Brain physiology during photoperiod-related caste determination in the primitively eusocial wasp Polistes jokahamae
Abstract Adult females of the primitively eusocial wasp Polistes jokahamae can change caste in response to photoperiod length. Short-day photoperiod females store more lipids but have less developed ovaries for hibernation (becoming gynes), whereas long-day photoperiod females have fewer lipid store...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2024-12-01
|
| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-024-80745-z |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1846137113271074816 |
|---|---|
| author | Ken Sasaki Hideto Yoshimura Kakeru Yokoi |
| author_facet | Ken Sasaki Hideto Yoshimura Kakeru Yokoi |
| author_sort | Ken Sasaki |
| collection | DOAJ |
| description | Abstract Adult females of the primitively eusocial wasp Polistes jokahamae can change caste in response to photoperiod length. Short-day photoperiod females store more lipids but have less developed ovaries for hibernation (becoming gynes), whereas long-day photoperiod females have fewer lipid stores but more developed ovaries under queenless conditions (becoming egg-laying workers). To explore the physiological mechanisms underlying photoperiod-related caste determination, analyses of gene expression levels in the brains of short- or long-day females were performed. Results suggest that short-day females may exhibit higher expression of genes involved in tryptophan metabolism, insulin signaling, and nutrition, including the digestion of sugars and lipids, and production of royal jelly proteins. Oral administration of tryptophan resulted in a positive correlation between tryptophan levels in the brain and lipid stores in the abdomen, suggesting that tryptophan promotes lipid storage in gynes. Long-day females showed enhanced expression of genes involved in tyramine/dopamine syntheses, epidermal growth factor receptor, insulin degradation, and oogenesis. In these females, tyramine administration increased the brain levels of tyramine and dopamine, and activated initial ovarian development under queenless conditions. Together, these results indicate that photoperiod-related caste determination in P. jokahamae may involve gene expression pathways similar to those involved in caste determination during the preimaginal stage in other Polistes species. |
| format | Article |
| id | doaj-art-23e8b4709c0a43b0b95b0fd3416605a5 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-23e8b4709c0a43b0b95b0fd3416605a52024-12-08T12:27:16ZengNature PortfolioScientific Reports2045-23222024-12-0114111210.1038/s41598-024-80745-zBrain physiology during photoperiod-related caste determination in the primitively eusocial wasp Polistes jokahamaeKen Sasaki0Hideto Yoshimura1Kakeru Yokoi2Graduate School of Agriculture, Tamagawa UniversityDivision of Crop Rotation Research for Lowland Farming, Tohoku Agricultural Research Center, NAROInsect Design Technology Group, Division of Insect Advanced Technology, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO)Abstract Adult females of the primitively eusocial wasp Polistes jokahamae can change caste in response to photoperiod length. Short-day photoperiod females store more lipids but have less developed ovaries for hibernation (becoming gynes), whereas long-day photoperiod females have fewer lipid stores but more developed ovaries under queenless conditions (becoming egg-laying workers). To explore the physiological mechanisms underlying photoperiod-related caste determination, analyses of gene expression levels in the brains of short- or long-day females were performed. Results suggest that short-day females may exhibit higher expression of genes involved in tryptophan metabolism, insulin signaling, and nutrition, including the digestion of sugars and lipids, and production of royal jelly proteins. Oral administration of tryptophan resulted in a positive correlation between tryptophan levels in the brain and lipid stores in the abdomen, suggesting that tryptophan promotes lipid storage in gynes. Long-day females showed enhanced expression of genes involved in tyramine/dopamine syntheses, epidermal growth factor receptor, insulin degradation, and oogenesis. In these females, tyramine administration increased the brain levels of tyramine and dopamine, and activated initial ovarian development under queenless conditions. Together, these results indicate that photoperiod-related caste determination in P. jokahamae may involve gene expression pathways similar to those involved in caste determination during the preimaginal stage in other Polistes species.https://doi.org/10.1038/s41598-024-80745-z |
| spellingShingle | Ken Sasaki Hideto Yoshimura Kakeru Yokoi Brain physiology during photoperiod-related caste determination in the primitively eusocial wasp Polistes jokahamae Scientific Reports |
| title | Brain physiology during photoperiod-related caste determination in the primitively eusocial wasp Polistes jokahamae |
| title_full | Brain physiology during photoperiod-related caste determination in the primitively eusocial wasp Polistes jokahamae |
| title_fullStr | Brain physiology during photoperiod-related caste determination in the primitively eusocial wasp Polistes jokahamae |
| title_full_unstemmed | Brain physiology during photoperiod-related caste determination in the primitively eusocial wasp Polistes jokahamae |
| title_short | Brain physiology during photoperiod-related caste determination in the primitively eusocial wasp Polistes jokahamae |
| title_sort | brain physiology during photoperiod related caste determination in the primitively eusocial wasp polistes jokahamae |
| url | https://doi.org/10.1038/s41598-024-80745-z |
| work_keys_str_mv | AT kensasaki brainphysiologyduringphotoperiodrelatedcastedeterminationintheprimitivelyeusocialwasppolistesjokahamae AT hidetoyoshimura brainphysiologyduringphotoperiodrelatedcastedeterminationintheprimitivelyeusocialwasppolistesjokahamae AT kakeruyokoi brainphysiologyduringphotoperiodrelatedcastedeterminationintheprimitivelyeusocialwasppolistesjokahamae |