19 daughter colonies of the 4a were tested:
CH-51-124-4-2016 CH-51-124-9-2016 CH-51-124-14-2016 CH-51-124-28-2016 CH-51-124-32-2016 CH-51-124-33-2015 CH-51-124-47-2016 CH-51-124-53-2016 CH-51-124-59-2015 CH-51-124-81-2016 CH-51-124-82-2016 CH-51-124-88-2015 CH-51-124-104-2015 CH-51-124-104-2016 CH-51-124-109-2016 CH-51-124-131-2015 CH-51-124-174-2016 CH-51-124-176-2016 CH-51-124-188-2016
25 tested queens were mated at the mating station:
CH-51-119-73-2018 CH-51-125-14-2018 CH-51-125-19-2018 CH-51-125-31-2018 CH-51-125-53-2018 CH-51-125-1216-2018 CH-51-125-1813-2018 CH-51-125-4463-2018 CH-51-128-17-2018 CH-51-128-19-2018 CH-51-128-26-2018 CH-51-128-39-2018 CH-51-128-126-2018 CH-51-128-127-2018 CH-51-128-201-2018 CH-51-128-202-2018 CH-51-128-203-2018 CH-51-128-204-2018 CH-51-128-205-2018 CH-51-128-206-2018 CH-51-128-207-2018 CH-51-128-209-2018 CH-51-128-212-2018 CH-51-128-213-2018 CH-51-128-215-2018
20 daughter colonies of queens mated at the mating station were tested:
CH-51-71-66-2020 CH-51-71-73-2020 CH-51-71-74-2020 CH-51-71-75-2020 CH-51-71-82-2020 CH-51-71-84-2020 CH-51-71-85-2020 CH-51-77-3-2020 CH-51-77-4-2020 CH-51-77-5-2020 CH-51-77-11-2020 CH-51-77-12-2020 CH-51-77-20-2020 CH-51-77-28-2020 CH-51-77-29-2020 CH-51-77-31-2020 CH-51-77-37-2020 CH-51-77-51-2020 CH-51-77-52-2020 CH-51-77-53-2020