I'm glad this forum is called Beekeeping 101 otherwise this question might seem downright stupid:
Once a queen is marked by a professional breeder (Honey Bee Genetics in this case) is that mark permanent?
Here's the situation: I have a hive that is about 4 years old. About two months ago, after a final batch of brood, there was no evidence of eggs nor uncapped larvae. I assumed that an unsuccessful queen succession had taken place so I decided to requeen.
I installed the new queen package. After three days I removed the cork and pierced the candy. Blue-marked queen was active in the cage and everybody seemed happy. Yesterday afternoon (5 days after original installation) I noticed a knot of workers wrestling with something in front of the hive. My assumption was "Well, there goes that queen". To my surprise it was a dying, unmarked queen. Thus my question.