| melon chlorotic leaf curl virus: characterization and differential reassortment with closest relatives reveal adaptive virulence in the squash leaf curl virus clade and host shifting by the host-restricted bean calico mosaic virus. | the genome components of the melon chlorotic leaf curl virus (mclcuv) were cloned from symptomatic cantaloupe leaves collected in guatemala during 2002. the mclcuv dna-a and dna-b components shared their closest nucleotide identities among begomoviruses, at approximately 90 and 81%, respectively, with a papaya isolate of mclcuv from costa rica. the closest relatives at the species level were other members of the squash leaf curl virus (slcv) clade, which is endemic in the southwestern united sta ... | 2008 | 18057231 |
| emergence of a new cucurbit-infecting begomovirus species capable of forming viable reassortants with related viruses in the squash leaf curl virus cluster. | abstract cucurbit leaf curl virus (culcv), a whitefly-transmitted geminivirus previously partially characterized from the southwestern united states and northern mexico, was identified as a distinct bipartite begomovirus species. this virus has near sequence identity with the previously partially characterized cucurbit leaf crumple virus from california. experimental and natural host range studies indicated that culcv has a relatively broad host range within the family cucurbitaceae and also inf ... | 2002 | 18943269 |
| recovery from cucurbit leaf crumple virus (family geminiviridae, genus begomovirus) infection is an adaptive antiviral response associated with changes in viral small rnas. | a strong recovery response occurs in cantaloupe (cucumis melo) and watermelon (citrullus lanatus) infected with the bipartite begomovirus cucurbit leaf crumple virus (culcrv). this response is characterized by initially severe symptoms, which gradually become attenuated (almost symptomless). an inverse relationship was detected between viral dna levels and recovery, indicating that recovered tissues had reduced viral titers. recovered tissues also were resistant to reinfection with culcrv; i.e., ... | 2008 | 18943741 |
| distribution of four viruses in single and mixed infections within infected watermelon plants in florida. | whitefly-transmitted squash vein yellowing virus (sqvyv) and cucurbit leaf crumple virus (culcrv) and aphid-transmitted papaya ringspot virus type w (prsv-w) have had serious impact on watermelon production in southwest and west-central florida in the past 5 years. tissue-blot nucleic acid hybridization assays were developed for simple, high-throughput detection of these three viruses as well as cucurbit yellow stunting disorder virus (cysdv), which was first reported in florida in 2008. to dete ... | 2010 | 20649418 |
| ecology and management of whitefly-transmitted viruses of vegetable crops in florida. | a variety of fresh market vegetables, including watermelon and tomato are economically important crops in florida. whitefly-transmitted squash vein yellowing virus (sqvyv) was first identified in squash and watermelon in florida in 2005 and shown to cause a severe decline of watermelon vines as crops approach harvest. florida is most economically impacted by sqvyv, although the virus has been detected more recently in indiana and south carolina. the origin and evolutionary history of sqvyv, one ... | 2011 | 21549768 |