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by TRcontrarian
1821 days ago
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Bee genetics are wild. When I was a beekeeper we learned that queens lay two types of eggs - normal fertilized eggs, which will hatch into females and grow into workers if fed pollen, and queens if fed royal jelly, and unfertilized eggs, which hatch into males (stingless bees called drones) who will fly off and mate with the queens of other hives in spring. [1] At the time I had never heard of unfertilized eggs hatching, and the implication was that by creating male clones of themselves (haploid offspring, [4] not exact clones), queen bees are directly mating with the queens of other hives. This information applies to the Italian honeybee subspecies kept in captivity (Apis mellifera ligustica) - the OP's article is about the african lowland honeybee (Apis mellifera scutella). The different honeybee subspecies are interesting: italian bees are nonaggressive, russian bees are hardy, etc.[2] There's nothing special about workers having offspring either. When a honeybee queen gets old or weak, brood pheremones stop being able to suppress worker reproduction (worker policing fails [3]), and there are workers running around laying eggs in brood cells. Because workers have never mated with a drone, all their eggs are unfertilized and therefore hatch into drones [5]. This south african subspecies with a self-cloning female worker is really something unusual and unexpected, since those females should only be able to lay haploid eggs. [1] https://en.wikipedia.org/wiki/Drone_(bee) [2] https://www.perfectbee.com/learn-about-bees/the-science-of-b... [3] https://en.wikipedia.org/wiki/Worker_policing [4] https://en.wikipedia.org/wiki/Haplodiploidy [5] https://en.wikipedia.org/wiki/Laying_worker_bee |
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