27. September 2016

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Royalactin is not a royal making of a queen

Abstract Honeybee (Apis mellifera) females occur in two castes: workers and one reproductive queen. Caste is nutritionally regulated and only larvae exclusively fed on royal jelly (RJ) develop into queens. Decades of search for a queen ‘determinator’ in RJ found no specific compound, concluding that the discrete feeding regime throughout larval development controlled caste fate.…