9 daughter colonies of the 4a were tested:
DE-2-728-1-2015 DE-2-728-8-2014 DE-2-736-7-2013 DE-2-736-9-2013 DE-2-736-19-2013 DE-2-736-20-2013 DE-2-736-21-2013 DE-2-736-27-2013 DE-2-736-39-2013
8 tested queens were mated at the mating station:
DE-2-136-19400-2014 DE-2-197-35-2014 DE-2-197-59-2014 DE-2-197-71-2014 DE-2-197-73-2014 DE-2-197-74-2014 DE-2-197-97-2014 DE-2-197-99-2014
No daughter colonies from colonies mated at the station were tested yet.