Watermelon mosaic virus (WMV) also known as
Marrow mosaic virus (Raychaudhuri and Varma, 1975; Varma, 1988),
Melon mosaic virus (Iwaki et al., 1984; Komuro, 1962), and until recently
Watermelon mosaic virus type 2 (WMV-2), is a plant pathogenic virus that causes viral infection (sometimes referred to as watermelon Mosaic disease) in many different plants. First described on squash in Florida, WMV arose from a unique recombination of genetic material contributed
(Wikipedia)