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. 2012 Dec 17;7(12):e51482. doi: 10.1371/journal.pone.0051482

Figure 4. Relative expression of myostatin (MSTN) mRNA in the manakin testosterone (T) treatment study, zebra finch flutamide treatment study, and species comparison study.

Figure 4

(A) Manakin T treatment study; white-bars represent male manakins treated with T-filled implants, and black bars represent male manakins treated with blank implants (Control). (B) Zebra finch flutamide study; white bars represent male zebra finches treated with T-filled implants and blank implants (T+Blank), and black bars represent male zebra finches treated with T-filled implants and flutamide-filled implants (T+Flutamide). (C) Species comparison of reproductively active male birds. White bars represent golden-collared manakins, grey bars represent ochre-bellied flycatchers, and black bars represent zebra finches. Wing muscles are displayed on the horizontal axis in all graphs (supracoracoideus = SC; scapulohumeralis caudalis = SH; and pectoralis = PEC). Non-significant differences between hormone-manipulated groups (A & B) and among species (C) are depicted by the abbreviation N.S. within each graph’s legend. Asterisks (*) displayed above the bars indicate significant differences between groups that we found following the detection of a significant interaction term. Data represent means ±1 SEM.