title: RCAS-RNAi: a loss-of-function method for the developing chick retina.
abstract: BACKGROUND
  The embryonic chick provides an excellent model system for studies of development. However, it has lacked an efficient loss-of-function method for studies of gene function.
  
  
  RESULTS
  We show that avian retroviruses can deliver hairpins mediating RNA interference to the developing chick eye. These viruses 'knock down' specific genes in infected areas of the retina. The knock down persists as the retina matures and can be detected using in situ hybridization. Furthermore, the amount of retinal tissue affected can be controlled by manipulating the degree of infection.
  
  
  CONCLUSIONS
  This technique provides a rapid and efficient loss-of-function option for studies in the developing chick retina.
authors.affiliation: Department of Genetics, Howard Hughes Medical Institute, Harvard Medical School, Boston, USA. sanjiv_harpavat@student.hms.harvard.edu
authors.forename: Sanjiv
authors.initials: S
authors.lastname: Harpavat
authors.forename: Constance L
authors.initials: CL
authors.lastname: Cepko
mesh_terms: D000818:Animals; D001483:Base Sequence; D002642:Chick Embryo; D002645:Chickens / Q000235:genetics* / Q000821:virology; D018507:Gene Expression Regulation, Developmental; D007453:Iodide Peroxidase / Q000235:genetics / Q000378:metabolism; D051379:Mice; D008969:Molecular Sequence Data; D009419:Nerve Tissue Proteins / Q000235:genetics / Q000378:metabolism; D009928:Organ Specificity; D034622:RNA Interference; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D012160:Retina / Q000196:embryology* / Q000378:metabolism*; D012190:Retroviridae / Q000235:genetics*; D000097564:Iodothyronine Deiodinase Type II
chemical_list: D007453:Iodide Peroxidase; D009419:Nerve Tissue Proteins; D012333:RNA, Messenger; D000097564:Iodothyronine Deiodinase Type II; C045140:visinin