Genetics Of Seedling Resistance To Stem Rust Puccinia Graminis Of Sptritici Pers Eriks And Henn In Wheat Desf

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Genetic and virulence diversity of Puccinia graminis f. sp. Tritici populations in Ethiopia and stem rust resistance genes in wheat

Author : Belayneh Admassu Yimer
Publisher : Cuvillier Verlag
ISBN 13 : 3736932936
Total Pages : 110 pages
Book Rating : 4.7/5 (369 download)

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Book Synopsis Genetic and virulence diversity of Puccinia graminis f. sp. Tritici populations in Ethiopia and stem rust resistance genes in wheat by : Belayneh Admassu Yimer

Download or read book Genetic and virulence diversity of Puccinia graminis f. sp. Tritici populations in Ethiopia and stem rust resistance genes in wheat written by Belayneh Admassu Yimer and published by Cuvillier Verlag. This book was released on 2010-03-23 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a result of a recent spread of a new and highly virulent race of Puccinia graminis f. sp. tritici called Ug99, stem rust is becoming a serious threat to wheat production in Ethiopia and other east African countries. Therefore, there is an urgent need to analyse the virulence spectrum of Pgt populations in Ethiopia. Wheat stem rust samples were collected in 2006 and 2007 in Arsi, Bale, Shewa and the Northwest regions of Ethiopia to determine the virulence diversity and race distribution in P. graminis f. sp. tritici populations. Stem rust incidence was high in Arsi, Bale and East Shewa. In Northwest Ethiopia, and North and West Shewa, stem rust was prevalent at low levels. A total of 152 isolates was analyzed and 22 races were identified. Races TTKSR (Ug99), TTHSR and RRTTR were predominant with frequencies of 26.6, 17.7 and 11.1%, respectively. These races were also detected in all regions. It turned out that the highly virulent race designated as Ug99 was present throughout the country and dominated in all regions except Northwest Ethiopia. A variant of Ug99, which is virulent against Sr24 was not detected in this study. Four stem rust resistance genes (Sr13, Sr30, Sr36 and SrTmp) were found to confer resistance to most of the races prevalent in Ethiopia. With the exception of Sr30, which is not effective to Ug99, the other three genes can be used in breeding for resistance to stem rust in Ethiopia.

Disease Resistance in Crop Plants

Author : Shabir Hussain Wani
Publisher : Springer
ISBN 13 : 3030207285
Total Pages : 314 pages
Book Rating : 4.0/5 (32 download)

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Book Synopsis Disease Resistance in Crop Plants by : Shabir Hussain Wani

Download or read book Disease Resistance in Crop Plants written by Shabir Hussain Wani and published by Springer. This book was released on 2019-07-24 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Human population is escalating at an enormous pace and is estimated to reach 9.7 billion by 2050. As a result, there will be an increase in demand for agricultural production by 60–110% between the years 2005 and 2050 at the global level; the number will be even more drastic in the developing world. Pathogens, animals, and weeds are altogether responsible for between 20 to 40 % of global agricultural productivity decrease. As such, managing disease development in plants continues to be a major strategy to ensure adequate food supply for the world. Accordingly, both the public and private sectors are moving to harness the tools and paradigms that promise resistance against pests and diseases. While the next generation of disease resistance research is progressing, maximum disease resistance traits are expected to be polygenic in nature and controlled by selective genes positioned at putative quantitative trait loci (QTLs). It has also been realized that sources of resistance are generally found in wild relatives or cultivars of lesser agronomic significance. However, introgression of disease resistance traits into commercial crop varieties typically involves many generations of backcrossing to transmit a promising genotype. Molecular marker-assisted breeding (MAB) has been found to facilitate the pre-selection of traits even prior to their expression. To date, researchers have utilized disease resistance genes (R-genes) in different crops including cereals, pulses, and oilseeds and other economically important plants, to improve productivity. Interestingly, comparison of different R genes that empower plants to resist an array of pathogens has led to the realization that the proteins encoded by these genes have numerous features in common. The above observation therefore suggests that plants may have co-evolved signal transduction pathways to adopt resistance against a wide range of divergent pathogens. A better understanding of the molecular mechanisms necessary for pathogen identification and a thorough dissection of the cellular responses to biotic stresses will certainly open new vistas for sustainable crop disease management. This book summarizes the recent advances in molecular and genetic techniques that have been successfully applied to impart disease resistance for plants and crops. It integrates the contributions from plant scientists targeting disease resistance mechanisms using molecular, genetic, and genomic approaches. This collection therefore serves as a reference source for scientists, academicians and post graduate students interested in or are actively engaged in dissecting disease resistance in plants using advanced genetic tools.

Fungal Pathology

Author : J.W. Kronstad
Publisher : Springer Science & Business Media
ISBN 13 : 9780792363705
Total Pages : 428 pages
Book Rating : 4.3/5 (637 download)

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Book Synopsis Fungal Pathology by : J.W. Kronstad

Download or read book Fungal Pathology written by J.W. Kronstad and published by Springer Science & Business Media. This book was released on 2000-09-30 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: The pace of research on fungi has been accelerating over the past decade. As a result, molecular, biochemical and cell biological studies have opened up new areas of investigation for many of the most important fungal pathogens of crop plants. Similarly, these approaches have provided new information on fungal pathogens of animals and insects, and on fungal endophytes. The collection of chapters in this book provides an excellent update on recent progress for many of the important plant pathogenic fungi that either cause significant economic problems or that serve as useful experimental organisms for gaining general insights. The inclusion of chapters on other fungi will allow readers to make comparisons and draw parallels between a variety of pathogens. In this regard, this book provides a unique perspective that will be valuable to a wide range of readers from senior undergraduates to senior investigators.

Genetic and Virulence Diversity of Puccinia Graminis F. Sp. Tritici Populations in Ethiopia and Stem Rust Resistance Genes in Wheat

Author : Belayneh Admassu
Publisher :
ISBN 13 : 9783869552934
Total Pages : 99 pages
Book Rating : 4.5/5 (529 download)

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Book Synopsis Genetic and Virulence Diversity of Puccinia Graminis F. Sp. Tritici Populations in Ethiopia and Stem Rust Resistance Genes in Wheat by : Belayneh Admassu

Download or read book Genetic and Virulence Diversity of Puccinia Graminis F. Sp. Tritici Populations in Ethiopia and Stem Rust Resistance Genes in Wheat written by Belayneh Admassu and published by . This book was released on 2010 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Genetic mapping of resistance to race Ug99 of Puccinia graminis f. sp. tritici, diversity analysis and identification of stem rust resistance genes in Ethiopian tetraploid wheats

Download Genetic mapping of resistance to race Ug99 of Puccinia graminis f. sp. tritici, diversity analysis and identification of stem rust resistance genes in Ethiopian tetraploid wheats PDF Online Free

Author : Jemanesh Kifetew Haile
Publisher : Cuvillier Verlag
ISBN 13 : 3736943253
Total Pages : 134 pages
Book Rating : 4.7/5 (369 download)

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Book Synopsis Genetic mapping of resistance to race Ug99 of Puccinia graminis f. sp. tritici, diversity analysis and identification of stem rust resistance genes in Ethiopian tetraploid wheats by : Jemanesh Kifetew Haile

Download or read book Genetic mapping of resistance to race Ug99 of Puccinia graminis f. sp. tritici, diversity analysis and identification of stem rust resistance genes in Ethiopian tetraploid wheats written by Jemanesh Kifetew Haile and published by Cuvillier Verlag. This book was released on 2013-01-15 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ethiopia is the second largest wheat producer in the sub-Saharan Africa. The country is rich in genetic resources of tetraploid wheat and has suitable environments for wheat production. However, the country is a net importer of wheat particularly durum wheat (hard wheat). The demand for durum wheat is continuously increasing because of the new emerging food processing industries. But the productivity of wheat in Ethiopia is low due to biotic and abiotic stresses. Among the biotic factors, diseases particularly stem rust play a significant role in yield reduction. As a result of a recent spread of a new and highly virulent race of Puccinia graminis f. sp. tritici (Pgt), Ug99, stem rust is becoming a serious threat to wheat production in Ethiopia as well as in other East African and wheat producing countries. Therefore, it is important to identify new resistance sources and to apply marker assisted selection for sustainable and efficient control stem rust. The aims of the studies included in this thesis were (i) identification of QTL and test for epistatic effects in a segregating population for resistance to stem rust, (ii) identification of stem rust resistance (Sr) genes that are present in durum wheat (Triticum durum Desf.) varieties that were released in Ethiopia during the period 1966–2009 and tetraploid wheat landraces using linked/diagnostic molecular markers and (iii) Evaluation of genetic diversity and relationship pattern within and among these tetraploid wheat landraces and improved varieties based on SSR/STS markers including those linked with reported stem rust resistance genes and QTL. Across all the three experiments, our study demonstrates that there exist potential germplasm and strategies to combat the threat posed by Ug99 and its derivatives. These results provide useful information to wheat breeders in Ethiopia and other national and international programs, regarding the use of available landraces and released varieties for the enhancement of the genetic base of wheat germplsm. Particularly it will give an alarm for Ethiopian wheat breeders to broaden the genetic base of the varieties that will be released in the future since most of the varieties released for the last five decades have a narrow genetic base. In addition, our research provides a base of knowledge for future QTL and gene mapping conferring resistance to stem rust and the use of the linked markers in marker assisted selection.

The Inheritance of Resistance to Puccinia Graminis in Crosses Between Varieties of Durum Wheat

Author : James Bishop Harrington
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis The Inheritance of Resistance to Puccinia Graminis in Crosses Between Varieties of Durum Wheat by : James Bishop Harrington

Download or read book The Inheritance of Resistance to Puccinia Graminis in Crosses Between Varieties of Durum Wheat written by James Bishop Harrington and published by . This book was released on 1925 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Wheat Rusts

Author : RA McIntosh
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.

Plant Disease Management Strategies for Sustainable Agriculture through Traditional and Modern Approaches

Author : Imran Ul Haq
Publisher : Springer Nature
ISBN 13 : 3030359557
Total Pages : 341 pages
Book Rating : 4.0/5 (33 download)

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Book Synopsis Plant Disease Management Strategies for Sustainable Agriculture through Traditional and Modern Approaches by : Imran Ul Haq

Download or read book Plant Disease Management Strategies for Sustainable Agriculture through Traditional and Modern Approaches written by Imran Ul Haq and published by Springer Nature. This book was released on 2020-02-12 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an account of the classical and recent trends in plant sciences, which have contributed for disease management strategies in plants for sustainable agriculture. Advancements in the disciplines of biological sciences like biotechnology, microbiology, bioinformatics as well as information and communication technology etc has given the new dimensions for the development of new plant disease management strategies. By keeping this perspective in view, the editors collected and compiled the useful, practical and recent information regarding plant disease management from a diverse group of authors from different countries associated with well-reputed scientific, teaching and research organizations with the objective to update and equip the researchers with comprehensive and latest knowledge of plant disease management. This book is based on the knowledge of traditional and modern approaches for plant disease management. It has 15 chapters, each chapter describing the pillar strategies, which may be the possible way for crop protection from diseases.This effort deals with the history and recent trends in plant disease control, plant genetics and physiology in disease prognosis, conventional plant breeding program for disease resistance, synthetic chemicals: major component of plant disease management, biological antagonism: expected safe and sustainable way to manage plant diseases , soil microbes and plant health, conventional and modern technologies for the management of post-harvest diseases, nanobiotechnology, an innovative plant disease management approach, transgenic approaches in plants: strategic control for disease management, exploiting RNAi mechanism in plants for disease resistance, genome editing technologies for resistance against phytopathogens: principles, applications and future prospects, plant health clinics in Pakistan: operations and prospects, precision agriculture technologies for management of plant disease, quarantine and regulations and development and implementation of IDM program for annual and perennial crops.

Disease Resistance in Plants

Author : J.E. Vanderplank
Publisher : Elsevier
ISBN 13 : 0323161987
Total Pages : 209 pages
Book Rating : 4.3/5 (231 download)

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Book Synopsis Disease Resistance in Plants by : J.E. Vanderplank

Download or read book Disease Resistance in Plants written by J.E. Vanderplank and published by Elsevier. This book was released on 2012-12-02 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Disease Resistance in Plants, Second Edition, looks at genetic, epidemiologic, biochemical, and biometric principles for developing new cultivars possessing genetic resistance to diseases. It examines the nature of disease resistance and resistance genes, and it highlights the importance of stabilizing selection, sugar, biotrophy, and necrotrophy to obtain the greatest possible yields. Organized into 17 chapters, this volume begins with an overview of disease resistance in plants and the ways to develop disease-resistant variants. It then discusses unspecific resistance; the resistance gene paradox; susceptibility and resistance within narrow host taxa; phenotypic variation and gene numbers in host plants; discontinuous variation and cytoplasmic inheritance; and experimental difficulties in partitioning variance. The reader is also introduced to epistasis and the structure of virulence in pathogens; the notion of physiological race; how the pathogen adapts to the host; mutation in the pathogen from avirulence to virulence; horizontal and vertical resistance to disease and its epidemiological effects; and the link between protein polymorphism and vertical resistance. In addition, the book discusses genes for susceptibility in the host versus genes for avirulence (or virulence) in the pathogen; sink-induced loss of resistance; high-sugar disease processes and biotrophy; slow rusting of cereal crops; plant resistance against endemic disease; and the accumulation of resistance genes in heterogeneous host populations. This book will be useful to plant pathologists and plant breeders.

Breeding for Disease Resistance

Author : R. Johnson
Publisher : Springer Science & Business Media
ISBN 13 : 9401709548
Total Pages : 200 pages
Book Rating : 4.4/5 (17 download)

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Book Synopsis Breeding for Disease Resistance by : R. Johnson

Download or read book Breeding for Disease Resistance written by R. Johnson and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is an increasing need for an understanding of the fundamental processes involved in the mechanisms by which disease resistances are introduced into crop plants. This book provides a wide-ranging coverage of the successes and failures of the classical techniques; it describes the advances towards modern technology and addresses the problems of pathogen variation. Crop plants that are considered include: cereals (wheat, barley, rice), potatoes, vegetables and soft fruits.

Stem Rust of Wheat

Author : Paul David Peterson
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.

Genetic and Phenotypic Analysis of the Wheat - Puccinia Triticina Eriks. Pathosystem

Author : Sewalem Amogne Mebrate
Publisher : Cuvillier Verlag
ISBN 13 : 3867279829
Total Pages : 96 pages
Book Rating : 4.8/5 (672 download)

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Book Synopsis Genetic and Phenotypic Analysis of the Wheat - Puccinia Triticina Eriks. Pathosystem by : Sewalem Amogne Mebrate

Download or read book Genetic and Phenotypic Analysis of the Wheat - Puccinia Triticina Eriks. Pathosystem written by Sewalem Amogne Mebrate and published by Cuvillier Verlag. This book was released on 2006 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Wheat Rusts — Breeding for Resistance

Author : Douglas R. Knott
Publisher : Springer
ISBN 13 :
Total Pages : 224 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis The Wheat Rusts — Breeding for Resistance by : Douglas R. Knott

Download or read book The Wheat Rusts — Breeding for Resistance written by Douglas R. Knott and published by Springer. This book was released on 1989-04-11 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: The idea for this book was conceived by the late Dr. Irvine A. Watson of the University of Sydney, and he developed the first outline. I was then invited by Dr. Watson to share in its writing. Unfortunately, shortly there after, recurring heart problems forced him to curtail his activities and with draw from the project. He died before the book could be completed. Dr. Watson's intention was to produce a very practical book that would provide wheat breeders with all of the information necessary to breed success fully for resistance to the three wheat rusts: leaf rust, stem rust, and yellow rust. It was intended to be very specific in describing procedures to be used and at the same time provide all of the necessary theoretical background. I hope that I have been successful in meeting these objectives. The book assumes that the reader has some knowledge of plant pathology, genetics, and plant breeding. Extensive use has been made of the literature, but it was not possible to cite all of the papers on a given topic. In making a choice, an attempt was made to choose key papers or more recent papers that provided references to the earlier literature. Acknowledgements This book was written partly at the University of Saskatchewan and partly at the University of California, Davis, while I was on a sabbatical leave.

Disease Resistance in Wheat

Author : Indu Sharma
Publisher : CABI
ISBN 13 : 1845938186
Total Pages : 334 pages
Book Rating : 4.8/5 (459 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 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.

Resistance and Virulence Relationships in the Triticum Aestivum: Puccinia Graminis Tritici System

Author : Jon Michael Prescott
Publisher :
ISBN 13 :
Total Pages : 158 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Resistance and Virulence Relationships in the Triticum Aestivum: Puccinia Graminis Tritici System by : Jon Michael Prescott

Download or read book Resistance and Virulence Relationships in the Triticum Aestivum: Puccinia Graminis Tritici System written by Jon Michael Prescott and published by . This book was released on 1970 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Breeding Varieties Resistant to Disease

Author : Commonwealth Bureau of Plant Breeding and Genetics (Cambridge, England)
Publisher :
ISBN 13 :
Total Pages : 102 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Breeding Varieties Resistant to Disease by : Commonwealth Bureau of Plant Breeding and Genetics (Cambridge, England)

Download or read book Breeding Varieties Resistant to Disease written by Commonwealth Bureau of Plant Breeding and Genetics (Cambridge, England) and published by . This book was released on 1930 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Wheat Rusts

Author : R.A. McIntosh
Publisher : Springer
ISBN 13 : 9789401100830
Total Pages : 0 pages
Book Rating : 4.1/5 (8 download)

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Book Synopsis Wheat Rusts by : R.A. McIntosh

Download or read book Wheat Rusts written by R.A. McIntosh and published by Springer. This book was released on 1995-09-14 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although stem rust is mostly controlled by means of resistance cultivars, leaf and stripe rust continue to be major problems in many wheat-growing areas of the world. Wheat Rusts: An Atlas of Resistance Genes provides a basis to identify genes for resistance to stem, leaf and stripe rusts of wheat. Typical phenotypes associated with most known genes for resistance to the three rust diseases of wheat are illustrated in full colour. This book will assist the plant breeder to identify candidate resistance genes, thereby saving substantial time and resources before a single cross is made for genetic analysis. Prepared by well-known specialists from a leading international laboratory, Wheat Rusts: An Atlas of Resistance Genes comprises an introductory chapter, details of individual resistance genes, appendices and an index. Details for each gene include chromosome location, aspects of genetics and pathogen variation, the effect of environment on expression, origin, availability in genetic and breeding stocks, and use in agriculture. Audience: All wheat researchers including geneticists, pathologists, breeders and agronomists. This book is a unique and invaluable aid to all involved in developing wheats for resistance to the rust pathogens.