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2012 Research highlights

butterfly

How is dispersal integrated in life histories: a quantitative analysis using butterflies

As dispersal plays a key role in gene flow among populations, its evolutionary dynamics under environmental changes is particularly important. The...
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ADN

Genome of model legume Medicago truncatula sequenced

Scientists from LIPM (INRA-CNRS) in collaboration with Génoscope (CEA-Institut de Génomique), as part of an international consortium *, have...
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carp = invasive species

Homogenization patterns of the world’s freshwater fish faunas

The world is currently undergoing an unprecedented decline in biodiversity, which is mainly attributable to human activities. For instance, nonnative...
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colored flies

Beyond DNA: integrating inclusive inheritance into an extended theory of evolution

Current evolutionary approaches reduce heredity to the sole genes. However, evidence is accruing that various forms of non-genetic information are...
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Poils racinaires

Structure - function analysis of the extracellular domain of NFP, a putative Nod factor receptor

Legume plants are able to form a root endosymbiosis with some soil bacteria collectively called rhizobia. This interaction between legumes and...
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Foudis

Hybridization and barriers to gene flow in an island bird radiation

While reinforcement may play a role in all major modes of speciation, relatively little is known about the timescale over which species hybridize...
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Epidermal infection

Plant-activated Bacterial Receptor Adenylate Cyclases Modulate Epidermal Infection in the Sinorhizobium meliloti-Medicago Symbiosis

Legumes and soil bacteria called rhizobia have co-evolved a facultative nitrogen-fixing symbiosis. Establishment of the symbiosis requires bacterial...
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Arabidopsis

CML9, an Arabidopsis calmodulin-like protein, contributes to plant innate immunity through a flagellin-dependent signalling pathway

Many stimuli such as hormones and elicitors induce changes in intracellular calcium levels to integrate information and activate appropriate...
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bacterium

Nucleo-cytoplasmic basal resistance regulator EDS1 connects pathogen effector recognition to cell compartment-specific immune responses

Bacterial typeIII effectors are recognized by plant intracellular nucleotide binding–leucine-rich repeat (NB-LRR) receptors. So far, processes...
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Medicago

A switch in Ca2+ spiking signature is concomitant with endosymbiotic microbe entry into cortical root cells of Medicago truncatula

During the initial stages of root colonization by either nitrogen-fixing rhizobia or arbuscular mycorrhizal (AM) fungi, the microsymbionts traverse...
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