Figure 9

Phylogenetic trees of genes in subfamily IX of Arabidopsis and subfamily I of rice. A, Phylogenetic tree of Arabidopsis CCCH genes in subfamily IX. The unrooted tree was inferred by MEGA 3.1 and the neighbor-joining method after the alignment of the full-length amino acid sequences of the 11 Arabidopsis genes in subfamily IX. The numbers beside the branches represent bootstrap values based on 1000 replications. Subgroups of CCCH proteins are highlighted by vertical bars next to the gene identifiers. The scale bar corresponds to 0.1 estimated amino acid substitutions per site. B, Joined phylogenetic tree of rice subfamily I and Arabidopsis subfamily IX CCCH genes. The unrooted tree was constructed using MEGA 3.1 and the neighbor-joining method after the alignment of the full-length amino acid sequences of 20 Arabidopsis and rice genes. Numbers on branches indicate the percentage of 1000 bootstrap replicates that support the adjacent node. Black braces and numerals at right indicate the three subgroups. The scale bar corresponds to 0.05 estimated amino acid substitutions per site.