Figure 2.

Size distributions of male spermatids for each of 7 strains (diameter, μm). Box-plots indicate median and inter-quartile range (points beyond whiskers are candidate outlier values). Horizontal bars at the top indicate Tukey HSD groups, with strains sharing identical letters not differing significantly.

Murray et al. BMC Evolutionary Biology 2011 11:99   doi:10.1186/1471-2148-11-99
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