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Figure 1 | BMC Developmental Biology

Figure 1

From: Regular heartbeat rhythm at the heartbeat initiation stage is essential for normal cardiogenesis at low temperature

Figure 1

Normal development and heartbeat analysis at st.34 in medaka embryos raised at 15°C. A: Days and developmental stage for embryos incubated at 15°C and 26°C. Solid circles, embryos raised at 26°C; solid triangles, embryos raised at 15°C. B and C: Time course of the strength of the contraction of the heartbeat measured at 26°C in st.34 embryos (plotted for 5 s). B: control. C: regurgitation.

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