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Kobayashi, Y., Hisatomi, O., Yamamoto, S. & Tokunaga, F. (2002) Distribution of rod- and cone-specific phosducins in retinas of non-mammalian vertebrates. Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 133 77–83. 
Added by: Sarina (28 Apr 2022 10:57:51 UTC)   Last edited by: Sarina (26 Sep 2022 12:38:13 UTC)
Resource type: Journal Article
ID no. (ISBN etc.): 1096-4959
BibTeX citation key: Kobayashi2002
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Categories: Englisch = English
Keywords: Echsen = Lizards, Sehvermögen = Visual Perception
Creators: Hisatomi, Kobayashi, Tokunaga, Yamamoto
Collection: Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology
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In mammalian retinas, it has been believed that just one kind of phosducin (PD) commonly exists in both rods and cones. However, we have previously reported that there are rod- and cone-specific PDs (OlPD-R and OlPD-C) in medaka (Oryzias latipes) retina [FEBS Lett., 502, 117–121, 2001]. To clarify the distribution and evolution of these photoreceptor type-specific PDs, we investigated PDs of another teleost and a reptile. Immunohistochemical and Western blot analyses using anti-medaka PD antisera demonstrated that two kinds of PDs are expressed in zebrafish (Danio rerio) photoreceptor cells. Our study is suggestive that teleosts generally possess rod- and cone-specific PDs. We isolated a cDNA encoding putative PD (PmlPD) of a diurnal gecko (Phelsuma madagascariensis longinsulae). Because diurnal gecko possesses a pure-cone retina, it was expected that PmlPD would be expressed in cones. Molecular phylogenetic analysis demonstrated that PmlPD was more closely related to mammalian PDs than teleost cone-specific PDs, suggesting that the rod- and cone-specific subtype of teleost PDs have arisen after the teleost–tetrapod divergence.
Added by: Sarina  
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