No daughter colonies of the 4a were tested yet.
9 tested queens were mated at the mating station:
BE-2-14-99-2018 BE-2-15-12-2018 BE-2-15-37-2018 BE-2-15-46-2018 BE-2-20-34-2018 BE-2-20-81-2018 BE-2-23-8-2018 BE-2-999-7-2018 BE-2-999-40-2018
30 daughter colonies of queens mated at the mating station were tested:
BE-2-1-1-2019 BE-2-1-3-2019 BE-2-1-4-2019 BE-2-1-5-2019 BE-2-3-100-2019 BE-2-5-4-2019 BE-2-8-10-2020 BE-2-8-11-2020 BE-2-8-18-2020 BE-2-11-3-2020 BE-2-15-7-2019 BE-2-15-23-2019 BE-2-15-34-2020 BE-2-15-46-2018 BE-2-20-94-2019 BE-2-23-20-2019 BE-2-999-5-2020 BE-2-999-40-2018 BE-2-999-42-2020 BE-2-999-55-2020 BE-2-999-56-2020 BE-2-999-78-2020 BE-2-999-105-2020 BE-2-999-108-2020 BE-2-999-110-2020 BE-2-999-119-2020 BE-2-999-122-2020 BE-2-999-125-2020 BE-2-999-127-2020 BE-2-999-128-2020