Neuropeptide Y-like signalling and nutritionally mediated gene expression and behaviour in the honey bee.

Abstract:

:Previous research has led to the idea that derived traits can arise through the evolution of novel roles for conserved genes. We explored whether neuropeptide Y (NPY)-like signalling, a conserved pathway that regulates food-related behaviour, is involved in a derived, nutritionally-related trait, the division of labour in worker honey bees. Transcripts encoding two NPY-like peptides were expressed in separate populations of brain neurosecretory cells, consistent with endocrine functions. NPY-related genes were upregulated in the brains of older foragers compared with younger bees performing brood care ('nurses'). A subset of these changes can be attributed to nutrition, but neuropeptide F peptide treatments did not influence sugar intake. These results contrast with recent reports of more robust associations between division of labour and the related insulin-signalling pathway and suggest that some elements of molecular pathways associated with feeding behaviour may be more evolutionarily labile than others.

journal_name

Insect Mol Biol

journal_title

Insect molecular biology

authors

Ament SA,Velarde RA,Kolodkin MH,Moyse D,Robinson GE

doi

10.1111/j.1365-2583.2011.01068.x

subject

Has Abstract

pub_date

2011-06-01 00:00:00

pages

335-45

issue

3

eissn

0962-1075

issn

1365-2583

journal_volume

20

pub_type

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