22
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      How annual course of photoperiod shapes seasonal behavior of diploid and triploid oysters, Crassostrea gigas

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          In this work, we study if ploidy ( i. e. number of copies of chromosomes) in the oyster Crassostrea gigas may introduce differences in behavior and in its synchronization by the annual photoperiod. To answer to the question about the effect of the seasonal course of the photoperiod on the behavior of C. gigas according to its ploidy, we quantified valve activity by HFNI valvometry in situ for 1 year in both diploid and triploid oysters. Chronobiological analyses of daily, tidal and lunar rhythms were performed according the annual change of the photoperiod. In parallel, growth and gametogenesis status were measured and spawning events were detected by valvometry. The results showed that triploids had reduced gametogenesis, without spawning events, and approximately three times more growth than diploids. These differences in physiological efforts could explain the result that photoperiod (daylength and/or direction of daylength) differentially drives and modulates seasonal behavior of diploid and triploid oysters. Most differences were observed during long days (spring and summer), where triploids showed longer valve opening duration but lower opening amplitude, stronger daily rhythm and weaker tidal rhythm. During this period, diploids did major gametogenesis and spawning whereas triploids did maximal growth. Differences were also observed in terms of moonlight rhythmicity and neap-spring tidal cycle rhythmicity. We suggest that the seasonal change of photoperiod differentially synchronizes oyster behavior and biological rhythms according to physiological needs based on ploidy.

          Related collections

          Most cited references 59

          • Record: found
          • Abstract: found
          • Article: not found

          Understanding mechanisms of novel gene expression in polyploids.

          Polyploidy has long been recognized as a prominent force shaping the evolution of eukaryotes, especially flowering plants. New phenotypes often arise with polyploid formation and can contribute to the success of polyploids in nature or their selection for use in agriculture. Although the causes of novel variation in polyploids are not well understood, they could involve changes in gene expression through increased variation in dosage-regulated gene expression, altered regulatory interactions, and rapid genetic and epigenetic changes. New research approaches are being used to study these mechanisms and the results should provide a more complete understanding of polyploidy.
            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Methods for cosinor-rhythmometry.

              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Phytoplankton bloom dynamics in coastal ecosystems: A review with some general lessons from sustained investigation of San Francisco Bay, California

                Bookmark

                Author and article information

                Contributors
                Role: ConceptualizationRole: Formal analysisRole: InvestigationRole: MethodologyRole: ValidationRole: VisualizationRole: Writing – original draftRole: Writing – review & editing
                Role: Data curationRole: Formal analysisRole: SoftwareRole: Writing – review & editing
                Role: Data curationRole: Funding acquisitionRole: ResourcesRole: ValidationRole: Writing – review & editing
                Role: Data curationRole: MethodologyRole: Software
                Role: ConceptualizationRole: Formal analysisRole: Funding acquisitionRole: InvestigationRole: MethodologyRole: Project administrationRole: ResourcesRole: SupervisionRole: ValidationRole: VisualizationRole: Writing – review & editing
                Role: Editor
                Journal
                PLoS One
                PLoS ONE
                plos
                plosone
                PLoS ONE
                Public Library of Science (San Francisco, CA USA )
                1932-6203
                11 October 2017
                2017
                : 12
                : 10
                Affiliations
                [1 ] University of Bordeaux, EPOC, UMR 5805, Arcachon, France
                [2 ] CNRS, EPOC, UMR 5805, Arcachon, France
                University of Ferrara, ITALY
                Author notes

                Competing Interests: The authors have declared that no competing interests exist.

                Article
                PONE-D-17-18958
                10.1371/journal.pone.0185918
                5636115
                29020114
                © 2017 Payton et al

                This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                Page count
                Figures: 7, Tables: 0, Pages: 21
                Product
                Funding
                Funded by: French National Research Agency (ANR)
                Award ID: ACCUTOX project 13-CESA-0019
                Award Recipient :
                This work was supported by the financial support of the French National Research Agency (ANR), ACCUTOX project 13-CESA-0019 (2013-2017) and a French ministerial PhD scholarship for L. Payton.
                Categories
                Research Article
                Biology and Life Sciences
                Genetics
                Departures from Diploidy
                Polyploidy
                Triploidy
                Biology and Life Sciences
                Organisms
                Eukaryota
                Animals
                Invertebrates
                Molluscs
                Bivalves
                Oysters
                Earth Sciences
                Seasons
                Spring (Season)
                Earth Sciences
                Seasons
                Summer
                Earth Sciences
                Seasons
                Biology and Life Sciences
                Evolutionary Biology
                Population Genetics
                Ploidy
                Biology and Life Sciences
                Genetics
                Population Genetics
                Ploidy
                Biology and Life Sciences
                Population Biology
                Population Genetics
                Ploidy
                Biology and Life Sciences
                Physiology
                Reproductive Physiology
                Gametogenesis
                Medicine and Health Sciences
                Physiology
                Reproductive Physiology
                Gametogenesis
                Earth Sciences
                Seasons
                Autumn
                Custom metadata
                All relevant data are within the paper.

                Uncategorized

                Comments

                Comment on this article