Microbe and Virus Interactions with Plants, a section of the journal Frontiers in Microbiology High-Throughput Sequencing for Deciphering the Virome of Alfalfa (Medicago sativa L.)
2020
Bejerman, Nicolas | Roumagnac, Philippe | Nemchinov, Lev, G | Instituto Nacional de Tecnología Agropecuaria (INTA) | Biologie et Génétique des Interactions Plante-Parasite (UMR BGPI) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro ; Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) | Département Systèmes Biologiques (Cirad-BIOS) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad) | USDA Agricultural Research Service [Beltsville, Maryland] ; USDA-ARS : Agricultural Research Service | United States Department of Agriculture (USDA) : 8042-21000-300-00-D ; Agropolis Fondation (Labex Agro -Montpellier, E-SPACE project) : 1504-004 | ANR-10-LABX-0001,AGRO,Agricultural Sciences for sustainable Development(2010)
International audience
Afficher plus [+] Moins [-]anglais. Alfalfa (Medicago sativaL.), also known as lucerne, is a major forage crop worldwide. In the United States, it has recently become the third most valuable field crop, with an estimated value of over $9.3 billion. Alfalfa is naturally infected by many different pathogens, including viruses, obligate parasites that reproduce only inside living host cells. Traditionally, viral infections of alfalfa have been considered by breeders, growers, producers and researchers to be diseases of limited importance, although they are widespread in all major cultivation areas. However, over the past few years, due to the rapid development of high-throughput sequencing (HTS), viral metagenomics, bioinformatics tools for interpreting massive amounts of HTS data and the increasing accessibility of public data repositories for transcriptomic discoveries, several emerging viruses of alfalfa with the potential to cause serious yield losses have been described. They include alfalfa leaf curl virus (familyGeminiviridae), alfalfa dwarf virus (familyRhabdoviridae), alfalfa enamovirus 1 (familyLuteoviridae), alfalfa virus S (familyAlphaflexiviridae) and others. These discoveries have called into question the assumed low economic impact of viral diseases in alfalfa and further suggested their possible contribution to the severity of complex infections involving multiple pathogens. In this review, we will focus on viruses of alfalfa recently described in different laboratories on the basis of the above research methodologies.
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