Transcription profiling of six pairs of affected and non-affected male F2 mice selected on the basis of their motor activity levels
Ontology highlight
ABSTRACT: Mice were obtained from in house breeding of C57BL/6J and C57BL/6J-Chr 1A/Na breeding pairs (Jackson Laboratories, USA). To produce F1 hybrids, C57BL/6J females were mated with C57BL/6J-Chr 1A/Na males. The F1 hybrids were intercrossed, producing 82 F2 progeny (41 males and 41 females). Microarray analysis was performed on six pairs of affected and non-affected male animals from the F2 progeny selected on the basis of their motor activity levels (average daily levels of distance moved over a 3 days recording: 768±74 cm/hr (affected) versus 1765±175 cm/hr (non-affected)(p<0.0001).
Project description:An experiment was performed to investigate the perservation of gene expression upon metastasis of primary head and neck squamous cell carcinomas to the cervical lymph node.
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Project description:Mating is a complex process that causes many behavioral and physiological changes, but the factors triggering these changes and the underlying molecular processes are not well characterized. Honey bee queens provide a convenient system for dissecting these factors (e.g., physical manipulation, insemination volume, insemination substance) via instrumental insemination. We examined the effects of carbon dioxide (CO2), a commonly used anesthetic in instrumental insemination that causes changes similar to those observed after mating, and physical manipulation, which presumably mimics the act of copulation, on the brain transcriptional changes in honey bee queens. We found significant gene overlap between our study and previous mating studies in honey bee queens and Drosophila. This suggests that molecular pathways regulating the mating process are conserved across different mating regimes of honey bees as well as across insect orders.
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