Table S1.

Primers used in the RT-PCR studies

Name	Sense	Antisense
Nkx2.5	5′ ACCATGCGGGAAGGCTAT 3′	5′CTCCAGGTTCAGGATGTCTTTG 3 ′
GATA-4	5′ CTGTCATCTCACTATGGGCA 3′	5′ TTAAGGACGAGCCTGAACC 3′
Tbx5	5′ TGACTGGCCTTAATCCCAAA 3′	5′ ACAAGTTGTCGCATCCAGTG 3′
α-MHC	5′ CAAGACTGTCCGGAATGACA 3′	5′ GGCTTCTTGTTGGACAGGAT 3′
β-MHC	5′ ATGTGCCGGACCTTGGAAG 3′	5′ CCTCGGGTTAGCTGAGAGATCA 3′
cTnT	5′ CTCGGAGTATCAGGAAGAGCACA 3′	5′ GATACTGGACGCACCGTTCAAA 3′
GAPDH	5′ GCAAGTTCAACGGCACAG 3′	5′ GCCAGTAGACTCCACGACAT 3′

Abbreviation: RT-PCR, real-time reverse transcription-polymerase chain reaction.