Mapping Stem Rust Resistance Genes in 'Kingbird'

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (95 download)

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Book Synopsis Mapping Stem Rust Resistance Genes in 'Kingbird' by : Katherine Gambone

Download or read book Mapping Stem Rust Resistance Genes in 'Kingbird' written by Katherine Gambone and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Stem rust, caused by the fungus Puccinia graminis f. sp. tritici, has historically been one of the most important diseases of wheat. Although losses have been much reduced in the last fifty years, new highly virulent races of the pathogen have recently emerged in East Africa. These new races are virulent on nearly all of the currently deployed resistance genes and therefore pose a serious threat to global wheat production. The spring wheat variety 'Kingbird' is thought to contain multiple quantitative trait loci (QTLs) that provide durable, adult-plant resistance against wheat stem rust. Stem rust-susceptible Kansas winter wheat line 'KS05HW14' was backcrossed to Kingbird and 379 recombinant lines were advanced to BC1F5 and then increased for testing. The lines were screened for stem rust resistance in the greenhouse and field in Kansas and in the field in Kenya over multiple years. We identified 16,237 single nucleotide polymorphisms (SNPs) with the Wheat 90K iSelect SNP Chip assay. After filtering for marker quality, linkage maps were constructed for each wheat chromosome. Composite interval mapping and multiple-QTL mapping identified seven QTLs on chromosome arms 2BL, 2DS, 3BS, 3BSc, 5DL, 7BL, and 7DS. Six QTLs were inherited from Kingbird and one QTL on 7BL was inherited from KS05HW14. The location of the QTL on 2BL is approximately at locus Sr9, 3BS is at Sr2, 3BSc is at Sr12, and 7DS is at Lr34/Yr18/Sr57. Although no QTL was found on 1BL, the presence of resistance gene Lr46/Yr29/Sr58 on 1BL in both parents was indicated by the gene-specific marker csLV46. QTLs on 2DS and 5DL may be related to photoperiod or vernalization genes. Pairwise interactions were only observed with race QFCSC, most notably occurring with QTLs 2BL and 3BSc. These results confirm that there are multiple QTLs present in Kingbird. Ultimately, the identification of the QTLs that make Kingbird resistant will aid in the understanding of durable, non-race-specific resistance to stem rust of wheat.

Genetic Characterization of Virulence in a Pacific Northwest Stem Rust Population and Mapping of New Sources of Resistance in Barley

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.3/5 (799 download)

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Book Synopsis Genetic Characterization of Virulence in a Pacific Northwest Stem Rust Population and Mapping of New Sources of Resistance in Barley by : Arjun Upadhaya

Download or read book Genetic Characterization of Virulence in a Pacific Northwest Stem Rust Population and Mapping of New Sources of Resistance in Barley written by Arjun Upadhaya and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stem rust caused by the biotrophic fungal pathogen Puccinia graminis f. sp. tritici (Pgt) is an important disease of barley and wheat globally. In the last decade, the Pacific Northwest (PNW) region of the United States has experienced an increase in the incidence and severity of stem rust disease. This may be attributed to various factors, including increase in summer temperatures, lack of effective resistance, and early inoculum from sexual hosts. The PNW region's conducive environment and the presence of the sexual hosts, Mahonia and barberry, present an opportunity for the stem rust pathogen to complete its sexual cycle, leading to the emergence of genotypes with novel virulence gene combinations. A total of 100 Pgt isolates collected from barley in eastern Washington during the 2019 growing season were tested for virulence on the two major barley stem rust resistance genes/loci, Rpg1 and the rpg4/5-mediated resistance locus (RMRL) at the seedling stage. Of these isolates, 99% were virulent on cultivar Morex containing the Rpg1 gene, 62% were virulent on Golden Promise transgenic line (H228.2c) carrying a single copy of the Rpg1 gene from Morex, 16% were virulent on the near isogenic line, HQ-1 containing RMRL, and 10% were virulent on barley line Q21861 carrying both Rpg1 and RMRL. This was the first report of Pgt isolates containing virulence on both Rpg1 and RMRL when stacked together, representing the most virulent Pgt population reported on barley worldwide. To identify and map effective resistances against the local virulent isolates, a genome wide association study (GWAS) was conducted on 440 accessions from the World Barley Core Collection (WBCC), genotyped with the 9K Illumina barley iSelect chip and phenotyped with two PNW Pgt isolates at the seedling stage. A total of 10 resistance loci were identified including four novel loci on chromosomes 1H, 2H, 5H, and 6H. On the pathogen side, GWAS was performed using 113 diverse Pgt isolates, collected from the PNW and the Midwest region of the US, to identify virulence and avirulence loci corresponding to the barley stem rust resistance gene Rpg1 and the six wheat stem rust R-genes, Sr5, Sr21, Sr8a, Sr17, Sr9a, and Sr9d. The genotype data for 96 isolates were generated by whole genome shotgun sequencing and for 17 isolates by RNA sequencing. The phenotype data for the Pgt isolates were collected by seedling disease assays on two barley lines, H228.2c and Morex (Rpg1+) and the six wheat stem rust differential lines, Sr5, Sr21, Sr8a, Sr17, Sr9a, and Sr9d. A total of five effector gene candidates were identified at two loci corresponding to the Rpg1 gene. Similarly, 24 putative effector genes were identified at 15 loci corresponding to the six wheat R-genes. Further characterization of these genes will be done to enhance our understanding of host pathogen interactions in both the barley-Pgt and wheat-Pgt pathosystems.

International Triticeae Mapping Initiative Workshop, 21. Book of Abstracts; Mexico, DF (Mexico); 5-9 September 2011

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Publisher : CIMMYT
ISBN 13 : 9706481796
Total Pages : 153 pages
Book Rating : 4.7/5 (64 download)

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Book Synopsis International Triticeae Mapping Initiative Workshop, 21. Book of Abstracts; Mexico, DF (Mexico); 5-9 September 2011 by :

Download or read book International Triticeae Mapping Initiative Workshop, 21. Book of Abstracts; Mexico, DF (Mexico); 5-9 September 2011 written by and published by CIMMYT. This book was released on with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Stripe Rust

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Publisher : Springer
ISBN 13 : 9402411119
Total Pages : 723 pages
Book Rating : 4.4/5 (24 download)

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Book Synopsis Stripe Rust by : Xianming Chen

Download or read book Stripe Rust written by Xianming Chen and published by Springer. This book was released on 2017-07-11 with total page 723 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprehensively introduces stripe rust disease, its development and its integral control. Covering the biology, genetics, genome, and functional genomics of the pathogen, it also discusses host and non-host resistance, their interactions and the epidemiology of the disease. It is intended for scientists, postgraduates and undergraduate studying stripe rust, plant pathology, crop breeding, crop protection and agricultural science, but is also a valuable reference book for consultants and administrators in agricultural businesses and education.

Innovative Approaches in Diagnosis and Management of Crop Diseases

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Publisher : CRC Press
ISBN 13 : 1000407748
Total Pages : 394 pages
Book Rating : 4.0/5 (4 download)

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Book Synopsis Innovative Approaches in Diagnosis and Management of Crop Diseases by : R. K. Singh

Download or read book Innovative Approaches in Diagnosis and Management of Crop Diseases written by R. K. Singh and published by CRC Press. This book was released on 2021-09-28 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the third of the 3-volume Innovative Approaches in Diagnosis and Management of Crop Diseases, which provides an abundance of new research and information on major diseases of various crops along with new techniques and technology for the detection of plant pathogens along with appropriate management strategies. Divided into three volumes and with chapters written by renowned and expert scientists working in different areas of plant pathology, the volumes cover important diseases of crops, incited by bacteria, fungi, viruses, viroids, phytoplasma, and nematodes. This multi-volume set addresses these disease challenges to commercial field and horticultural crops and their management. Volume 3: Nanomolecules and Biocontrol Agents explores the use of new ways to prevent and mitigate plant diseases. These include novel green nanotechnologies; biosensors; biological management using phyllosphere-, rhizosphere-, and endosphere-derived biocontrol agents; employing biofumigation techniques; and plant immunization approaches. The book also considers the special challenge of plant disease management under the present climate change scenario. Key features: Presents diverse research of leading plant pathologists on detection, diagnosis, and management of crop diseases Shares innovative and emerging techniques for diagnosis and management of major plant diseases Covers a vast array of important crops and their diseases Volume 1 of the 3-volume set focuses on the Mollicute class of bacteria. It looks at the detection, diagnosis, and management of phytoplasma diseases and viroids, CRISPR-Cas9 genome editing in plants for virus resistance, next-generation sequencing technologies, and more, while Volume 3 reviews the advances in the uses of nanomolecules and biocontrol agents. Diagnosis and management of biotic stresses play a pivotal role in efficient agriculture production, and together, these volumes of Innovative Approaches in Diagnosis and Management of Crop Diseases provide reviews of crucial research to effectively advance the detection, diagnosis, and management of crop diseases.

Disease Resistance in Wheat

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Publisher : CABI
ISBN 13 : 9781845939694
Total Pages : 334 pages
Book Rating : 4.9/5 (396 download)

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Book Synopsis Disease Resistance in Wheat by : Indu Sharma

Download or read book Disease Resistance in Wheat written by Indu Sharma and published by CABI. This book was released on 2012-01-01 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Disease resistance is one of the major factors that can be improved to sustain yield potential in cultivated crops. This book looks at disease resistance in wheat, concentrating on all the economically important diseases - their economic impact and geographical spread, breeding for resistance, pathogen variability, resistance mechanisms and recent advances made on resistance genes. Newer strategies for identifying resistance genes and identify resistance mechanisms are discussed, including cloning, gene transfer and the use of genetically modified plants. It is suitable for researchers and stu.

Breeding Strategies for Resistance to the Rusts of Wheat

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Publisher : CIMMYT
ISBN 13 : 9789686127232
Total Pages : 164 pages
Book Rating : 4.1/5 (272 download)

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Book Synopsis Breeding Strategies for Resistance to the Rusts of Wheat by : International Maize and Wheat Improvement Center

Download or read book Breeding Strategies for Resistance to the Rusts of Wheat written by International Maize and Wheat Improvement Center and published by CIMMYT. This book was released on 1988 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Advances in Agronomy

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Publisher : Elsevier
ISBN 13 : 0080888143
Total Pages : 445 pages
Book Rating : 4.0/5 (88 download)

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Book Synopsis Advances in Agronomy by :

Download or read book Advances in Agronomy written by and published by Elsevier. This book was released on 2008-06-20 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Agronomy continues to be recognized as a leading reference and a first-rate source for the latest research in agronomy. As always, the subjects covered are varied and exemplary of the myriad of subject matter dealt with by this long-running serial. Maintains the highest impact factor among serial publications in agriculture Presents timely reviews on important agronomy issues Enjoys a long-standing reputation for excellence in the field

Managing Alternative Pollinators

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Publisher :
ISBN 13 : 9781933395203
Total Pages : 162 pages
Book Rating : 4.3/5 (952 download)

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Book Synopsis Managing Alternative Pollinators by : Eric Mader

Download or read book Managing Alternative Pollinators written by Eric Mader and published by . This book was released on 2010 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Examines the history of the British fire service from 1800-1980, embracing certain key themes of modern British history: the impact of industrial change on urban development, the effect of disaster on political reform, the growth of the state, and the relationship between masculinity and trade unionism in creating a professional identity"--Provided by publisher.

Wheat Rusts

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Publisher : CSIRO PUBLISHING
ISBN 13 : 0643103023
Total Pages : 308 pages
Book Rating : 4.6/5 (431 download)

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Book Synopsis Wheat Rusts by : RA McIntosh

Download or read book Wheat Rusts written by RA McIntosh and published by CSIRO PUBLISHING. This book was released on 1995-01-01 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although stem rust has been controlled by means of resistant cultivars, leaf and stripe rust continue as problems for many growing areas of the world. Wheat Rusts: An Atlas of Resistance Genes has been prepared by specialists from one of the leading international laboratories, and illustrates with colour photographs typical resistance phenotypes associated with most known genes for resistance to the three rust diseases of wheat. Relevant details for each gene include chromosome location, aspects of genetics and pathogen variation, the effects of environment on expression, origin, availability in genetic and breeding stocks, and use in agriculture. This atlas includes an introduction to host:pathogen genetics, methodologies for wheat rust research and breeding for resistance.

Rust Diseases of Wheat

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Publisher : CIMMYT
ISBN 13 : 9789686127478
Total Pages : 92 pages
Book Rating : 4.1/5 (274 download)

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Book Synopsis Rust Diseases of Wheat by : Alan P. Roelfs

Download or read book Rust Diseases of Wheat written by Alan P. Roelfs and published by CIMMYT. This book was released on 1992 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Cockroaches

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Publisher : JHU Press
ISBN 13 : 0801891752
Total Pages : 781 pages
Book Rating : 4.8/5 (18 download)

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Book Synopsis Cockroaches by : William J. Bell

Download or read book Cockroaches written by William J. Bell and published by JHU Press. This book was released on 2007-07-27 with total page 781 pages. Available in PDF, EPUB and Kindle. Book excerpt: The essential volume on the biology and behavior of these remarkable insects. “This transformative work will be an inspiration to students of entomology.” —Choice The cockroach is truly an evolutionary wonder. This definitive volume provides a complete overview of suborder Blattaria, highlighting the diversity of these amazing insects in their natural environments. Beginning with a foreword by Edward O. Wilson, the book explores the fascinating natural history and behavior of cockroaches, describing their various colors, sizes, and shapes, as well as how they move on land, in water, and through the air. In addition to habitat use, diet, reproduction, and behavior, Cockroaches covers aspects of cockroach biology, such as the relationship between cockroaches and microbes, termites as social cockroaches, and the ecological impact of the suborder. With over 100 illustrations, an expanded glossary, and an invaluable set of references, this work is destined to become the classic book on the Blattaria. Students and research entomologists can mine each chapter for new ideas, new perspectives, and new directions for future study. “Well-written . . . visually attractive . . . This book is much needed to educate biologists about the fascinating biology and diversity of cockroaches.” —Integrative and Comparative Biology “A must-have for any insect hobbyest.” —Allpet Roaches Forum “This contribution is an important source of information on cockroach natural history and diversity.” —The Quarterly Review of Biology “Suitable for researchers, students, and naturalists, chapters are topical, exploring the diversity of cockroaches.” —Southeastern Naturalist

Phenotyping for Plant Breeding

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Publisher : Springer Science & Business Media
ISBN 13 : 1461483204
Total Pages : 220 pages
Book Rating : 4.4/5 (614 download)

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Book Synopsis Phenotyping for Plant Breeding by : Siva Kumar Panguluri

Download or read book Phenotyping for Plant Breeding written by Siva Kumar Panguluri and published by Springer Science & Business Media. This book was released on 2013-10-09 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant phenotyping is the thorough assessment of plant traits such as growth, development, adaptation, yield, quality, tolerance, resistance, architecture, and the basic measurement of individual quantitative parameters that form the basis for understanding of traits. Genetic approaches to understand plant growth and development have always benefitted from phenotyping techniques that are simple, rapid and measurable in units. The forward genetics approach is all about understanding the trait inheritance using the phenotypic data and in most cases it is the mutant phenotypes that formed the basis for understanding of gene functions. With rapid advancement of genotyping techniques, high throughput genotyping has become a reality at costs people never imagined to be that low, but the phenotypic methods did not receive same attention. However, without quality phenotyping data the genotyping data cannot be effectively put to use in plant improvement. Therefore efforts are underway to develop high-throughput phenotyping methods in plants to keep pace with revolutionary advancement in genotyping techniques to enhance the efficiency of crop improvement programs. Keeping this in mind, we described in this book the best phenomic tools available for trait improvement in some of the world’s most important crop plants.

Beavers: Boreal Ecosystem Engineers

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Publisher : Springer
ISBN 13 : 3319615335
Total Pages : 303 pages
Book Rating : 4.3/5 (196 download)

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Book Synopsis Beavers: Boreal Ecosystem Engineers by : Carol A. Johnston

Download or read book Beavers: Boreal Ecosystem Engineers written by Carol A. Johnston and published by Springer. This book was released on 2017-08-28 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridging the fields of ecosystem science and landscape ecology, this book integrates Dr. Carol Johnston's research on beaver ecosystem alteration at Voyageurs National Park. The findings about the vegetation, soils, and chemistry of beaver impoundments synthesized in the text provide a cohesive reference useful to wetland scientists, ecosystems and landscape ecologysts, wildlife managers, and students. The beaver, Castor canadensis, is an ecosystem engineer unequaled in its capacity to alter landscapes through browsing and dam building, whose population recovery has re-established environmental conditions that probably existed for millenia prior to its near extirpation by trapping in the 1800s and 1900s. Beavers continue to regain much of their natural range throughout North America, changing stream and forest ecosystems in ways that may be lauded or vilified. Interest in beavers by ecologists remains keen as new evidence emerges about the ecological, hydrological, and biogeochemical effects of beaver browsing and construction. There is a critical need for ecologists and land managers to understand the potential magnitude, persistence, and ecosystem services of beaver landscape transformation. The 88-year record of beaver landscape occupation and alteration documented by Dr. Carol Johnston and colleagues from aerial photography and field work provides a unique resource toward understanding the ecosystem effects and sustainability of beaver activity.

An Ecological Characterization of Rocky Mountain Montane and Subalpine Wetlands

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Publisher :
ISBN 13 :
Total Pages : 348 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis An Ecological Characterization of Rocky Mountain Montane and Subalpine Wetlands by :

Download or read book An Ecological Characterization of Rocky Mountain Montane and Subalpine Wetlands written by and published by . This book was released on 1986 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Stem Rust of Wheat

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Publisher : American Phytopathological Society
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Stem Rust of Wheat by : Paul David Peterson

Download or read book Stem Rust of Wheat written by Paul David Peterson and published by American Phytopathological Society. This book was released on 2001 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wheat rust diseases have been among the most devastating of all plant diseases since biblical times. Now that nearly a half century has passed without a significant outbreak in the world's major wheat- producing regions, forward writer Nobel laureate Norman Borlaug cautions against complacency. Four contributed chapters examine how the science of plant pathology has responded to such challenges as stem rust of wheat epidemics in the North American Great Plains in the first half of the 20th century, and common barberry as an insidious spreader of black stem rust. Includes photos of plant pathologists and their research in the field (literally). c. Book News Inc.

Impacts of International Wheat Breeding Research in the Developing World, 1988-2002

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Publisher : CIMMYT
ISBN 13 : 970648129X
Total Pages : 65 pages
Book Rating : 4.7/5 (64 download)

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Book Synopsis Impacts of International Wheat Breeding Research in the Developing World, 1988-2002 by : Maximina A. Lantican

Download or read book Impacts of International Wheat Breeding Research in the Developing World, 1988-2002 written by Maximina A. Lantican and published by CIMMYT. This book was released on 2005 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: