Fig. 1From: The Tetrahymena metallothionein gene family: twenty-one new cDNAs, molecular characterization, phylogenetic study and comparative analysis of the gene expression under different abiotic stressorsPhylogenetic tree of all ciliate metallothioneins. Two well defined groups corresponding to both MT subfamilies are observed. Multiple alignments of amino acid sequences were obtained by using the T-Coffee program. Numbers indicate bootstrap values (<50 % are not shown) from 2000 replicates. Brach lengths are drawn to scale as indicated by the scale bar. The names of the new MT sequences reported in this paper are indicated into the red boxes. See Table 1 for ciliate species identificationBack to article page