Pogonomyrmex barbatus

1. Queenless condition inhibits lipid and ceramide metabolism in P. barbatus.

   “Queenless workers upregulated a fertility-linked gene and downregulated lipid metabolism genes.”

   Model organismsqueenless workersovaryfemales

   Age, caste, and social context shape ovarian morphology and transcriptomic profiles in red harvester ants

   npj aging·13 Nov 2025

2. Queenless condition increases ovarian regression in P. barbatus.

   “Queenless workers exhibited greater ovarian regression than queenright ones, indicating factors beyond queen presence may limit reproductive activation.”

   Model organismsqueenless vs queenright workersovaryfemales

   Age, caste, and social context shape ovarian morphology and transcriptomic profiles in red harvester ants

   npj aging·13 Nov 2025

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