Japanese
 NBRP Rat No: 0669 Strain NameF344.Cg-Du TyrC/Kyo Commmon Name: downunder rat
 Principal Investigator  Takashi Kuramoto
 Organization   Graduate School of Medicine, Kyoto University Institute of Laboratory Animals
 Address  Yoshidakonoe-cho, Sakyo-ku

606-8501 Kyoto

 Japan
 Telephone  075-753-4494  Fax:  075-753-4409  kuramot@anim.med.kyoto-u.ac.jp
 Inbred Generations   N8F2 
   
 Coat Color
 Deposition Status
 
 downunder
  Embryo      Sperm      Live Animals
 Usage Restrictions  The recipient of BIOLOGICAL RESOURCE shall obtain a prior written consent on use of it from the DEPOSITOR.
For a commercial use of this resource, a new contract must be concluded between the depositor and the recipient. 
 Genetic Status   Inbred   Segregating   Congenic   Consomic    Recombinant 
  Coisogenic   Spont. Mutant    Transgene   Ind. Mutant    Others 
 Comercial Availability   
 Research Category   Diabetes Obesity    Neurobiology    Ophthalmology    Dentistry    Cardio- Hypertension 
  Oncology   Metabolism   Otorhinology    Immunology    Infectious Disease
  Osteology    Internal Medicine   Dermatology   Reproduction    Development
  Behavior    Hematology    Urology   Pharmacology   Others 
  Control Strains   Reporter gene Strains  
 Gene
 Origin This strain with Downunder (Du) mutation is originated from a male fancy rat (Coming Home. This rat was introduced from U.S.A. on July 13th, 2005.). F1 generation was obtained by crossing with TM/Kyo female. A F3 male rat (#313) was crossed with WTC/Kyo and we obtained F3+1 (18/10/2006). The sperms were collected from a F3+4 rat.  
 Strain Characteristics Heterozygous rats (downunder rat) have patchy pattern on their back and the same pattern is also obserbe on their abdominal skin hair. This rare hair color pattern is observed when they have a hooded mutation. This phenotype is dominant inheritance and homozygous rats are embryonic lethal.
 
 Breeding Conditions maintained by crossing between Du/+ (downunder) and +/+ (hooded). Tyrosinase allele: C/C 
 Genotyping The causative gene is unknown. 
 References  Genetic analyses of fancy rat-derived mutations.
Kuramoto T, Yokoe M, Yagasaki K, Kawaguchi T, Kumafuji K, Serikawa T.
Exp Anim. 2010;59(2):147-55.