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Qtl Analysis Of Wheat Leaf Rust Resistance In The Lakin X Roelfs F2007 Backcross Population
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Book Synopsis QTL Analysis of Wheat Leaf Rust Resistance in the 'Lakin' X 'Roelfs F2007' Backcross Population by : Joseph Hahn
Download or read book QTL Analysis of Wheat Leaf Rust Resistance in the 'Lakin' X 'Roelfs F2007' Backcross Population written by Joseph Hahn and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Leaf rust, caused by the fungus Puccinia triticina, is a major disease of wheat in North America. Breeding efforts to achieve resistance have historically been plagued by a cycle in which an all-stage resistance gene is discovered, deployed, and rapidly defeated, thus wasting valuable sources of resistance. Adult-plant resistance genes, however, can potentially contribute to race-nonspecific resistance to the pathogen which is durable for many years. In this study, the moderately susceptible Kansas winter wheat cultivar, 'Lakin', was backcrossed to the CIMMYT-developed spring wheat cultivar, 'Roelfs F2007', which is known to possess very good adult-plant resistance (APR) to leaf rust. The 297 BC1F6-derived progeny of this cross were screened for resistance in five location-years at field nurseries in Kansas and Texas, as well as in two greenhouse studies. Genotyping-by-Sequencing (GBS) generated 2,541 high-quality genome-wide markers used for the construction of a linkage map covering all 21 chromosomes. Quantitative trait locus (QTL) analysis identified reproducible APR QTLs on chromosome arms 3BS, 5DS, 7BS, and 7BL. Three QTLs contributed by Roelfs F2007 appeared to correspond to locations of known APR genes Lr74 (3BS), Lr78 (5DS), and Lr68 (7BL). The APR QTL on 7BS contributed by Lakin appeared to be novel. Together, the four QTLs accounted for 45% and 46% of the variation in least-squares means for disease severity and infection type, respectively. These results confirm that both Roelfs F2007 and Lakin contain APR loci which may be used in breeding for resistance to infections by P. triticina.
Book Synopsis Genetic Mapping of Quantitative Trait Loci for Slow-rusting Traits in Wheat by : Yue Lu
Download or read book Genetic Mapping of Quantitative Trait Loci for Slow-rusting Traits in Wheat written by Yue Lu and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Wheat leaf rust, caused by Puccinia triticina, is an important fungal disease worldwide. Growing resistant cultivars is an effective practice to reduce the losses caused by the disease, and using slow-rusting resistance genes can improve the durability of rust resistance in the cultivars. CI13227 is a winter wheat line that shows a high level of slow-rusting resistance to leaf rust and has been studied extensively. In this research, two recombinant inbreed line (RIL) populations derived from CI13227 x Suwon (104 RILs) and CI13227 x Everest (184 RILs) and one doubled haploid (DH) population derived from CI13227 x Lakin with 181 lines were used to identify quantitative trait loci (QTLs) for slow leaf rusting resistance. Each population and its parents were evaluated for slow-rusting traits in two greenhouse experiments. A selected set of 384 simple sequence repeat markers (SSRs), single nucleotide polymorphism markers (SNPs) derived from genotyping-by-sequencing (GBS-SNPs) or 90K-SNP chip (90K-SNPs) were analyzed in the three populations. Six QTLs for slow-rusting resistance, QLr.hwwgru-2DS, QLr.hwwgru-7BL, QLr.hwwgru-7AL, QLr.hwwgru-3B_1, QLr.hwwgru-3B_2, and QLr.hwwgru-1D were detected in the three populations with three stable QTLs, QLr.hwwgru-2DS, QLr.hwwgru-7BL and QLr.hwwgru-7AL. These were detected and validated by Kompetitive Allele-Specific PCR (KASP) markers converted from GBS-SNPs and 90K-SNPs in at least two populations. Another three QTLs were detected only in a single population, and either showed a minor effect or came from the susceptible parents. The KASP markers tightly linked to QLr.hwwgru-2DS (IWB34642, IWB8545 and GBS_snpj2228), QLr.hwwgru-7BL (GBS_snp1637 and IWB24039) and QLr.hwwgru-7AL (IWB73053 and IWB42182) are ready to be used in marker-assisted selection (MAS) to transfer these QTLs into wheat varieties to improve slow-rusting resistance in wheat.
Book Synopsis Advances in Wheat Genetics: From Genome to Field by : Yasunari Ogihara
Download or read book Advances in Wheat Genetics: From Genome to Field written by Yasunari Ogihara and published by Springer. This book was released on 2015-09-15 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings is a collection of 46 selected papers that were presented at the 12th International Wheat Genetics Symposium (IWGS). Since the launch of the wheat genome sequencing project in 2005, the arrival of draft genome sequences has marked a new era in wheat genetics and genomics, catalyzing rapid advancement in the field. This book provides a comprehensive review of the forefront of wheat research, across various important topics such as germplasm and genetic diversity, cytogenetics and allopolyploid evolution, genome sequencing, structural and functional genomics, gene function and molecular biology, biotic stress, abiotic stress, grain quality, and classical and molecular breeding. Following an introduction, 9 parts of the book are dedicated to each of these topics. A final, 11th part entitled “Toward Sustainable Wheat Production” contains 7 excellent papers that were presented in the 12th IWGS Special Session supported by the OECD. With rapid population growth and radical climate changes, the world faces a global food crisis and is in need of another Green Revolution to boost yields of wheat and other widely grown staple crops. Although this book focuses on wheat, many of the newly developed techniques and results presented here can be applied to other plant species with large and complex genomes. As such, this volume is highly recommended for all students and researchers in wheat sciences and related plant sciences and for those who are interested in stable food production and food security.
Book Synopsis Sustainable Management of Arthropod Pests of Tomato by : Waqas Wakil
Download or read book Sustainable Management of Arthropod Pests of Tomato written by Waqas Wakil and published by Academic Press. This book was released on 2017-11-19 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainable Management of Arthropod Pests of Tomato provides insight into the proper and appropriate application of pesticides and the integration of alternative pest management methods. The basis of good crop management decisions is a better understanding of the crop ecosystem, including the pests, their natural enemies, and the crop itself. This book provides a global overview of the biology and management of key arthropod pests of tomatoes, including arthropod-vectored diseases. It includes information that places tomatoes in terms of global food production and food security, with each pest chapter including the predators and parasitoids that have specifically been found to have the greatest impact on reducing that particular pest. In-depth coverage of the development of resistance in tomato plants and the biotic and abiotic elicitors of resistance and detailed information about the sustainable management of tomato pests is also presented. Provides basic biological and management information for arthropod pests of tomato from a global perspective, encompassing all production types (field, protected, organic) Includes chapters on integrated management of tomato pests and specific aspects of tomato pest management, including within protected structures and in organic production Presents management systems that have been tested in the real-world by the authors of each chapter Fully illustrated throughout with line drawings and color plates that illustrate key pest and beneficial arthropods associated with tomato production around the world
Book Synopsis Genetic and Genomic Resources of Grain Legume Improvement by : Mohar Singh
Download or read book Genetic and Genomic Resources of Grain Legume Improvement written by Mohar Singh and published by Newnes. This book was released on 2013-07-18 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grain legumes, including common-bean, chickpea, pigeonpea, pea, cowpea, lentil and others, form important constituents of global diets, both vegetarian and non-vegetarian. Despite this significant role, global production has increased only marginally in the past 50 years. The slow production growth, along with a rising human population and improved buying capacity has substantially reduced the per capita availability of food legumes. Changes in environmental climate have also had significant impact on production, creating a need to identify stable donors among genetic resources for environmentally robust genes and designing crops resilient to climate change. Genetic and Genomic Resources of Grain Legume Improvement is the first book to bring together the latest resources in plant genetics and genomics to facilitate the identification of specific germplasm, trait mapping and allele mining to more effectively develop biotic and abiotic-stress-resistant grains. This book will be an invaluable resource for researchers, crop biologists and students working with crop development. Explores origin, distribution and diversity of grain legumes Presents information on germplasm collection, evaluation and maintenance Offers insight into pre-breeding/germplasm enhancement efforts Integrates genomic and genetic resources in crop improvement Internationally contributed work
Book Synopsis Genomics-Assisted Crop Improvement by : R.K. Varshney
Download or read book Genomics-Assisted Crop Improvement written by R.K. Varshney and published by Springer Science & Business Media. This book was released on 2007-12-12 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: This superb volume provides a critical assessment of genomics tools and approaches for crop breeding. Volume 1 presents the status and availability of genomic resources and platforms, and also devises strategies and approaches for effectively exploiting genomics research. Volume 2 goes into detail on a number of case studies of several important crop and plant species that summarize both the achievements and limitations of genomics research for crop improvement.
Book Synopsis Compendium of Alfalfa Diseases by : Donald L. Stuteville
Download or read book Compendium of Alfalfa Diseases written by Donald L. Stuteville and published by American Phytopathological Society. This book was released on 1990 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Infectious diseases. Diseases caused by bacteria and mycoplasmalike organisms. Diseases caused by fungi. Fungal diseases that principally occur on seeds and seedlings. Fungal diseases that principally occur on leaves and stems. Fungal diseases that principally occur on lower stems and crowns. Fungal diseases that principally occur on crowns and roots. Other fungi associated with alfalfa. Diseases caused by nematodes. Diseases caused by viruses and viruses infectious to alfalfa. Parasitic flowering plants. Noninfectious diseases. Diseases caused by biotic agents. Insect injuries. Diseases caused by abiotic agents. Guide to the identification of biotic diseases.
Book Synopsis Handbook of Small Grain Insects by : G. David Buntin
Download or read book Handbook of Small Grain Insects written by G. David Buntin and published by . This book was released on 2007 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Small Grain Insects is the sixth in a series of handbooks from the Entomological Society of America that comprehensively examines agricultural pest management from all angles--magnifying practical field strategies for growers, updating growers on the latest protection techniques, and preventing needless crop loss as a result of outdated pest control procedures.
Book Synopsis Durum Wheat Breeding by : Conxita Royo
Download or read book Durum Wheat Breeding written by Conxita Royo and published by CRC Press. This book was released on 2005-11-07 with total page 571 pages. Available in PDF, EPUB and Kindle. Book excerpt: Is your knowledge about this important grain crop up to date? This comprehensive two-volume resource reviews the latest advances in scientific and technical knowledge for durum wheat breeding. With a scope of coverage that includes genetics and molecular biology, plant and crop physiology, and breeding strategies and methodology, Dur
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.
Book Synopsis Guide to Bread Wheat Breeding at CIMMYT by : Maarten van Ginkel
Download or read book Guide to Bread Wheat Breeding at CIMMYT written by Maarten van Ginkel and published by CIMMYT. This book was released on 1998 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wheat Breeding written by F. Lupton and published by Springer. This book was released on 2014-11-14 with total page 575 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Utilizing Wild Grass Biodiversity in Wheat Improvement by : A. Mujeeb-Kazi
Download or read book Utilizing Wild Grass Biodiversity in Wheat Improvement written by A. Mujeeb-Kazi and published by CIMMYT. This book was released on 1995 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :International Maize and Wheat Improvement Center Publisher :CIMMYT ISBN 13 :9789686127232 Total Pages :164 pages Book Rating :4.1/5 (272 download)
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:
Book Synopsis Genomics-Assisted Crop Improvement by : Rajeev K. Varshney
Download or read book Genomics-Assisted Crop Improvement written by Rajeev K. Varshney and published by Springer Science & Business Media. This book was released on 2007-12-13 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: This superb volume provides a critical assessment of genomics tools and approaches for crop breeding. Volume 1 presents the status and availability of genomic resources and platforms, and also devises strategies and approaches for effectively exploiting genomics research. Volume 2 goes into detail on a number of case studies of several important crop and plant species that summarize both the achievements and limitations of genomics research for crop improvement.
Book Synopsis Impacts of International Wheat Breeding Research in the Developing World, 1966-1990 by : Derek Byerlee
Download or read book Impacts of International Wheat Breeding Research in the Developing World, 1966-1990 written by Derek Byerlee and published by CIMMYT. This book was released on 1993 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Indicators of Wheat Genetic Diversity and Germplasm Use in the People's Republic of China by : Ning Yang
Download or read book Indicators of Wheat Genetic Diversity and Germplasm Use in the People's Republic of China written by Ning Yang and published by CIMMYT. This book was released on 1996 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
