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Fig. 2. Real-time quantitative PCR analysis of myosin heavy chain (MHC)-related
genes in space flown worms. Expression levels of MHCs (myo-1, -2, -3
and unc-54), paramyosin (unc-15), transcription factors
(hlh-1, pha-4, peb-1, ceh-22) and actin (act-3) are shown.
The mRNA levels of each gene were adjusted to that of GAPDH (gpd-2)
mRNA, which was used as the internal standard. All MHC-related genes decreased
in the space-flown worms. Actin levels remained unchanged in response to
spaceflight. A summary of the PCR and DNA microarray values is shown in
Table 2. Values in the column
of real-time PCR are means ± s.e.m. (P<0.05). F,
space-flown worms; G, ground controls.