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Rhizomania
ISBN-13:
9783319306780
Veröffentl:
2016
Seiten:
281
Autor:
Enrico Biancardi
eBook Typ:
PDF
eBook Format:
EPUB
Kopierschutz:
1 - PDF Watermark
Sprache:
Englisch
Beschreibung:
Rhizomania is a relatively new and devastating disease affecting sugar beet. Around fifty years ago, it was recognized that the pathogenic agent is the virus, later named Beet necrotic yellow vein virus (BNYVV), vectored and inoculated by the soil-borne fungus Polymyxa betae. The diffusion of the disease is still ongoing today in every cultivated area and causes damage in sugar yield of sometimes more than 80%. It was soon understood that the unique, economically feasible means for limiting the damage was provided only by genetic resistances. In fact, the traditional management systems, including long crop rotations, nearly resulted without effects. The discovery of the causal agents and the release of the first resistant varieties are recalled by the researchers directly involved.
1. introduction.- 2. Rhizomania: History and Current Status.- 3. The Causal Agents: Beet Necrotic Yellow Vein Virus.- 4. Molecular Biology and Replication of Beet Necrotic Yellow Vein Virus.- 5. Genetic Diversity of Beet Necrotic Yellow Vein virus.- 6. The Viral Vector Polymyxa betae.- 7. Ecology and Epidemiology.- 8. Control.- 9. Genetic Resistances.- 10. Engineering Transgenic Rhizomania Resistance.- 11. Breeding Methods.- 12 Assisted Selection.- 13 Perspective.
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