title: Is positive selection responsible for the evolution of a duplicate UV-sensitive opsin gene in Heliconius butterflies?
authors.forename: Masafumi
authors.initials: M
authors.lastname: Nozawa
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Suzuki
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Nei
mesh_terms: D000818:Animals; D002080:Butterflies / Q000235:genetics* / Q000502:physiology / Q000528:radiation effects*; D019143:Evolution, Molecular; D020440:Gene Duplication / Q000528:radiation effects*; D019476:Insect Proteins / Q000235:genetics*; D055355:Opsins / Q000235:genetics*; D010858:Pigmentation / Q000528:radiation effects; D014466:Ultraviolet Rays
chemical_list: D019476:Insect Proteins; D055355:Opsins
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