No daughter colonies of the 4a were tested yet.
7 tested queens were mated at the mating station:
CH-51-51-2905-1989 CH-51-51-2906-1989 CH-51-51-2907-1989 CH-51-55-2903-1989 CH-51-55-2904-1989 CH-51-57-2901-1989 CH-51-57-2902-1989
40 daughter colonies of queens mated at the mating station were tested:
CH-51-52-3145-1990 CH-51-52-3390-1990 CH-51-52-3544-1990 CH-51-55-3259-1990 CH-51-55-3260-1990 CH-51-55-3261-1990 CH-51-55-3262-1990 CH-51-55-3263-1990 CH-51-55-3264-1990 CH-51-55-3265-1990 CH-51-57-3205-1990 CH-51-57-3206-1990 CH-51-57-3207-1990 CH-51-57-3208-1990 CH-51-57-3209-1990 CH-51-57-3213-1990 CH-51-57-3214-1990 CH-51-57-3521-1990 CH-51-57-3667-1991 CH-51-57-3668-1991 CH-51-57-3669-1991 CH-51-57-3670-1991 CH-51-57-3671-1991 CH-51-57-3672-1991 CH-51-57-3673-1991 CH-51-57-3674-1991 CH-51-57-3675-1991 CH-51-57-3676-1991 CH-51-57-3677-1991 CH-51-57-3678-1991 CH-51-57-3679-1991 CH-51-57-3682-1991 CH-51-57-3683-1991 CH-51-57-3684-1991 CH-51-57-4296-1991 CH-51-57-4297-1992 CH-51-57-4857-1992 CH-51-241-3480-1990 CH-51-241-3481-1990 CH-51-241-3482-1990