... of activation of the hypothalamic thyrotropin-mediated photoperiodic response pathway. This was assayed through expression of the Eya3 , Tshβ and deiodinase genes, as well as gonadal development. While transfer to SNP established synchronous diurnal activity patterns, activity in birds transferred from DD to LL...

..., Seattle, WA 98195-7923, USA ‡ Author for correspondence ( [email protected] ) 17 3 2011 © 2011. 2011 thyroid hormone retina degeneration opsin photoreceptor development deiodinase Thyroid hormones (THs) are considered crucial factors for neural development...

... is necessary to initiate retinal remodelling during development. Quantitative real-time RT-PCR analysis demonstrated that several TH-regulating components are expressed in the trout retina, and that expression levels of the TH receptor isoform TRβ and the type 2 deiodinase ( D2 ) change with T4 treatment...