection, genome editing.
20. Biotechnological approaches. Molecular markers, tissue culture, genetic transformation of citrus, virus-induced gene silencing, disease resistance genes, fruit quality genes.
PART VII: CITRUS MANAGEMENT
21. Culture and management. Mineral nutrition, orchard planning, irrigation and water use, treatments, soil management, tree size control, growth regulators, ecological management
22. Pre- and Post-harvest technologies. Mechanical harvesting, shelf life, physiology and biochemistry of fruit quality, storage, (rot, decay, mold), controlled atmospheres, pesticides and organically produced fruits, low temperatures, temperature and relative humidity control, innovations and breakthrough technologies
PART VIII: CITRUS VALUE
23. Marketing and trade. Citrus production, consumption and stocks, global trade perspectives, fresh fruit markets, processed citrus fruits markets, citrus juices and by-products
24. Citrus and health. Quality factors of citrus fruits and juices, active components and principles, health benefits of citrus, human disease prevention
- No. of pages:
- © Woodhead Publishing 2019
- 1st October 2018
- Woodhead Publishing
- Hardcover ISBN:
Head of the Centro de Genomica at the Instituto Valenciano de Investigaciones Agrarias (Valencia, Spain). His main area of expertise is related to citrus genomics and physiology, with main emphasis on fruit growth development and abiotic stresses. He has been awarded with two national first prizes on agricultural research
Centro de Genomica Instituto Valenciano de Investigaciones Agrarias, Valencia, Spain
A University of Florida Research Foundation Professor, located at the Citrus Research and Education Center (UF-CREC). He has worked on citrus breeding, genetics, and genomics for more than 30 years. Research topics have included development of marker-assisted selection tools; host-pathogen interactions; genetic control of fruit color, flavor and aroma; disease resistance; and market/consumer-driven approaches to citrus breeding. He led the International Citrus Genome Consortium to release the first publicly available whole genome sequence resources in 2011.
UF Research Foundation Professor, Leader, International Citrus Genome Consortium, University of Florida, Institute of Food and Agricultural Sciences, Citrus Research and Education Center, FL, USA
Researcher at the Council for Agricultural Research and Economics (CREA, Italy), qualified as an Associate Professor (Italian National Academic Qualification) in fruit tree culture. In the past decade, he has worked on citrus genetics and functional genomics in relation to reproductive biology and fruit ripening. He is leading the breeding program at CREA and is also involved in the development of molecular markers for citrus clonal fingerprinting.
Consiglio per la ricerca in agricoltura e l’analisi dell’economia agraria - Centro di ricerca per l’agrumicoltura e le colture Mediterranee (CREA-ACM), Acireale (CT), Italy