The retinal fascin 2 gene (FSCN2) underwent a molecular analysis, a search for polymorphisms and an evaluation as a candidate gene for retinopathies in dogs. Specific fragments of the gene encompassing partial exon 1 and intron 1, and exons 2-5 with respective introns were sequenced and these data were deposited in the GenBank database. Three distinct polymorphic sites detectable with PCR-RFLP were found - AM050719: g.237G > A, AM050719: g.525A > G, and AM050720: g. 1071A > G. No positive associations between these polymorphisms and the PRA-clinical status were observed in the investigated population consisting of Poodles, American Cocker Spaniels, and English Cocker Spaniels. In spite of that, the FSCN2 gene remains an excellent candidate gene for retinopathies in dogs and the results can contribute to further research in this field.
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