Table 1.

The primers used in this study.

Primer	Sequence (5′-3′)
DP-F	5′-GG(A/G)GAATCCTT(A/G)ATGAA(C/T)GATGGGAC-3′
DP-R	5′-C(T/C)A(G/A/T)AGC(G/A)CTTTCCTGCCA(C/T)AG-3′
5′-GSP	5′-GCTATCCCAAAAGCAATTCCAACCGC-3′
5′-NGSP	5′-CCAAGTGAGACTTTGGCCAGAAATT-3′
3′-GSP	5′-GTGCATCCAACTTTTAGTCATGGGAG-3′
3′-NGSP	5′-GTGACAGAATACTTTCAGTACTAAGGTC-3′