Journal
JOURNAL OF APICULTURAL SCIENCE
Volume 65, Issue 1, Pages 61-70Publisher
SCIENDO
DOI: 10.2478/JAS-2021-0004
Keywords
aging; Apis cerana cerana; gene expression; location; malvolio; protein expression
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Funding
- earmarked fund for the China Agriculture Research System [CARS-44-KXJ23]
- Doctoral research foundation of the Shanxi Academy of Agricultural Sciences [YBSJJ1713]
- Applied Basic Research Programs of the Science and Technology Department of Shanxi province [201701D121117]
- Key Research and De-velopment program of the Shanxi province [201803D31025]
- National Science Foundation of China [31502021]
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The malvolio (mvl) gene plays a crucial role in the transition from nursing to foraging in Apis cerana cerana bees, indicating its involvement in labor division. High Acmvl expression levels were observed in nurse bees' thoraxes and forager bees' heads, with selective expression in specific brain cells related to sensory processing and memory. These findings suggest that Acmvl functions in the nurse-forager transition in A. c. cerana.
The malvolio (mvl) gene plays an important role in the transition from nursing to foraging in honeybees (Apis mellifera). Apis cerana cerana (A. c. cerana) is a subspecies of the eastern honeybee, well-known for its pollinator role throughout China. Although A. c. cerana shares many characteristics with A. mellifera, it is unclear whether Acmvl plays a similar role to Ammvl in foraging behavior. In this study, Acmvl expression was quantified during the transition from nursing to foraging in A. c. cerana. Acmvl protein production was also characterized in different tissues in bees from three behavioral groups. Finally, in situ hybridization was used to describe Acmvl expression patterns in forager bee brains. Acmvl expression was low early in life but then showed a major peak, which suggests its role in labor division. Examination of tissue type revealed that Acmvl expression was highest in the thoraxes of nurse bees and the heads of forager bees. In bee brains, Acmvl was selectively expressed in the somata of Kenyon cells in the mushroom bodies, optic lobes and antennal lobes. Taken together, these findings suggest that Acmvl plays a role in the nurse-forager transition of A. c. cerana.
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