The I Gene and Broad Spectrum Plant Virus Resistance in Phaseolus Vulgaris L. PDF Download

Author: Margaret Miller Kyle
Publisher:
ISBN:
Category : Beans
Languages : en
Pages : 334

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Author: Molly Melinda Cadle-Davidson
Publisher:
ISBN:
Category :
Languages : en
Pages : 228

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Author: John Patrick Hart
Publisher:
ISBN:
Category :
Languages : en
Pages : 188

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Book Description
Snap bean (Phaseolus vulgaris L.) is an important crop to diversified vegetable production in the Great Lakes Region of the United States, but an aphid-transmitted virus disease complex threatens sustainable production. The component viruses include the potyviruses Clover yellow vein virus (ClYVV) and Bean yellow mosaic virus (BYMV) that are acquired and transmitted rapidly by dispersing aphid vectors. This situation necessitates the identification, introgression, and deployment of plant virus resistance alleles to achieve effective and ecologically sensitive control. Genetic variation for resistance to ClYVV was characterized at the phenotypic and molecular genetic levels. The relationship of three previously putative independent resistance alleles, cyv, desc, and bc-3 was resolved into an allelic series at the Bc-3 locus where the strain and species-specific resistance spectrum was allele specific. Given previous advances, this pathosystem presented an immediate candidate gene, P. vulgaris eIF4E (PveIF4E), as the molecular basis for resistance. A complete association between specific non-synonymous single nucleotide polymorphisms (SNPs) and virus resistance led to the identification of the putative molecular determinants for resistance to ClYVV and Bean common mosaic necrosis virus (BCMNV) strain NL 3 D. PveIF4E allele specific assays were developed for rapid introgression of bc-3 and the novel bc-32 allele into bean breeding programs. Phenotypic evaluation and the allele specific assays were used to further characterize ClYVV resistance in a large and representative sample of common bean genetic diversity. The result was the identification of novel ClYVV resistance in all major market classes, and the validation of the use of the assays for allele mining in germplasm collections. These efforts also lead to the phenotypic identification of ClYVV resistance alleles at independent loci, and established a model for resistance that now includes By-2 and the bc-u, bc-22 combination. The novel and highly efficient genotyping-by-sequencing (GBS) method was adapted to common bean and used to map the position of the By-2 allele for resistance to BYMV and ClYVV. By-2 was mapped to within a 974k kb region on the distal portion of chromosome 2. This effort generated genomic resources for fine mapping and assays that were also validated for marker-assisted selection.

Author: David Evered
Publisher: John Wiley & Sons
ISBN: 0470513578
Category : Science
Languages : en
Pages : 226

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Book Description
Concern about the environmental consequences of the widespread use of pesticides has increased, and evidence of pesticide-resistant virus vectors have continued to emerge. This volume presents a timely survey of the mechanisms of plant resistance and examines current developments in breeding for resistance, with particular emphasis on advances in genetic engineering which allow for the incorporation of viral genetic material into plants. Discusses the mechanisms of innate resistance in strains of tobacco, tomato, and cowpea; various aspects of induced resistance, including the characterization and roles of the pathogenesis-related proteins; antiviral substances and their comparison with interferon; and cross-protection between plant virus strains. Also presents several papers which evaluate the status of genetic engineering as it relates to breeding resistant plants. Among these are discussions of the potential use of plant viruses as gene vectors, gene coding for viral coat protein, satellite RNA, and antisense RNA, and practical issues such as the durability of resistant crop plants in the field.

Author: Molly M. Kyle
Publisher:
ISBN: 9780788156144
Category :
Languages : en
Pages : 278

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Book Description
Provides a critical synthesis of information from breeding programs and genetic studies that integrates developments in molecular biology and biotechnology, including information on the biology of infection and the process of its interruption. Begins with an appraisal of the status of research on the important vegetable crops and their wild relatives. Topics covered include a comprehensive survey of known viral resistance genes in a number of important vegetable crops, including the identification of genes and gene families that confer broad-spectrum resistance to plant viruses.

Author: Leny C. Galvez
Publisher:
ISBN: 9781267804761
Category : Gene silencing
Languages : en
Pages :

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Author: Ortus W. Barnett
Publisher: Springer Science & Business Media
ISBN: 3709169208
Category : Science
Languages : en
Pages : 431

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Book Description
A number of economically important diseases are caused by potyviruses, the largest group of plant viruses. Many of these diseases are distributed worldwide. The development of effective control strategies against viruses is dependent on the availability of reliable methods of identification and detection. To date this has not seemed possible for the potyvirus group, because of its size, complexity, and immense variation. This book brings together the collaborative efforts of exports in the field. It summarizes characteristics of potyviruses which relate to their taxonomy and points to areas which require consideration before an international consensus can be reached. Main topics dealt with in detail are: serological relationships, nucleic acid sequence information, biological properties, and specific problems with several virus subgroups or pairs of viruses.

Author:
Publisher: Academic Press
ISBN: 0080923089
Category : Science
Languages : en
Pages : 280

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Book Description
Viruses are a huge threat to agriculture. In the past, viruses used to be controlled using conventional methods, such as crop rotation and destruction of the infected plants, but now there are more novel ways to control them. This volume focuses on topics that must be better understood in order to foster future developments in basic and applied plant virology. These range from virus epidemiology and virus/host co-evolution and the control of vector-mediated transmission through to systems biology investigations of virus-cell interactions. Other chapters cover the current status of signalling in natural resistance and the potential for a revival in the use of cross-protection, as well as future opportunities for the deployment of the under-utilized but highly effective crop protection strategy of pathogen-derived resistance. Contributions from leading authorities Informs and updates on all the latest developments in the field

Author: Suresh Kumar Dubey
Publisher: Elsevier
ISBN: 0444636722
Category : Science
Languages : en
Pages : 310

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Book Description
Current Developments in Biotechnology and Bioengineering: Crop Modification, Nutrition, and Food Production provides extensive coverage of new developments, state-of-the-art technologies, and potential future trends, presenting data-based scientific knowledge on agribiotechnology and describing world agriculture and the role biotechnology can play in ensuring food security over the next fifty years. The book discusses the effects of climate change in agriculture and the resultant emergence of new crops, including drought tolerant and more nutritious plants. In addition, the book discusses insect and virus resistance in plants and outlines plant metabolic engineering for agriculture, genetically engineered plants, and microbial diseases. Highlights recent developments in agriculture due to biotechnology Relates the effect of climate change in agriculture to the development of new crops Describes the application of metabolic engineering in the development of new genetically modified plants

Author: Gad Loebenstein
Publisher: Academic Press
ISBN: 0128012641
Category : Science
Languages : en
Pages : 542

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Book Description
The first review series in virology and published since 1953, Advances in Virus Research covers a diverse range of in-depth reviews, providing a valuable overview of the field. The series of eclectic volumes are valuable resources to virologists, microbiologists, immunologists, molecular biologists, pathologists, and plant researchers. Volume 90 features articles on control of plant virus diseases. Contributions from leading authorities Comprehensive reviews for general and specialist use First and longest-running review series in virology