15 daughter colonies of the 4a were tested:
DE-7-45-128-2006 DE-7-45-139-2006 DE-7-45-256-2006 DE-7-45-257-2006 DE-7-45-260-2006 DE-7-45-262-2006 DE-7-45-265-2006 DE-7-45-266-2006 DE-7-45-360-2006 DE-7-45-377-2006 DE-7-45-380-2006 DE-9-6-20-2006 DE-9-6-28-2006 DE-9-6-29-2006 DE-9-6-30-2006
26 tested queens were mated at the mating station:
IT-20-17-2-2007 IT-20-17-10-2007 IT-20-18-12-2007 IT-20-18-15-2007 IT-20-18-16-2007 IT-20-46-58-2007 IT-20-46-61-2007 IT-20-46-62-2007 IT-20-46-63-2007 IT-20-46-66-2007 IT-20-47-32-2007 IT-20-47-35-2007 IT-20-47-38-2007 IT-20-72-21-2007 IT-20-72-22-2007 IT-20-72-30-2007 IT-20-74-41-2007 IT-20-74-42-2007 IT-20-74-45-2007 IT-20-74-47-2007 IT-20-163-53-2007 IT-20-163-57-2007 IT-20-171-68-2007 IT-20-171-70-2007 IT-20-171-73-2007 IT-20-171-75-2007
12 daughter colonies of queens mated at the mating station were tested:
IT-20-47-76-2009 IT-20-47-78-2009 IT-20-47-79-2009 IT-20-47-81-2009 IT-20-47-83-2009 IT-20-47-84-2009 IT-20-47-85-2009 IT-20-47-86-2009 IT-20-84-96-2009 IT-20-118-98-2009 IT-20-118-100-2009 IT-20-118-105-2009