GENETIC STRAINS AND STOCKS .93 



Table 27 — Continued 



Name or 

 Symbol Synonym(s) 



Remarks 



SEA Ab, Sese-Ab 



SEAC 



SEAC/c 



SEC 



C, Sese-C 



inbr (Gw) : 65. genet: cc. origin: Schott, obtained from dealer 

 (Schwing) in 1927. Subsequently selected for resistance to Salmonella 

 typhimurium and inbred by Gowen. charac: resistant to S. typhi- 

 murium and to radiation, maintained by: Gw. 



inbr (Gn) : 61. genet: bbd + /dse. origin: Green, from a cross of 

 BALB/c x P. maintained by: Gn, Rl. 



inbr (Gn): 26. genet: aabbc ch c ch d + j +se. origin: Green, from a 

 cross of SEA x SEC/2, maintained by: Gn. 



inbr (Gn): N12 of se (Carter) to SEAC. genet: aabbc ch c ch d +/ +se. 

 origin: Green, by backcross of Carter's se from CBA/5e into SEAC. 

 maintained by: Gn. 



inbr (Rl): ? + 27. genet: aabbc ch c ch + +jdse. origin: E. and M. 

 Green, from cross of NB x BALB/c. Gave rise by crossover at F 18 

 to SEC/1 — +se and SEC/2 — +d. maintained by: Rl. 



inbr (Gn) : 56. genet: aabbc ch c ch + se. origin: Green, charac: 

 multiple pulmonary cysts, especially in sese. maintained by: Gn. 



inbr (Re): 60. genet: aabbc ch c ch SeSe. origin: E. S. Russell, from 

 SEC/1, maintained by: Re. 



inbr (Gn): 55. genet: aabbc ch c ch + sejdse. origin: Green, main- 

 tained by: Gn. 



inbr (Cu): 20. genet: albino, origin: outcross of BUD/Wi to 

 CFW at Merck Institute; inbred with continuous selection for circus 

 movement and vigor for 13 generations at Merck, 7 more at Seton 

 Hall College of Medicine, charac: 30% penetrance of circus move- 

 ment, good fertility and maternal care, maintained by: Cu. 



inbr (Cu): 20. genet: albino, origin: separated from SHC/a at 

 its F 13 . charac: same as SHC/a. maintained by: Cu. 



inbr (Ms): 40. genet: cc. origin: K. Tutikawa, Nat. Inst, of 

 Genetics, Misima; derived from one of several lines of SMA (q.v.) 

 at F 10 , selected for high leukemia; to H. Baba, Kyushu University, 

 1954, at F 16 . charac: low mammary carcinoma; leukemia 54.5% 

 in o*6\ 10% in $$; lymphatic leukemia, myeloid leukemia, reticulo- 

 sarcoma, lymphatic leukemia with a conspicuous myeloid reaction 

 were found in this strain, maintained by: Ms, Kyushu Univ., Kyoto 

 Univ. 



inbr (Jax) : 30. genet: A w a. origin: MacArthur to Runner in 

 1948. charac: small body size, renal amyloidosis, leukopenia. 

 maintained by: Jax, Rr. 



inbr (Ms): 39 (26 at Ms), genet: cc. origin: S. Makino to Hok- 

 kaido Univ., 1944; to Misima, 1951, at F 15 . charac: good breeder, 

 low incidence of mammary and pulmonary tumor in old age, 15-20% 

 kinked tail variants in each generation, maintained by: Ms. 



inbr (Jax): 56, genet: aabbcc. H-2 k . origin: Engelbreth-Holm, 



to Heston at F 23 , to Jax at F 25 . charac: 1-2% leukemia including 



some plasma-cell leukemias. Other tumors, principally pulmonary 



adenomas and mammary carcinomas, about 3%. maintained by: 



Jax. 



inbr (N): 52. genet: aabb. origin: Strong, to NIH in 1951 at F 28 . 



maintained by: N. 



SEC/1 Sese-Cl. 



SEC/ 1-5* 



SEC/2 Sese-C2 



SHC/a 



SHC/b 



SL S/L 



SM 



SMA 



ST 



STR 



S, SM 



Street 



