Publications by authors named "Alice Saunier"

Article Synopsis
  • Planarians are freshwater flatworms valued as environmental bioindicators due to their sensitivity and ease of lab cultivation, yet studies on their behavior are scarce.
  • This research conducted six behavioral tests on three planarian species (Dugesia tigrina, Schmidtea mediterranea, and Schmidtea polychroa) to analyze their reactions and compare species differences.
  • Findings reveal Schmidtea polychroa is less active and more light-averse compared to the others, helping researchers identify four reliable tests for future ecotoxicological and neurophysiological studies.
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Catastrophic events can have profound effects on the demography of a population and consequently on genetic diversity. The dynamics of postcatastrophic recovery and the role of sexual versus asexual reproduction in buffering the effects of massive perturbations remain poorly understood, in part because the opportunity to document genetic diversity before and after such events is rare. Six natural (purely sexual) and seven cultivated (mainly clonal due to farming practices) populations of the red alga were surveyed along the Chilean coast before, in the days after and 2 years after the 8.

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Article Synopsis
  • The study investigated the mass mortality of mussels in France using Flow Cytometry (FCM) to analyze 2000 mussels collected from various locations along the Atlantic coast during 2015-2016.
  • It identified significant genetic abnormalities and contrasting profiles linked to health status, dividing mussels into high cytogenetic quality (HCQ) and low cytogenetic quality (LCQ) categories.
  • Combining FCM with cell monolayer techniques revealed that HCQ mussels primarily exhibited normal diploid cells, while LCQ mussels displayed a range of aneuploidy and abnormal cells associated with serious diseases like disseminated neoplasia.
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Anthropogenic CO emissions are rapidly changing seawater temperature, pH and carbonate chemistry. This study compares the embryonic development under high pCO conditions across the south-north distribution range of the marine clam Limecola balthica in NW Europe. The combined effects of elevated temperature and reduced pH on hatching success and size varied strongly between the three studied populations, with the Gulf of Finland population appearing most endangered under the conditions predicted to occur by 2100.

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Background: Allopatric divergence across lineages can lead to post-zygotic reproductive isolation upon secondary contact and disrupt coevolution between mitochondrial and nuclear genomes, promoting emergence of genetic incompatibilities. A previous F ST scan on the transcriptome of the Baltic clam Macoma balthica highlighted several genes potentially involved in mito-nuclear incompatibilities (MNIs). As proteins involved in the mitochondrial oxidative phosphorylation (OXPHO) chain are prone to MNIs and can contribute to the maintenance of genetic barriers, the mitochondrial genomes of six Ma.

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The introduced oriental shrimp Palaemon macrodactylus has recently become widespread in temperate estuaries worldwide. However, this recent worldwide spread outside of its native range arises after a previous introduction to the US Pacific coast, where it was restricted for more than 30 years. Using a phylogeographic approach, the present work investigates the genetic history of the invasion of this decapod worldwide.

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