Table 1. Sequences of primers used in this study.

Primers	Sequences	Purpose in this study
LacCu1	5′-CAY TGG CAY GGN TTY TTY CA-3′	Gene fragment
LacCu2	5′-G RCT GTG GTA CCA GAA NGT NCC-3′	Gene fragment
Lac3 GSP1	5′-GGACATTGATTGACACCAGTCGCGCCA-3′	5′-RACE of lac3
Lac4 GSP1	5′-CTCCGGAACCACCATCAGCCCAATTAG-3′	5′-RACEof lac4
Lac3 GSP2	5′-CTCACGACCTCCCGCTTGGGAATAACCAAC-3′	3′-RACEof lac3
Lac4 GSP2	5′-GGCGCCAATGCTTTTGCGCTTTCTGTCGG-3′	3′-RACEof lac4
Lac3F	5′-CGGAATTCTCAGTCCTCATACCGCACTCGAC-3′	pPICZαB-Lac3,
Lac3R	5′-GCTGGCGGCCGCAACTGGCATTGGTAAAGAAGAGACA-3′	pPICZαB-Lac3,
Lac4F	5′-CGGAATTCCTTTCTGTCGGTCCACGAGCAAC-3′	pPICZαB-Lac4
Lac4R	5′-GCTGGCGGCCGCATGTTTCACCATAGGCACAAT-3′	pPICZαB-Lac4
pPICZαB-10AAF	5′-GATCTAGAAGAGTTGGTGTTGAAAGGGGGGAATGGCGTCGGAATTCCTGCAGCTTCAGCCT-3′	pPICZαB-10AA
pPICZαB-10AAR	5′-TTCCGCGGGAACAAAAACTCATCT-3′	pPICZαB-10AA
Lac310AAF	5′-GCTCTAGATCAGTCCTCATACCGCACTCGAC-3′	pPICZαB-10AALac3
Lac310AAR	5′-GTCCCCGCGGAACTGGCATTGGTAAAGAAGAGACA-3′	pPICZαB-10AALac3
Lac410AAF	5′-GCTCTAGACTTTCTGTCGGTCCACGAGCAAC-3′	pPICZαB-10AALac4
Lac410AAR	5′-GTCCCCGCGGATGTTTCACCATAGGCACAAT-3′	pPICZαB-10AALac4
Lac3mycR	5′-GTCCCCGCGGTCAATGATGATGATGATGATGAACTGGCATTGGTAAAGAAGAGACA-3′	pPICZαB-10AALac3-ΔMyc
Lac4mycR	5′-GTCCCCGCGGTCAATGATGATGATGATGATGATGTTTCACCATAGGCACAAT-3′	pPICZαB-10AALac4-ΔMyc

In the degenerate primers the following abbreviations were used Y = C, T; N = A, G, C, T; M = C, A; R = A, G; V = G, A, C.