Identification of Root-knot Nematode Resistance Loci in Gossypium Hirsutum Using Simple Sequence Repeats PDF Download
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Author: Sonia Y Del Rio Publisher: ISBN: Category : Languages : en Pages :
Book Description
Gossypium hirsutum, upland cotton, is one of the major crops grown in the United States and the world. Upland cotton is cultivated in areas that are ideal breeding grounds for the difficult to manage, southern root-knot nematode (RKN), Meloidogyne incognita. Host plant resistance is the most effective way to control RKN populations. However, resistance used in most breeding programs stems from a few related sources. Novel sources of resistance have been identified but have yet to be introduced into elite breeding lines or genetically studied. The objectives of this study are two-fold. The first is to develop elite germplasm by introgressing RKN resistance from primitive accessions into modern cotton genotypes via backcrossing. The second is to use simple sequence repeats (SSRs) to identify loci associated with RKN resistance in the primitive accessions. The genotypes used will be: 1) inoculated with M. incognita, 2) phenotypically analyzed by measuring the nematode reproduction as eggs per gram of fresh root and host response using a root gall index, 3) genetically evaluated by using SSR markers to detect polymorphisms between the RKN resistant TX accessions and DP90 (susceptible genotype), and 4) analyzed using linkage and mapping software. Elite germplasm that contains: 1) high yield potential and a high level of RKN- resistance or 2) high fiber quality and RKN-resistance was developed by performing two backcrosses based on phenotypic analyses. A third screen is currently underway to ensure the introgression of the RKN resistance genes. Agronomic tests will need to be done before the germplasm is released. Genetic analyses using SSR-based primer sets of the TX accessions did not yield expected results. Of the 508 primers sets tested, only 31 were polymorphic between the TX accessions and DP90. A bulked segregant analysis approach was used to test the 31 primer sets on the resistant and susceptible bulks of the F2 population but no polymorphisms were seen. However, analyses found that the TX accessions were more genetically similar to Mexico Wild Jack Jones than to Clevewilt 6-3-5. More work needs to be done to understand the mechanism of RKN resistance in the TX accessions. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/149444
Author: Sonia Y Del Rio Publisher: ISBN: Category : Languages : en Pages :
Book Description
Gossypium hirsutum, upland cotton, is one of the major crops grown in the United States and the world. Upland cotton is cultivated in areas that are ideal breeding grounds for the difficult to manage, southern root-knot nematode (RKN), Meloidogyne incognita. Host plant resistance is the most effective way to control RKN populations. However, resistance used in most breeding programs stems from a few related sources. Novel sources of resistance have been identified but have yet to be introduced into elite breeding lines or genetically studied. The objectives of this study are two-fold. The first is to develop elite germplasm by introgressing RKN resistance from primitive accessions into modern cotton genotypes via backcrossing. The second is to use simple sequence repeats (SSRs) to identify loci associated with RKN resistance in the primitive accessions. The genotypes used will be: 1) inoculated with M. incognita, 2) phenotypically analyzed by measuring the nematode reproduction as eggs per gram of fresh root and host response using a root gall index, 3) genetically evaluated by using SSR markers to detect polymorphisms between the RKN resistant TX accessions and DP90 (susceptible genotype), and 4) analyzed using linkage and mapping software. Elite germplasm that contains: 1) high yield potential and a high level of RKN- resistance or 2) high fiber quality and RKN-resistance was developed by performing two backcrosses based on phenotypic analyses. A third screen is currently underway to ensure the introgression of the RKN resistance genes. Agronomic tests will need to be done before the germplasm is released. Genetic analyses using SSR-based primer sets of the TX accessions did not yield expected results. Of the 508 primers sets tested, only 31 were polymorphic between the TX accessions and DP90. A bulked segregant analysis approach was used to test the 31 primer sets on the resistant and susceptible bulks of the F2 population but no polymorphisms were seen. However, analyses found that the TX accessions were more genetically similar to Mexico Wild Jack Jones than to Clevewilt 6-3-5. More work needs to be done to understand the mechanism of RKN resistance in the TX accessions. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/149444
Author: Ibrokhim Y. Abdurakhmonov Publisher: BoD – Books on Demand ISBN: 9535116223 Category : Medical Languages : en Pages : 324
Book Description
Preservation of plant germplasm resources is vitally important for mankind to supply food and product security in the globalization and technological advances of the 21st century. Mankind preserved a wealth of available genetic resources of many plant species worldwide. One of the such worldwide plant germplasm resources is available for cotton, a unique natural fiber producing cash crop for mankind. Worldwide cotton germplasm collections exist in Australia, Brazil, China, India, France, Pakistan, Turkey, Russia, United States of America, and Uzbekistan. The objective of World Cotton Germplasm Resources book is to present readers with updated information on existing cotton germplasm resources, highlighting detailed inventory, description, storage conditions, characterization and utilization as well as challenges and perspectives. This book should be a comprehensive encyclopedic reading source for plant research community and students to gather important information on worldwide cotton germplasm resources.
Author: John Jones Publisher: Springer Science & Business Media ISBN: 9400704348 Category : Science Languages : en Pages : 563
Book Description
This book reviews developments in the molecular biology of plant-nematode interactions that have been driven by the application of genomics tools. The book will be of interest to postgraduate students and to researchers with an interest in plant nematology and/or plant pathology more generally. A series of introductory chapters provide a biological context for the detailed reviews of all areas of plant-nematode interactions that follow and ensure that the bulk of the book is accessible to the non-specialist. A final section aims to show how these fundamental studies have provided outputs of practical relevance.
Author: Ibrokhim Y. Abdurakhmonov Publisher: BoD – Books on Demand ISBN: 9535127365 Category : Medical Languages : en Pages : 312
Book Description
Cotton is the most important natural fiber crop of our planet, which provides humanity with cloth and vegetable oil, medicinal compounds, meal and hull for livestock feed, energy sources, organic matter to enrich soil, and industrial lubricants. Therefore, cotton research to improve sustainable cotton production worldwide is the vital task of scientific community to address the increasing demands and needs for cotton products. This Cotton Research book presents readers updated information and advances in current cotton science investigations. Chapters of this book provide the latest developments on cotton research and cover topics on cotton research infrastructure, physiology and agronomy, breeding and genetics, modern biotechnology, genomics and molecular breeding, crop management, and cotton-based product and textile researches.
Author: Publisher: ScholarlyEditions ISBN: 1464963789 Category : Medical Languages : en Pages : 4258
Book Description
Issues in Genetic Medicine / 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Genetic Medicine. The editors have built Issues in Genetic Medicine: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Genetic Medicine in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Genetic Medicine: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Author: David D. Fang Publisher: John Wiley & Sons ISBN: 0891186255 Category : Technology & Engineering Languages : en Pages : 816
Book Description
"Cotton, 2nd edition, edited by David D. Fang and Richard G. Percy, is a long awaited, much needed comprehensive update on the science of cotton. This book epitomizes the thorough coverage of an Agronomy Monograph. Readers will find essential coverage of the many scientific advancements in the field, from fiber handling to the transgenic cotton revolution. This amazing and versatile crop, cultivated for more than 7000 years, is one of the most powerful stories in agricultural science. More than 50 experts who contributed to this volume represent the leading edge of this exciting story."
Author: C. Wayne Smith Publisher: John Wiley & Sons ISBN: 9780471180456 Category : Technology & Engineering Languages : en Pages : 882
Book Description
Here is a vital new source of "need-to-know" information for cotton industry professionals. Unlike other references that focus solely on growing the crop, this book also emphasizes the cotton industry as a whole, and includes material on the nature of cotton fibers and their processing; cotton standards and classification; and marketing strategies.
Author: Publisher: Academic Press ISBN: 012417180X Category : Science Languages : en Pages : 461
Book Description
Advances in Botanical Research publishes in-depth and up-to-date reviews on a wide range of topics in plant sciences. Currently in its 73rd volume, the series features several reviews by recognized experts on all aspects of plant genetics, biochemistry, cell biology, molecular biology, physiology and ecology. This thematic volume features reviews on molecular and developmental aspects of the compatible plant-nematode interaction. The contributors all actively work in the field of molecular genetics and genomics of plant parasitic nematodes and nematode feeding sites. Reviews focus on molecular and physiological aspects of nematode feeding site development and includes specific chapters on nematode effectors as well as plant responses. - Publishes in-depth and up-to-date reviews on a wide range of topics in plant sciences - This volume features reviews of the fast moving field of compatible interaction between plants and sedentary endo-parasitic nematodes - A strong focus on molecular and physiological aspects of nematode feeding site development and includes specific chapters on nematode effectors as well as plant responses
Author: Zulqurnain Khan Publisher: CRC Press ISBN: 1000535622 Category : Science Languages : en Pages : 533
Book Description
Cotton Breeding and Biotechnology presents information on one of the most economically important crops of the world, cotton. This book contains chapters on the history of cotton; breeding approaches; technologies for increasing germination, crop growth and yield; and fiber quality issues. It emphasizes sustainable development in the cotton industry analysing the progress of breeding technologies under environmental adversity. The book explores the national and global status of cotton crop, including cotton production, possible impacts of climate change, and the vulnerability of cotton to pest infestations and disease attacks. Features Focuses on cotton breeding and biotechnology Proposes ideas, data, and strategies to mount breeding programs for enhancing cotton production Details strategies for cotton quality improvement against abiotic and biotic stresses Emphasizes the revival of cotton in Pakistan and South Asian region This book is useful to researchers, cotton breeders and growers, farmers, and the agriculture industry.
Author: Sonia Y Del Rio
Author: Sonia Y Del Rio
Author: Ibrokhim Y. Abdurakhmonov
Author: John Jones
Author: Ibrokhim Y. Abdurakhmonov
Author: 
Author: David D. Fang
Author: C. Wayne Smith
Author: 
Author: 
Author: Zulqurnain Khan