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. 2019 Nov 12;10:1439. doi: 10.3389/fpls.2019.01439

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Copyright © 2019 Nigam, LaTourrette, Souza and Garcia-Ruiz

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Schematic representation of the coat protein structural model. For potyviruses with the most amino acid variation, models were generated and superimposed using Phyre2 and Chimera v1.13, respectively. Wheat streak mosaic (WSMV; NC_001886) was used as a control. The coat protein folds into a central core, an N terminal and a C terminal variable loops. TM score and RMSD for each of the analyzed pairs were 0.49 ± 0.60 and 2.0 ± 2.4, respectively. Positive selection sites and the DAG motif are indicated. (A) Model for the Ohio isolate (AFQ35988.1) of SCMV compared to WSMV. (B) Representative SCMV isolates from China (AGE32037.1) and Mexico (ADG23201.1). (C) Bean yellow mosaic virus (NP_612218.1) and watermelon mosaic virus (ABD59007.1). (D) TuMV (NP_062866.2) and PPV (AFJ74692.1).