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Invasion of the eastern Bay of Biscay by the nassariid gastropod Cyclope neritea: origin and effects on resident fauna
TLDR
Molecular genetic analyses based on mitochondrial markers suggest that the present C. neritea population in Arcachon Bay has been introduced, probably unintentionally with oyster transfers, from several source populations, genetically similar to the populations analysed in this study, i.e. those in the western Mediterranean and in south Portugal.
Invasion by the marine gastropod Ocinebrellus inornatus in France. III. Comparison of biological traits with the resident species Ocenebra erinacea
TLDR
Comparing life-history traits between the introduced and resident species showed that O. inornatus has more favourable traits, such as a better mean growth rate and a higher reproductive effort, in comparison with O. erinacea, which may explain the invader establishment and, partly, its spread along the coast of France.
Concerted evolution in the GAPDH family of retrotransposed pseudogenes
TLDR
Evidence is obtained that there is a certain level of transcription and transposition of the pseudogenes independent of the functional gene which may result from various mechanisms, which explains the occurrence of long-term homogenization of old sequences and subfamily groupings.
Multiple introductions promote range expansion of the mollusc Cyclope neritea (Nassariidae) in France: evidence from mitochondrial sequence data
TLDR
A comprehensive study based on mitochondrial gene sequences of the five recently colonized French bays as well as 14 populations located in the recognized native range of Cyclope neritea shows that recurrent human‐mediated introductions from several geographical areas in the native range may be a source for the French Atlantic populations.
Invasion by the marine gastropod Ocinebrellus inornatus in France. II. Expansion along the Atlantic coast
TLDR
This work focuses on the expansion processes along the French Atlantic coast of an exotic marine gastropod, Ocine- brellus inornatus, first detected in the Marennes-Oleron bay in 1995 and draws 2 main conclusions: first, the settlement of new populations along theFrench Atlantic coast is not associated with drastic founder events, and second, expansion along the France coast is enhanced by oyster-farming activities.
Polymorphic microsatellites for the study of newly established populations of the gastropod Cyclope neritea
TLDR
The eight microsatellite markers developed were found to be polymorphic in both populations, with two to 18 alleles per locus, which shows promise for these loci in studies of recently founded populations of C. neritea.
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