Fig. (1) Neighbor joining phylogenetic analysis of sqr sequences. Names in bold correspond to sequences generated in this study. Clone names beginning with QC refer to sequences obtained from cDNA. Clone names beginning with QD refer to sequences obtained from DNA Groups according to Pham et al. (2008) are indicated to the right of the sequences. ■, indicates bootstrap values >75%; ●, indicates values between 50 and 75%. The scale bar indicates 0.05 substitutions per site.