RT article T1 Genetic variability and evolutionary analyses of the coat protein gene of Tomato mosaic virus A1 Rangel, Ezequiel A. A1 Alfaro-Fernández, Ana A1 Font-San-Ambrosio, Isabel A1 Luis-Arteaga, Marisol A1 Rubio, Luis AB Tomato mosaic virus (ToMV), a member of the genus Tobamovirus, infects several ornamental and horticultural crops worldwide. In this study, the nucleotide sequences of the coat protein gene of worldwide ToMV isolates were analyzed to estimate the genetic structure and diversity of this virus and the involved evolutionary forces. The phylogenetic analysis showed three clades with high bootstrap support: Clade I contained three ToMV isolates from Brazil collected from pepper, Clade II comprised one Brazilian ToMV isolate from pepper, and Clade III was composed of ToMV isolates collected from different plant hosts (pepper, tomato, eggplant, lilac, camellia, dogwood, red spruce, etc.) and water (from melting ice, lakes and streams) from different countries: USA, Brazil, Korea, Germany, Spain, Denmark (Greenland), China, Taiwan, Malaysia, Iran, and Kazakhstan. With the exception of Brazil, nucleotide diversity within and between different geographic regions was very low, although statistical analyses suggested some gene flow between most of these regions. Our analyses also suggested a strong negative selection which could have contributed to the genetic stability of ToMV. SN 0920-8569 YR 2011 FD 2011 LK http://hdl.handle.net/20.500.11939/4403 UL http://hdl.handle.net/20.500.11939/4403 LA en NO Rangel, E.A., Alfaro-Fernandez, A., Font-San-Ambrosio, M. I., L.-Arteaga, M., Rubio, L. (2011). Genetic variability and evolutionary analyses of the coat protein gene of Tomato mosaic virus. Virus genes, 43(3), 435-438. DS MINDS@UW RD Aug 18, 2022