Submitted to: American Veterinary Medical Association Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 1/15/2005
Publication Date: 7/16/2005
Citation: Pantin Jackwood, M.J., Spackman, E. 2005. Molecular characterization of turkey astroviruses circulating in the united states [abstract]. American Veterinary Medical Association p.73.
Technical Abstract: This study investigated the genetic diversity of turkey astroviruses (TAstV's) collected from turkey flocks during the years 2003 and 2004. A comparative analysis was performed with isolates of TAstV's detected in intestinal contents from flocks with enteritis or healthy flocks from different regions of the United States. The samples were screened for TAstV's using real time RT-PCR for the highly conserved polymerase gene. Genetic analysis of TAstV positive samples was performed by partial sequence analysis of both the polymerase and capsid genes. Great variability in the capsid gene was present in the samples studied, and distinct clades were observed by phylogenetic analysis. The polymerase gene was more conserved.