Table 1. Primers for generating minimal rhodopsin promoters and hybrid promoters.

The minimal rhodopsin promoters have been previously described [19]; the underlined sequences are BglII or NotI restriction sites that we used for cloning.

Rhodopsin	Forward primer	Reverse primer
Rh1	agatctataatccaagattagcagag	gcggccgcattctgaatatttcactggg
Rh3	agatctgcactaaccttcagatgagc	gcggccgcgtctgcgggccaagacgaaatca
Rh4	agatctgtttctttggacaatgttg	gcggccgctcggtcaacccgataccgaa
Rh5	agatctaacatgtaaagcttgtaaaa	gcggccgctagtttcctttgcaggtcgac
Rh6	agatctgggtgggtggtacctcaaac	gcggccgcggtggcgcttcggtggtggcttc