Comparison of DNA Sequences of Exon-4 or Exon-5 in Visual Pigment Genes between Amphidromous and Landlocked Ayu-fish, Plecoglossus Altivelis

Abstract

Nucleotide sequences of exon-4 or -5 encoding one region of visual pigments in Plecoglossus altivelis were determined with the amplified fragments. One nuclotide was substituted in the exon-4 of rhodopsin pigment gene between the amphidromous and landlocked form, and one colon (ATC) in exon-4 of amphidromous form was changed to GTC in that of landlocked form. There was no difference in the exon-5 of the sequence in the red-sensitive pigment gene between the two forms.