provided a venue for the exchange of information on various aspects of aquatic invasive species s... more provided a venue for the exchange of information on various aspects of aquatic invasive species since its inception in 1990. The conference continues to provide an opportunity for dialog between academia, industry and environmental regulators within North America and from abroad.
Liste des noms français révisés et des noms latins et anglais à jour des mulettes du Canada (Biva... more Liste des noms français révisés et des noms latins et anglais à jour des mulettes du Canada (Bivalvia; Familles : Margaritiféridés, Unionidés)
Canadian Journal of Zoology-revue Canadienne De Zoologie, 2007
The distribution of freshwater mussels Pyganodon Crosse and P. Fischer, 1894 traditionally inferr... more The distribution of freshwater mussels Pyganodon Crosse and P. Fischer, 1894 traditionally inferred from morphological characters was validated by a genetic characterization of the genus within the Quebec peninsula. Individuals were identified by comparing the sequences from the female mitochondrial genome (COI and 16S) with those of reference individuals, while hybridization was assessed with male mitochondrial (COI and COII) and nuclear genomes (ITS1 and ITS2). The results confirmed most of the previous morphological identifications but revealed unexpected results. Both male and female mitochondrial genomes support the distinction between Pyganodon fragilis (Lamarck, 1819) and Pyganodon cataracta (Say, 1817). However, only one lineage of Pyganodon grandis (Say, 1829), instead of the two expected, was detected in the sampled area. The genetic survey also revealed the presence of two unidentified Pyganodon lineages, previously unreported within the Quebec peninsula. These extremely rare lineages harbour the signature of ancestral hybridizations. Finally, recent divergence and hybridizations make shell characters only partially efficient in discriminating Pyganodon lineages.
provided a venue for the exchange of information on various aspects of aquatic invasive species s... more provided a venue for the exchange of information on various aspects of aquatic invasive species since its inception in 1990. The conference continues to provide an opportunity for dialog between academia, industry and environmental regulators within North America and from abroad.
Liste des noms français révisés et des noms latins et anglais à jour des mulettes du Canada (Biva... more Liste des noms français révisés et des noms latins et anglais à jour des mulettes du Canada (Bivalvia; Familles : Margaritiféridés, Unionidés)
Canadian Journal of Zoology-revue Canadienne De Zoologie, 2007
The distribution of freshwater mussels Pyganodon Crosse and P. Fischer, 1894 traditionally inferr... more The distribution of freshwater mussels Pyganodon Crosse and P. Fischer, 1894 traditionally inferred from morphological characters was validated by a genetic characterization of the genus within the Quebec peninsula. Individuals were identified by comparing the sequences from the female mitochondrial genome (COI and 16S) with those of reference individuals, while hybridization was assessed with male mitochondrial (COI and COII) and nuclear genomes (ITS1 and ITS2). The results confirmed most of the previous morphological identifications but revealed unexpected results. Both male and female mitochondrial genomes support the distinction between Pyganodon fragilis (Lamarck, 1819) and Pyganodon cataracta (Say, 1817). However, only one lineage of Pyganodon grandis (Say, 1829), instead of the two expected, was detected in the sampled area. The genetic survey also revealed the presence of two unidentified Pyganodon lineages, previously unreported within the Quebec peninsula. These extremely rare lineages harbour the signature of ancestral hybridizations. Finally, recent divergence and hybridizations make shell characters only partially efficient in discriminating Pyganodon lineages.
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