Genetics of Yield Attributes and Resistance to Tomato Leaf Curl Virus (tolCV) and Bacterial Wilt in Tomato (Solanum Lycopersicum L.) PDF Download
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Author: R.P. Jaiprakashnarayan
Publisher:
ISBN:
Category :
Languages : en
Pages : 179
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Book Description
Author: R.P. Jaiprakashnarayan
Publisher:
ISBN:
Category :
Languages : en
Pages : 179
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Book Description
Author: INDRAJYOTHI BHATTACHARJEE
Publisher:
ISBN:
Category :
Languages : en
Pages : 87
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Author: CHANDRASHEKAR A. C
Publisher:
ISBN:
Category :
Languages : en
Pages : 105
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Author: PRASANNA H. C
Publisher:
ISBN:
Category :
Languages : en
Pages : 112
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Author: G Umesha
Publisher:
ISBN:
Category :
Languages : en
Pages : 147
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Author:
Publisher:
ISBN: 9789463439398
Category :
Languages : en
Pages : 275
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Book Description
Tomato yellow leaf curl disease (TYLCD) caused by Tomato yellow leaf curl virus (TYLCV) and a group of related species is a worldwide constraint of tomato (Solanum lycopersicum L.) production. Many countries have established quarantine measures to control this disease. Despite quarantine restrictions, TYLCD epidemic is still spreading due to the influence of climate change on insect vector population, rapid evolution of virus variants and global exchange of plant materials. Breeding for host plant resistance is considered as one of the most promising and sustainable methods in TYLCD control. Resistance to TYLCD was found in several wild relatives of tomato from which six TYLCV resistance genes (Ty-1 to Ty-6) have been identified. Breeding for TYLCV resistance has been focused on the introgression of the Ty-1 gene derived from S. chilense and the Ty-2 gene derived from S. habrochaites. Here it is shown that Ty-1 confers generic resistance against geminiviruses via enhancement of the transcriptional gene silencing (TGS) response. On the other hand, acquisition of beta-satellites by TYLCV can suppress the Ty-1-mediated TGS during co-infection. Ty-2 was not cloned yet at the start of this thesis research, thus we aimed to clone the Ty-2 gene. We fine-mapped Ty-2 to a small region of 32 kb using ‘intraspecific’ crosses between a Ty-2 introgression line and susceptible S. habrochaites accessions. In this region four genes were predicted, one of which was a full-length nucleotide binding leucine-rich repeat (NB-LRR) type gene. This gene proved to be the Ty-2 gene which confers species-specific resistance. A highly specific DNA marker tightly linked to the Ty-2 gene was developed permitting marker-assisted selection in tomato breeding.
Author: PATIL VENKATARAM REDDY J
Publisher:
ISBN:
Category :
Languages : en
Pages : 90
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Author: Jameel M. Al-Khayri
Publisher: Springer Nature
ISBN: 3030669610
Category : Technology & Engineering
Languages : en
Pages : 480
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Book Description
This book examines the development of innovative modern methodologies towards augmenting conventional plant breeding, in individual crops, for the production of new crop varieties under the increasingly limiting environmental and cultivation factors to achieve sustainable agricultural production, enhanced food security, in addition to providing raw materials for innovative industrial products and pharmaceuticals. This Volume 9, subtitled Vegetable Crops: Fruits and Young Shoots, consists of 12 chapters focusing on advances in breeding strategies using both traditional and modern approaches for the improvement of individual vegetable crops. Chapters are arranged in 2 parts according to the edible vegetable parts. Part I: Fruits - Bell Pepper (Capsicum annuum L. var. grossum Sendt.), Chili pepper (Capsicum frutescens L.), Bitter gourd (Momordica charantia L.), Bottle gourd (Lagenaria siceraria (Molina) Standl.), Eggplant (Solanum spp.), Okra (Abelmoschus esculentus L.), Plantain (Musa paradisiaca L.), Sweet gourd (Cucurbita moschata Duch. ex Poir.), Melon (Cucumis melo L. Groups Dudaim and Flexuosus), Tomato (Solanum lycopersicum L.) and Zucchini (Cucurbita pepo L.) and Part II: Young shoots - Asparagus (Asparagus officinalis L.). The chapters were contributed by 43 internationally reputable scientists from 11 countries. Each chapter comprehensively reviews the modern literature on the subject and reflects the authors own experience.
Author: Sangeeta Saxena
Publisher: Springer
ISBN: 9811059845
Category : Science
Languages : en
Pages : 332
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Book Description
Begomoviruses are one of the most interesting plant viruses to study for basic and applied research as they cause huge economic losses to agriculture industries and farmers all over the world. They belong to family Geminiviridae and are emergent plant viral pathogens which cause diseases in various crops in the tropical and subtropical regions. They are transmitted by the whitefly (B. tabaci) and have either one (monopartite DNA-A) or two (bipartite DNA-A and DNA-B) genomic components. DNA-A and DNA-B are of ~2600 - 2800 nucleotides each. A number of serious diseases of cultivated crops of the Fabaceae, Malvaceae, Solanaceae and Cucurbitaceae families are caused by Begomoviruses which are considered as threat to their cultivation in many countries. Accurate diagnosis is important for successful diseases management, since plants infected by Begomovirus do not recover, suffer serious yield losses and act as further sources of inoculum, which is then picked up and spread by their vector whitefly (B. tabaci). Reports of occurrence of new viruses and re-emergence of several known viruses in new niches have become regular event. In such a dynamic system, growth of several crop species relies on an accurate diagnosis, management and better understanding of the biology of the casual virus. This is crucial to evolve appropriate control practices and to prevent the virus infection. Researchers have achieved considerable progress in characterization, detection and management of virus on different crop species in the last decade. This book covers latest information in diagnosis of begomoviruses in the present scenario and explores the new vistas in the field of genomics and proteomics. Chapters in Section 1 illustrates the occurrence, genome organisation, transmission and diagnostics of begomoviruses. It also details the diseases caused by begomoviruses on different crops, detection techniques and management strategies in support of research findings by presentation of data, graphics, figures and tables. Section 2 is a chapterwise collection of occurrence, diversity and status of begomoviruses in Asian Africa counties where the diseases are most prevalent. This book will provide wide opportunity to the readers to have complete information and status of begomovirus in Asia and Africa. This will be useful resource for researchers and extension workers involved in the begomvirus disease diagnosis and molecular biology. Expert detection, accurate diagnosis and timely management play a significant role in keeping plants free from pathogens. In this book expert researchers share their research knowledge and literature which are vital towards the diagnosis of begomoviruses, addressing traditional plant pathology techniques as well as advanced molecular diagnostic approach. The book deals with the economically important crops including fruits, vegetables along with challenges in crop protection against diseases caused by begomovirus. This will be resourceful and handy for researcher, practitioners and also students.
Author: Henryk Czosnek
Publisher: Springer Science & Business Media
ISBN: 140204769X
Category : Science
Languages : en
Pages : 437
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Book Description
Ideally suited to horticulturalists and plant virologists, this highly useful text offers a multidisciplinary view on one of the major diseases of tomato crops, the tomato yellow leaf curl disease. It deals with epidemiological aspects of the disease as well as integrated pest management in the field. Coverage discusses the efforts aimed at breeding tomato plants resistant to the virus by classical breeding, by marker-assisted breeding and by genetic engineering.
