GENETIC STRAINS AND STOCKS 95 



Table 27 — Continued 



Name or 

 Symbol 



Synonym(s) 



Remarks 



DM 



D103 

 E 



FAKI 



FU 



GFF 



GM 



IF 



IPBR 



IpBr 



JB 



inbr (Ms) : 27. genet: cc. origin: Germany; to Institute of Kitasato 

 Med. Res., Tokyo; to Tokyo Univ., to Hokkaido Univ., 1945; to 

 Misima, 1951. maintained by: Ms. 



inbr (Ms): 27. genet: cc. origin: from strain DM. charac: high 

 transplantability to MY mouse sarcoma, maintained by: Ms. 



inbr (Gw) : 58. genet: cc. origin: Gowen, from dealer stock in 

 Pennsylvania, charac: medium resistance to Salmonella typhimurium. 

 Highly nervous, maintained by: Gw. 



inbr (St): 83. genet: aabbc ch c ch ddss (white face). H-1 n . origin: 

 Strong, 1926, from a group of unpedigreed Bussey Inst. mice, charac: 

 high leukemia in older animals, maintained by: St. 



inbr: 35 (Nov. '57). genet: albino, origin: Furth, 1946. charac: 

 80% spontaneous leukemia in both sexes. Av. litter size, 4; range, 

 2-6. (The origin and characteristics of this strain suggest that it is a 

 subline of AKR. If this is the case, the designation FAKI does not 

 conform to standard usage.) maintained by: Pollards Wood. 



inbr (Rl): 20. genet: ccFuFu. origin: Russell, from BC2 and F2 

 of Fu on CFW provided by Waelsch in 1947 or 1948. After one or a 

 few backcrosses to CFW, stock mated b x s. maintained by: Rl. 

 inbr (G) : 40 (Nov. '57). genet: aabbpp. origin: from Agric. Res. 

 Council Field Station, Compton, in March, 1942. charac: can carry 

 Salmonella without showing signs of it. Av. litter size, 8.5; age at 

 sexual maturity, less than 10 wks; age at mating, 10 wks. main- 

 tained by: G. 



inbr (Rr) : 30. genet: a i a t bb + c + In. origin: derived from cross 

 of Large Goodale and Large MacArthur. charac: large body size, 

 become obese, maintained by: Rr. 



inbr (St): 43. origin: Strong, from BRpb and selected for maximal 

 white dorsal spot, charac: low tumor, maintained by: St. 

 inbr (Rl): 25. genet: Cp\c ch phrhr. origin: Crew, to Carnochan, to 

 Heston, 1947; to Russell, 1948. maintained by: Rl. 

 inbr (De) : 35. genet: hrhr. origin: inbred from hr stock received 

 from Carnochan in 1947. charac: develops skin papillomas and 

 hemangioendotheliomas. (Strains HR and HR/De seem to have been 

 separated before there was much inbreeding. They may therefore 

 show strain rather than substrain differences.) maintained by: De. 

 inbr (St): 68. genet: aabbddppss. H-2K origin: Strong, 1926, 

 from a group of unpedigreed mice, charac: resistant to tumors 

 chemically induced, maintained by: Ao, Fn, Sp, St. 

 inbr (Br): 67. genet: a 1 a 1 , origin: Bonser, selection of mice which 

 developed papillomas early after treatment with carcinogens, charac : 

 mammary tissue very sensitive to carcinogenic agents, either local or 

 distant. Very low incidence of spontaneous mammary cancer, main- 

 tained by: Ber, Br, Rd. 



inbr (St): 25. genet: bbddss. origin: Strong, PBR x I, progeny 

 inbred, charac: relatively resistant to chemically induced tumors. 

 maintained by: St. 



inbr (Di) : 31. genet: aabbc e c e . origin: Dickie, from cross of 

 DBA/2 Wy $ x CE/Wy o\ b x s thereafter; color was only selective 

 factor, charac: low incidence of mammary tumors, maintained 

 by: Di. 



