Figure 1

Genome size variation in Brachionus plicatilis species complex. Maximum Parsimony tree, based on combined analysis of partial mitochondrial COI and ribosomal ITS1 sequences, with Brachionus calyciflorus as outgroup is shown on the left. Bootstrap values for 1000 replicates for MP (1^st value) and NJ (2^nd value) are given above the branches. Asterisks indicate 100% support. Dashes indicate <50% support. Numbers of evolutionary steps are displayed as branch length. Boxes indicate the cryptic species identified by Suatoni et al (2006) and Gomez et al. (2002), as well as the three major clades (A, B, and C). Bars represent the mean haploid genome sizes of the different clones (± s.e.m.)