2023
DOI: 10.1111/mmi.15137
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Ribosome profiling in the Symbiodiniacean dinoflagellate Fugacium kawagutii shows coordinated protein synthesis of enzymes in different pathways at different times of day

Carl Bowazolo,
David Morse

Abstract: Dinoflagellates respond to daily changes in light and dark by changes in cellular metabolism, yet the mechanisms used are still unclear. For example, Fugacium (previously Symbiodinium) kawagutii shows little difference in the transcriptome between day and night suggesting little transcriptional control over gene expression. Here, we have performed ribosome profiling at 2 h intervals over a daily light–dark cycle to assess the degree to which protein synthesis rates might change over the daily cycle. The number… Show more

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“…Given the paucity of transcription factors and differentially expressed genes at transcriptional level, dinoflagellates preferentially control gene expression through post-transcriptional regulation (Roy & Morse, 2013, Zaheri & Morse, 2022. Despite lacking significant difference in the transcriptome over a daily light-dark cycle, dinoflagellates Lingulodinium and Symbiodinium possess coordinated changes in the number of ribosome-protected fragments (Bowazolo & Morse, 2023, Bowazolo et al, 2022, suggesting translational control serves as a major strategy for regulating gene expression. However, the control mechanism behind translation rates change remained to be addressed.…”
Section: Discussionmentioning
confidence: 99%
“…Given the paucity of transcription factors and differentially expressed genes at transcriptional level, dinoflagellates preferentially control gene expression through post-transcriptional regulation (Roy & Morse, 2013, Zaheri & Morse, 2022. Despite lacking significant difference in the transcriptome over a daily light-dark cycle, dinoflagellates Lingulodinium and Symbiodinium possess coordinated changes in the number of ribosome-protected fragments (Bowazolo & Morse, 2023, Bowazolo et al, 2022, suggesting translational control serves as a major strategy for regulating gene expression. However, the control mechanism behind translation rates change remained to be addressed.…”
Section: Discussionmentioning
confidence: 99%