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6 février 2018

Une solution pour empêcher les OGM de se répandre dans la nature [Sciences & Avenir - Agriculture]

Des biologistes américains ont développé une technique ingénieuse pour empêcher toute reproduction entre des organismes génétiquement modifiés avec leurs équivalents sauvages. Dans l’idée, les populations OGM seront donc plus faciles à maîtriser une fois lâchées dans la nature.

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6 février 2018

When did flowers originate ? Solving the ‘abominable mystery’ [New Phyt Blog]

Flowering plants likely originated between 149 and 256 million years ago according to new UCL-led research.
The study, published today in New Phytologist by researchers from the UK and China, shows that flowering plants are neither as old as suggested by previous molecular studies, nor as young as a literal interpretation of their fossil record.

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6 février 2018

There are more mammal species than we thought [Phys]

A recent study published in the Journal of Mammalogy, at Oxford University Press, highlights that over 1000 new species of mammals have been described globally during the last dozen years, a finding that contradicts the notion that our mammalian relatives are well known. This rate of species discovery parallels that seen in global amphibians, and is driven by advances in DNA analysis methods and field exploration. This new listing of all living mammal species is now publicly accessible in the Mammal Diversity Database, a website funded by the American Society of Mammalogists and National Science Foundation that seeks to continue updating mammal species data to reflect newly published research.

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5 février 2018

Fruit fly hunger games—taste neurons in control [Phys]

A team of neuroscientists from the Champalimaud Centre for the Unknown (CCU), in Lisbon, Portugal, has discovered that specific taste neurons located in the fruit fly’s proboscis confer a craving for protein. The results, published in the journal eLife, could represent a step toward preventing the transmission of certain insect-borne human diseases.

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5 février 2018

Perturbation endocrinienne et biodiversité [SFE²]

La Société Française d’Écologie et d’Évolution (SFE²) vous propose ce regard de Barbara Demeneix, Professeur au Muséum National d’Histoire Naturelle, sur les perturbateurs endocriniens.

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