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. 2005 Jan 19;22(4):1024–1031. doi: 10.1093/molbev/msi089

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Molecular Biology and Evolution vol. 22 no. 4 © Society for Molecular Biology and Evolution 2005; all rights reserved.

This article is made available via the PMC Open Access Subset for unrestricted re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

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FIG. 3.— — Divergence time of PRRSV. (a) Phylogenetic tree positioning the divergence node between PRRSV-A and PRRSV-E. The black solid circle indicates the divergence node. (b) Phylogenetic tree showing branches with >50% bootstrap support.