Aberrant gene expression profiles in Mediterranean sea urchin reproductive tissues after metal exposures

Marco Torri, Salvatore Costa, Calogera Monastero, Marcello Tagliavia, Girolama Biondo, Marilena Vita Di Natale, Maria Antonietta Ragusa, Girolama Biondo, Aldo Nicosia, Tiziana Masullo, Marco Torri, Carmelo Bennici, Marilena Di Natale, Calogera Monastero, Marcello Tagliavia, Angela Cuttitta, Aldo Nicosia, Angela Cuttitta

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2 Citations (Scopus)

Abstract

Marine organisms are simultaneously exposed to numerous pollutants, among which metals probably represent the most abundant in marine environments. In order to evaluate the effects of metal exposure at molecular level in reproductive tissues, we profiled the sea urchin transcriptional response after non-lethal exposures using pathway-focused mRNA expression analyses. Herein, we show that exposures to relatively high concentrations of both essential and toxic metals hugely affected the gonadic expression of several genes involved in stress-response, detoxification, transcriptional and post-transcriptional regulation, without significant changes in gonadosomatic indices. Even though treatments did not result in reproductive tissues visible alterations, metal exposures negatively affected the main mechanisms of stress-response, detoxification and survival of adult P. lividus. Additionally, transcriptional changes observed in P. lividus gonads may cause altered gametogenesis and maintenance of heritable aberrant epigenetic effects. This study leads to the conclusion that exposures to metals, as usually occurs in polluted coastal areas, may affect sea urchin gametogenesis, thus supporting the hypothesis that parental exposure to environmental stressors affects the phenotype of the offspring.
Original languageEnglish
Pages (from-to)48-58
Number of pages11
JournalChemosphere
Volume216
Publication statusPublished - 2019

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All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Chemistry(all)
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

Torri, M., Costa, S., Monastero, C., Tagliavia, M., Biondo, G., Di Natale, M. V., Ragusa, M. A., Biondo, G., Nicosia, A., Masullo, T., Torri, M., Bennici, C., Di Natale, M., Monastero, C., Tagliavia, M., Cuttitta, A., Nicosia, A., & Cuttitta, A. (2019). Aberrant gene expression profiles in Mediterranean sea urchin reproductive tissues after metal exposures. Chemosphere, 216, 48-58.