| genetic diversity, host range, and distribution of tomato yellow leaf curl virus in iran. | tomato yellow leaf curl virus (tylcv) is considered one of the most important tomato pathogens in tropical and subtropical regions including iran. during the years 2007 to 2009, a total number of 510 symptomatic and asymptomatic vegetable, ornamental and weed samples were collected from fields and greenhouses in ten provinces of iran. symptoms included stunting, yellowing, leaf curl and flower senescence. pcr with specific primers showed tylcv infection in 184 samples (36%) such as cucumber, pep ... | 2014 | 24957717 |