Diel variation of the RNA/DNA ratios in Crassostrea angulata (Lamarck) and Ruditapes decussatus (Linnaeus 1758) (Mollusca: Bivalvia)

Journal of Experimental Marine Biology and Ecology
Luis ChícharoJ Regala

Abstract

The aim of this study was to investigate the effect of time of day on RNA/DNA ratios among fed and starved Crassostrea angulata and Ruditapes decussatus juveniles. Sampling to investigate the day and night condition of juveniles was carried out for 48 h. A highly sensitive method for nucleic acid quantification was applied to bivalves. The results suggest that there is some variation in nucleic acid quantities with the time of the day. For the two species analysed, the RNA/DNA ratio was particularly high during the night and was higher in the fed animals. The results seem to indicate that there is some endogenous rhythm in the production of RNA. If there are diel changes in RNA/DNA ratios, it follows that average RNA/DNA ratios can be unrepresentative if there is any day or night bias in sampling.

References

Nov 15, 1991·Analytical Biochemistry·E M Caldarone, L J Buckley

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Citations

Feb 24, 2004·Annual Review of Physiology·Elizabeth P Dahlhoff
Aug 21, 2014·The American Naturalist·Alison P Appling, James B Heffernan
Jan 2, 2010·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·L LalouetteD Siaussat
Oct 15, 2013·Journal of Fish Biology·J PulgarV M Pulgar
Mar 28, 2009·International Journal of Molecular Sciences·Maria A Chícharo, Luis Chícharo
Feb 20, 2021·Marine Pollution Bulletin·D Quintanilla-AhumadaC Duarte

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