Table 1. The difference between PgiC2 and other sequences over the upstream regions described in Fig. 1.

		Region
Gene	Exon I	I	II	III
F. ovina PgiC1	2/0	47/36	-	-
P. palustris PgiC	1/0	12/3	7/4	-
F. ovina PgiC2 bc	0/0	0/0	0/0	1/0

“-” implies no significant homology. The first figure gives the number of differences involving single base pair substitutions or indels; the second gives the number of base pair differences or indels that involve more than one consecutive nucleotide.