2013
DOI: 10.1371/journal.pone.0083966
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Differences in sNPF Receptor-Expressing Neurons in Brains of Fire Ant (Solenopsis invicta Buren) Worker Subcastes: Indicators for Division of Labor and Nutritional Status?

Abstract: In the red imported fire ant, Solenopsis invicta Buren, the neuronal and molecular mechanisms related to worker division of labor are poorly understood. Workers from different subcastes (major, medium and minors) perform different tasks, which are loosely associated with their size. We hypothesized that the short neuropeptide F (sNPF) signaling system (NPY-like) could be involved in mechanisms of worker division of labor and sensing or responding to colony nutritional requirements. Thus, we investigated the ex… Show more

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Cited by 18 publications
(24 citation statements)
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“…However, these cells were less numerous compared to MIPs. sNPF‐immunoreactive cells in this brain region, above the FB, were also observed, for example, in a study of the fruit fly D. melanogaster or the fire ant S. invicta (Castillo & Pietrantonio, ; Chen et al ., ). Neurons containing sNPF were also located near the medial lobe of mushroom bodies and inferior protocerebrum, which were also reported in different insect species, especially in solitary insects (Nässel & Wegener, ; Heuer et al ., ; Chen et al ., ).…”
Section: Discussionmentioning
confidence: 97%
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“…However, these cells were less numerous compared to MIPs. sNPF‐immunoreactive cells in this brain region, above the FB, were also observed, for example, in a study of the fruit fly D. melanogaster or the fire ant S. invicta (Castillo & Pietrantonio, ; Chen et al ., ). Neurons containing sNPF were also located near the medial lobe of mushroom bodies and inferior protocerebrum, which were also reported in different insect species, especially in solitary insects (Nässel & Wegener, ; Heuer et al ., ; Chen et al ., ).…”
Section: Discussionmentioning
confidence: 97%
“…Neurons containing sNPF were also located near the medial lobe of mushroom bodies and inferior protocerebrum, which were also reported in different insect species, especially in solitary insects (Nässel & Wegener, ; Heuer et al ., ; Chen et al ., ). The presences of neurons containing sNPF in mushroom bodies have suggested that this neuropeptide might be very important in olfactory learning and memory, which is crucial for social behavior (Castillo & Pietrantonio, ). It should be emphasized that, in research conducted by Castillo and Pietrantonio () number of neurons containing of sNPF were increased in S. invicta brain during brood care.…”
Section: Discussionmentioning
confidence: 99%
“…Studies in Drosophila show that neuropeptide F signaling influences insulin‐like peptides (Lee et al ). Furthermore, investigation of neuropeptide F signaling in honeybees (Ament et al ) and ants (Chen and Pietrantonio, ; Castillo and Pietrantonio, ) shows that it is influenced by the nutritional status. Here, neuropeptides might be interesting factors allowing communication between insulin and hormone signaling.…”
Section: Discussionmentioning
confidence: 99%
“…Our study focuses on specific candidate neuropeptides for the regulation of age‐related polyethism: AstA, AT, sNPF, and TK. Although the biological functions remain to be shown for Cataglyphis , previous studies in the honeybee and ants suggest that they are potentially involved in the regulation of task specialization (Brockmann et al, ; Castillo and Pietrantonio, ; Pratavieira et al, ). The biochemical identification of these peptides together with knowledge of their distribution patterns and potential sites of action builds the basis for future manipulation studies on the role of neuropeptides in regulating behavioral transitions in Cataglyphis ants.…”
Section: Discussionmentioning
confidence: 99%
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