A team led by byeong-chun lee of seoul national university in south korea created the dogs by cloning fibroblast cells that express a red fluorescent gene produced by sea anemones .
Recently she developed a postmortem human-brain repository and a case-specific fibroblast and dna library to support translational disease research in schizophrenia .
Lee 's team used a retrovirus to transfer the fluorescent gene to dog fibroblast cells , but they could not control where the virus inserted the gene .