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The book is a compilation of research work carried out on plant viruses during past 100 years in India. Plant viruses are important constraints in Indian agriculture. Tropical and sub-tropical environments and intensive crop cultivation practices ideally favours perpetuation of numerous plant viruses and their vectors in India, which often cause wide spread crop losses. Of all the plant pathogens, studies of plant viruses have received a special attention as they are difficult to manage. A large body of literature has been published on the plant virus research from India during past 100 years; however the information is so far not available in one place. This book provides comprehensive information on the biology, molecular biology, epidemics, crop losses, diagnosis and management of viruses and viroids occurring in India. Description of properties of the viruses are provided in the chapters comprising of ?different genera such as Allexivirus, Begomovirus, Babuvirus, Badnavirus, Carlavirus, Carmovirus, Cucumovirus, Closterovirus, Ilavirus, Mandrivirus, Potyvirus, Tospovirus, Tungrovirus and Sobemovirus. Virus-vector research related to aphid, thrips and whitefly is discussed. The work on the management aspects of plant viral diseases has been described with reference to the conventional, antiviral and transgenic approaches. Further, the quarantine mechanism developed in India for the exclusion of viruses and vectors has also been included. The book also provides useful information about the capacity building on the research and education on Plant Virology in India. Overall, the book covers a wide range of accounts of research findings and innovations in Plant Virology in India during past 100 years. The book will be a resourceful reference to the students, scientists, agricultural professionals and policy makers.

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Intro -- Foreword -- Preface -- Contents -- About the Editors -- 1: Introduction: A Century of Plant Virology in India -- 1.1 Introduction -- 1.2 The Developmental Phages -- 1.3 Design and Objectives of the Book -- References -- Part I: Virus Characterisation -- 2: Ampeloviruses Associated with Grapevine Leafroll Disease: A New Group of Viruses in India -- 2.1 Introduction -- 2.2 Subgroups of Ampelovirus -- 2.3 Symptoms and Transmission -- 2.4 Ampeloviruses in India -- 2.5 Disease and Virus Description -- 2.5.1 Grapevine Leafroll Disease (GLD) -- 2.5.2 Symptoms -- 2.5.3 Impacts of the Disease -- 2.5.4 Causal Agents: A Chronological Perspective -- 2.5.5 Genome Organization of GLRaVs -- 2.5.6 Transmission and Host-Range -- 2.5.7 Geographical Distribution -- 2.5.8 Virus Characterization, Recombination and Selection Pressure Analyses -- 2.5.9 Management -- 2.6 Concluding Remarks -- References -- 3: Biology and Molecular Biology of Babuviruses Occurring in India -- 3.1 Introduction -- 3.2 Banana Bunchy Top Virus -- 3.2.1 Occurrence and Significance -- 3.3 Biology of BBTV -- 3.3.1 Disease Symptom and Dissemination -- 3.4 Genomic Properties of BBTV in India -- 3.5 Sequence Diversity -- 3.6 BBTD in North-East (NE) India -- 3.7 Large Cardamom Bushy Dwarf Virus -- 3.7.1 The Foorkey Disease -- 3.7.2 Resolving the Etiology of Foorkey -- 3.7.3 Mode of Spread -- 3.7.3.1 Through Planting Materials -- 3.7.3.2 Through the Aphid Vector -- 3.7.4 Molecular Properties of CBDV -- 3.7.4.1 Cloning of the Genome Components -- 3.7.4.2 Major Genome Components -- 3.7.4.3 Satellite Component -- 3.7.4.4 The Other Unknown Components -- 3.7.4.5 Phylogenetic Relationships and Diversity in CBDV -- 3.8 Concluding Remarks -- References -- 4: Emergence and Diversity of Badnaviruses in India -- 4.1 Introduction -- 4.2 Disease and Virus Description -- 4.2.1 Banana Streak Disease -- 4.2.1.1 Geographical Distribution -- 4.2.1.2 Transmission and Spread -- 4.2.1.3 Virus Characterization -- 4.2.1.4 Subpopulation Variation, Genetic Diversity and Sequence Analysis -- 4.2.2 Sugarcane Freckling Disease -- 4.2.2.1 Geographical Distribution -- 4.2.2.2 Transmission and Spread -- 4.2.2.3 Virus Characterization -- 4.2.2.4 Recombination and Evolutionary Analysis -- 4.2.3 Citrus Yellow Mosaic Disease -- 4.2.3.1 Geographical Distribution -- 4.2.3.2 Transmission and Spread -- 4.2.3.3 Virus Characterization -- 4.2.4 Pepper Yellow Mottle Disease -- 4.2.4.1 Geographical Distribution -- 4.2.4.2 Transmission and Spread -- 4.2.4.3 Virus Characterization -- 4.3 Badnaviruses Infecting Bougainvillea -- 4.4 Concluding Remarks -- References -- 5: Begomoviruses and Their Satellites Occurring in India: Distribution, Diversity and Pathogenesis -- 5.1 Introduction -- 5.1.1 Begomovirus species in India -- 5.2 Historical Developement -- 5.2.1 Global Scenario -- 5.2.2 Indian Scenario -- 5.3 Begomoviruses Causing Mosaic Diseases -- 5.4 ICMV and SLCMV -- .