The expression of cardiac mesodermal and Wnt signaling markers was analyzed by qRT-PCR in the control shRNA and GATA6-AS1 shRNA NKX2–5-eGFP hESC cultures at differentiation days 0, 2, 5, 8 and 14: (A) mesendodermal markers T and MIXL1; (B) mesodermal markers MESP1 and MESP2; (C) Wnt target genes AXIN2 and LEF1; (D) canonical Wnt-signaling genes WNT3A and WNT8A; and (E) non-canonical Wnt signaling genes WNT5A and WNT11. *, P<0.05; **, P<0.01; ***, P<0.001; ****, P<0.0001.