Table of Contents
International Journal of Evolutionary Biology
Volume 2011, Article ID 781642, 10 pages
Research Article

Parallel Evolution and Horizontal Gene Transfer of the pst Operon in Firmicutes from Oligotrophic Environments

1Departamento de Ecologia Evolutiva, Instituto de Ecologia, Universidad Nacional Autónoma de México, Apdo. Postal 70-275, Ciudad Universitaria, 04510 México D. F., Mexico
2Departamento de Ingeniería Genética, CINVESTAV Campus Guanajuato, Apdo. Postal 629, 36500 Irapuato, Mexico
3Departamento de Bioquimica, Facultad de Quimica, Universidad Nacional Autonoma de México, Apdo. Postal 70-275, Ciudad Universitaria, 04510 México D. F., Mexico

Received 22 October 2010; Accepted 22 December 2010

Academic Editor: Hiromi Nishida

Copyright © 2011 Alejandra Moreno-Letelier et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Supplementary Material

Supplementary Figure: Phylogenetic reconstruction of the PstS protein as described in Materials and Methods for the PstCAB proteins. Bootstrap values reported above branches. Clade I corresponds to subtilis-like PstS and Clade II to cereus-like PstS. Taxa with multiple copies of the proteins are denoted by letters after the strain name (_a, _b, _c, etc.).

Supplementary Table 1: List of taxa and accession numbers used in the analysis of the pst operon.

Supplementary Table 2: Codon-based test for Positive selection (Nei-Gojobori, 500 bootstrap replicates; H1: dN>dS). P-values below diagonal and dN-dS statistic above diagonal.

Supplementary Table 3: Codon-based test for Negative selection (Nei-Gojobori, 500 bootstrap replicates; H1: dN.

  1. Supplementary Figure
  2. Supplementary Tables