R. Sommer

Publications266
h-index52
Citations7,943
Highly Influential Citations315
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The Pristionchus pacificus genome provides a unique perspective on nematode lifestyle and parasitism
Here we present a draft genome sequence of the nematode Pristionchus pacificus, a species that is associated with beetles and is used as a model system in evolutionary biology. With 169 Mb and 23,500… Expand
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The evolution of signalling pathways in animal development
Despite the bewildering number of cell types and patterns found in the animal kingdom, only a few signalling pathways are required to generate them. Most cell–cell interactions during embryonic… Expand
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A Conserved Endocrine Mechanism Controls the Formation of Dauer and Infective Larvae in Nematodes
Under harsh environmental conditions, Caenorhabditis elegans larvae undergo arrest and form dauer larvae that can attach to other animals to facilitate dispersal. It has been argued that this… Expand
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Involvement of an orthologue of the Drosophila pair-rule gene hairy in segment formation of the short germ-band embryo of Tribolium (Coleoptera)
THE segments in long germ-band insect embryos, like Drosophila, are all determined at syncytial blastoderm stage. This is in contrast to short germ-band embryos which show an early determination of… Expand
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Horizontal gene transfer of microbial cellulases into nematode genomes is associated with functional assimilation and gene turnover
BackgroundNatural acquisition of novel genes from other organisms by horizontal or lateral gene transfer is well established for microorganisms. There is now growing evidence that horizontal gene… Expand
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System-wide Rewiring Underlies Behavioral Differences in Predatory and Bacterial-Feeding Nematodes
The relationship between neural circuit function and patterns of synaptic connectivity is poorly understood, in part due to a lack of comparative data for larger complete systems. We compare… Expand
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Expression patterns of twist and snail in Tribolium (Coleoptera) suggest a homologous formation of mesoderm in long and short germ band insects.
The mesodermal region in Drosophila is determined by a maternally derived morphogenetic gradient system which specifies the different cell fates along the dorsoventral axis, including the prospective… Expand
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Segmentation gene expression in the housefly Musca domestica.
Drosophila and Musca both belong to the group of higher dipteran flies and show morphologically a very similar early development. However, these two species are evolutionary separated by at least 100… Expand
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Morphological, genetic and molecular description of Pristionchus pacificus sp. n. (Nematoda : Neodiplogastridae )
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Nematodes of the genus Pristionchus are closely associated with scarab beetles and the Colorado potato beetle in Western Europe.
Evolutionary developmental biology examines how changes in developmental programmes give rise to developmental and, ultimately, morphological novelty. To this end, comparisons of related but distinct… Expand
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