Cre-mediated recombination of Taar1tm1Tboz and Taar9tm2(Olfr545)Tboz deleted a 250 kb genetic interval containing Taar2, Taar3, Taar4, Taar5, Taar6, Taar7a, Taar7b, Taar7d, Taar7e, Taar7f, Taar8a, Taar8b, Taar8c and Taar9. No over-expression of Olfr545 is detected. (J:202086)