Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Facing Adversity: Dormant Embryos in Rotifers |
| Abstract | An in-depth look at the basic aspects of dormancy in cyclic parthenogenetic organisms is now possible thanks to research efforts conducted over the past two decades with rotifer dormant embryos. In this review, we assemble and compose the current knowledge on four central themes: (1) distribution of dormancy in animals, with an overview on the phylogenetic distribution of embryo dormancy in metazoans, and (2) physiological and cellular processes involved in dormancy, with a strong emphasis on the dormant embryos of cyclically parthenogenetic monogonont rotifers; and discussions of (3) the selective pressures and (4) the evolutionary and population implications of dormancy in these animals. Dormancy in metazoans is a widespread phenomenon with taxon-specific features, and rotifers are among the animals in which dormancy is an intrinsic feature of their life cycle. Our review shows that embryo dormancy in rotifers shares common functional pathways with other taxa at the molecular and cellular level, despite the independent evolution of dormancy across phyla. These pathways include the arrest of similar metabolic routes and the usage of common metabolites for the stabilization of cellular structures and to confer stress resistance. We conclude that specific features of recurrent harsh environmental conditions are a powerful selective pressure for the fine-tuning of dormancy patterns in rotifers. We hypothesize that similar mechanisms at the organism level will lead to similar adaptive consequences at the population level across taxa, among which the formation of egg banks, the coexistence of species, and the possibility of differentiation among populations and local adaptation stand out. Our review shows how studies of rotifers have contributed to improved knowledge of all of these aspects. |
| Source | The Biological bulletin (Lancaster) 237 (2), pp. 119–144 |
| Keywords | dormancy |
| Journal | The Biological bulletin (Lancaster) |
| Editor | Lancaster Press [etc.], Lancaster, Pa. [etc.], Stati Uniti d'America |
| Year | 2019 |
| Type | Articolo in rivista |
| DOI | 10.1086/705701 |
| Authors | EM García-Roger, E Lubzens, D Fontaneto, M Serra |
| Text | 408902 2019 10.1086/705701 dormancy Facing Adversity Dormant Embryos in Rotifers EM Garcia Roger, E Lubzens, D Fontaneto, M Serra 1Institut Cavanilles de Biodiversitat i Biologia Evolutiva, Universitat de Valencia, Valencia, Spain 2Faculty of Biology, Technion Israel Institute of Technology, Haifa, Israel 3Water Research Institute, National Research Council, Verbania Pallanza, Italy An in depth look at the basic aspects of dormancy in cyclic parthenogenetic organisms is now possible thanks to research efforts conducted over the past two decades with rotifer dormant embryos. In this review, we assemble and compose the current knowledge on four central themes 1 distribution of dormancy in animals, with an overview on the phylogenetic distribution of embryo dormancy in metazoans, and 2 physiological and cellular processes involved in dormancy, with a strong emphasis on the dormant embryos of cyclically parthenogenetic monogonont rotifers; and discussions of 3 the selective pressures and 4 the evolutionary and population implications of dormancy in these animals. Dormancy in metazoans is a widespread phenomenon with taxon specific features, and rotifers are among the animals in which dormancy is an intrinsic feature of their life cycle. Our review shows that embryo dormancy in rotifers shares common functional pathways with other taxa at the molecular and cellular level, despite the independent evolution of dormancy across phyla. These pathways include the arrest of similar metabolic routes and the usage of common metabolites for the stabilization of cellular structures and to confer stress resistance. We conclude that specific features of recurrent harsh environmental conditions are a powerful selective pressure for the fine tuning of dormancy patterns in rotifers. We hypothesize that similar mechanisms at the organism level will lead to similar adaptive consequences at the population level across taxa, among which the formation of egg banks, the coexistence of species, and the possibility of differentiation among populations and local adaptation stand out. Our review shows how studies of rotifers have contributed to improved knowledge of all of these aspects. 237 Published version https //www.journals.uchicago.edu/doi/abs/10.1086/705701 gr 2019_BiolBull_Garcia Roger et al EV.pdf Articolo in rivista Lancaster Press etc. 0006 3185 The Biological bulletin Lancaster The Biological bulletin Lancaster Biol. bull. Lancaster The biological bulletin. Lancaster diego.fontaneto FONTANETO DIEGO |