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| Bailleul, Diane; Ollier, Sebastien; Lecomte, Jane. |
| Despite growing concern about transgenes escaping from fields, few studies have analysed the genetic diversity of crops in an agroecosystem over several years. Accurate information about the dynamics and relationship of the genetic diversity of crops in an agroecosystem is essential for risk assessment and policies concerning the containment of genetically modified crops and their coexistence with crops grown by conventional practices. Here, we analysed the genetic diversity of oilseed rape plants from fields and feral populations over 4 years in an agricultural landscape of 41 km2. We used exact compatibility and maximum likelihood assignment methods to assign these plants to cultivars. Even pure lines and hybrid cultivar seed lots contained several... |
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| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00344/45532/45091.pdf |
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| Nikolic, Natacha; Devloo-delva, Floriaan; Bailleul, Diane; Noskova, Ekaterina; Rougeux, Clément; Liautard-haag, Cathy; Hassan, Mohamad; Marie, Amandine; Borsa, Philippe; Feutry, Pierre; Grewe, Peter; Davies, Campbell; Farley, Jessica; Fernando, Daniel; Biton Porsmoguer, Sébastien; Poisson, Francois; Parker, Denham; Aulich, Jorden; Lansdell, Matt; Marsac, Francis; Arnaud-haond, Sophie. |
| The blue shark Prionace glauca is a cosmopolitan species that inhabits all oceans worldwide except the poles. Several IUCN regional assessments have classified it as Near Threatened, mostly due to overfishing. Previous genetic studies that have used classical genetic markers failed to reject the hypothesis that the species is a single worldwide population (panmixia). As such, the blue shark was proposed to be an archetype of the ‘grey zone of population differentiation’, named to signify those cases common in the marine realm, where the split among population is too recent or too faint to be detected using classical genetic markers. Here, samples collected across the majority of the global range of blue shark were sequenced (using a specific genome scan... |
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| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00645/75701/76606.pdf |
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| Bailleul, Diane; Mackenzie, Alicia; Sacchi, Olivier; Poisson, Francois; Bierne, Nicolas; Arnaud-haond, Sophie. |
| The blue shark Prionace glauca, among the most common and widely studied pelagic sharks, is a top predator, exhibiting the widest distribution range. However, little is known about its population structure and spatial dynamics. With an estimated removal of 10 to 20 million individuals per year by fisheries, the species is classified as “Near Threatened” by International Union for Conservation of Nature. We lack the knowledge to forecast the long-term consequences of such a huge removal on this top predator itself and on its trophic network. The genetic analysis of more than 200 samples collected at broad scale (from Mediterranean Sea, North Atlantic and Pacific Oceans) using mtDNA and nine microsatellite markers allowed to detect signatures of genetic... |
| Tipo: Text |
Palavras-chave: Blue shark; Conservation; Fisheries; Genetic panmixia; Prionace glauca; Stock. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00417/52866/53776.pdf |
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